There are many theories surrounding infant imitation; however, there is no research to our knowledge evaluating the reliability of listener perception of vocal imitation in prelinguistic infants. This paper evaluates intra- and inter-rater judgments on the degree of “imitativeness” in utterances of infants below 12 months of age. 18 listeners were presented audio segments selected from naturalistic recordings to represent in each case a parent vocal model followed by an infant utterance ranging from low to high (...) degrees of imitativeness. The naturalistic data suggested vocal imitation occurred rarely across the first year, but strong intra- and inter-rater correlations were found for judgments of imitativeness. Our results suggest salience of the infant’s vocal imitation despite its rare occurrence as well as active perception by listeners of the imitative signal. We discuss infant vocal imitation as a potential signal of well-being and as an indicator of language learning and vocal communication skills as perceived by caregivers. (shrink)

The target article by Byrne & Russon treats imitation as an achievement that originates from observation. In my commentary I propose extending the database to the role of listening. Referring to current studies on song learning in birds, I suggest that at least some features of this accomplishment also may be based on learning by imitation.

Songbirds possess mirror neurons (MNs) activating during the perception and execution of specific features of songs. These neurons are located in high vocal center (HVC), a premotor nucleus implicated in song perception, production and learning, making worth to inquire their properties and functions in vocal recognition and imitative learning. By integrating a body of brain and behavioral data, we discuss neurophysiology, anatomical, computational properties and possible functions of songbird MNs. -/- We state that the neurophysiological properties of songbird (...) MNs depends on sensorimotor regions that are outside the auditory neural system. Interestingly, songbirds MNs can be the result of the specific type of song representation possessed by some songbird species. At the functional level, we discuss whether songbird MNs are involved in others' song recognition, by dissecting the function of recognition in various different but possible overlapping processes: action-oriented perception, discriminative-oriented perception and identification of the signaler. We conclude that songbird MNs may be involved in recognizing other singer's vocalizations, while their role in imitative learning still require to solve how auditory feedback are used to correct own vocal performance to match the tutor song. Finally, we compare songbird and human mirror responses, hypothesizing a case of convergent evolution, and proposing new experimental directions. (shrink)

In offering a detailed view of putative steps towards the emergence of language from a cognitive standpoint, Michael Arbib is also introducing an evolutionary framework that can be used as a useful tool to confront other viewpoints on language evolution, including hypotheses that emphasize possible alternatives to suggestions that language could not have emerged from an earlier primate vocal communication system.

It is my contention that understanding natural phenomena such as vocal mimicry can bolster theories of the evolution of language and music as well as inform evolutionary and naturalistic aesthetics more generally. In this commentary I present this phenomena as a case study in order to stimulate further aesthetic theorising.

Complex vocal learning, the capacity to imitate new sounds, underpins the evolution of animal vocal cultures and song dialects and is a key prerequisite for human speech and song. Due to its relevance for the understanding of cultural evolution and the biology and evolution of language and music, the trait has gained much scholarly attention. However, while we have seen tremendous progress with respect to our understanding of its morphological, neurological and genetic aspects, its peculiar phylogenetic distribution has (...) remained elusive. Intriguingly, animals as distinct as hummingbirds and humpback whales share well-developed vocal learning capacity in common with humans, while this ability is quite limited in nonhuman primates. Yet, solving this ‘vocal learning conundrum’ may shed light on the constraints ancestral humans overcame to unleash their vocal capacities. To this end I consider major constraints and functions that have been proposed. I highlight an especially promising ecological constraint, namely the spatial dimensionality of the environment. Based on an informal comparative review, I suggest that complex vocal learning is associated with three-dimensional habitats such as air and water. I argue that this is consistent with recent theoretical advances—i.e., the coercion-avoidance and dimensionality hypotheses—and with the long-standing hypothesis that mate choice is a major driver of the evolution and origin of complex vocal learning. However, I stress that multiple functions may apply and that quantitative phylogenetic comparative methods should be employed to finally resolve the issue. (shrink)

Gesture-first theories of language origins often raise two unsubstantiated arguments against vocal origins. First, they argue that great ape vocal behavior is highly constrained, limited to a fixed, species-typical repertoire of reflexive calls. Second, they argue that vocalizations lack any significant potential to ground meaning through iconicity, or resemblance between form and meaning. This paper reviews the considerable evidence that debunks these two “myths”. Accumulating evidence shows that the great apes exercise voluntary control over their vocal behavior, (...) including their breathing apparatus, larynx, and supralaryngeal articulators. They are also able to learn new vocal behaviors, and even show some rudimentary ability for vocal imitation. In addition, an abundance of research demonstrates that the vocal modality affords rich potential for iconicity. People can understand iconicity in sound symbolism, and they can produce iconic vocalizations to communicate a diverse range of meanings. Thus, two of the primary arguments against vocal origins theories are not tenable. As an alternative, the paper concludes that the origins of language – going as far back as our last common ancestor with great apes – are rooted in iconicity in both gesture and vocalization. (shrink)

Vocal imitation does not imply an ability to imitate nonvocal motor patterns. Exponential growth in frequency of a behaviour in a population does not imply diffusion by social learning. Distinguishing analogues from homologues of human culture will avoid confusion in discussion of evolution of culture. Original sources do not demonstrate social learning, imitation, or teaching of intentional beaching or lobtail feeding in cetaceans.

Mimicry of appearance or of facial, vocal, or gestural expressions emerges frequently among members of different species. When such mimicry directly relates to affective aspects of an interaction, researchers talk about “emotional mimicry”. Emotional mimicry has been amply documented but its functionality is still debated. Why and when do people mimic the expressions of others, who benefits, the mimicker or the mimicked, and how do they benefit? Which processes underlie emotional mimicry? Is it completely automatic and unconscious or can (...) it be deliberate and conscious? The current Theory Section addresses these questions from different theoretical perspectives. The invited article by Hess and Fischer focused on the role of mimicry in social regulation and social bonding. The invited comment by Krets and Akyüz highlights information gathering and prediction in social interaction. The invited comment by Bernhold and Giles emphasizes vocal communication and its role in interpersonal accommodation. In this editorial, I propose the different theoretical perspectives may be integrated by assuming a multilevel appraisal and response generation mechanism. I also suggest that emotional mimicry research may be broadened by including social learning, vocal imitation, interspecies comparisons, and affective computing approaches. (shrink)

How did human vocalizations come to acquire meaning in the evolution of our species? Charles Darwin proposed that language and music originated from a common emotional signal system based on the imitation and modification of sounds in nature. This protolanguage is thought to have diverged into two separate systems, with speech prioritizing referential functionality and music prioritizing emotional functionality. However, there has never been an attempt to empirically evaluate the hypothesis that a single communication system can split into two (...) functionally distinct systems that are characterized by music- and languagelike properties. Here, we demonstrate that when referential and emotional functions are introduced into an artificial communication system, that system will diverge into vocalization forms with speech- and music-like properties, respectively. Participants heard novel vocalizations as part of a learning task. Half referred to physical entities and half functioned to communicate emotional states. Participants then reproduced each sound with the defined communicative intention in mind. Each recorded vocalization was used as the input for another participant in a serial reproduction paradigm, and this procedure was iterated to create 15 chains of five participants each. Referential vocalizations were rated as more speech-like, whereas emotional vocalizations were rated as more music-like, and this association was observed cross-culturally. In addition, a stable separation of the acoustic profiles of referential and emotional vocalizations emerged, with some attributes diverging immediately and others diverging gradually across iterations. The findings align with Darwin’s hypothesis and provide insight into the roles of biological and cultural evolution in the divergence of language and music. (shrink)

In this paper, we distinguish between a number of different phenomena that have been called imitation, and identify one form—a high fidelity mechanism for social learning—considered to be crucial for the development of language. Subsequently, we consider a common claim in the language evolution literature, which is that prior to the emergence of vocal language our ancestors communicated using a sophisticated gestural protolanguage, the learning of some parts of which required manual imitation. Drawing upon evidence from recent (...) work in neuroscience, primatology, and archeology, we argue that while gestural communication undoubtedly played a crucial role in language evolution, the grounds for thinking that manual imitation did are currently unconvincing. (shrink)

Birds produce different types of sounds in different contexts such as begging for food in youngsters, alerting to a danger, defending a territory or attracting a sexual partner. About half of the bird species are able to transform their vocalizations through imitation, improvisation or invention of sounds. Here we review the different experimental procedures that have been used to study the learning capacities of birds in the vocal domain and in the auditory domain, with a particular emphasis on (...) recent technological developments. Nowadays, it is possible to record individual vocalizations of birds living in social groups or to record continuously the vocal ontogeny of birdsong. In conditioning experiments, new paradigms have successfully replaced food rewards with a socio-sexual reward. It is possible to engage in vocal interactions with a bird using dedicated computer systems. In both the laboratory and more recently in the field, different techniques have been used to train young oscine songbirds to learn from acoustic models. The use of virtual social environments and robots as social agents are also promising avenues. All together, these new techniques will permit researchers to explore more deeply the umwelt of bird species. (shrink)

For many years the evolution of language has been seen as a disreputable topic, mired in fanciful “just so stories” about language origins. However, in the last decade a new synthesis of modern linguistics, cognitive neuroscience and neo-Darwinian evolutionary theory has begun to make important contributions to our understanding of the biology and evolution of language. I review some of this recent progress, focusing on the value of the comparative method, which uses data from animal species to draw inferences about (...) language evolution. Discussing speech first, I show how data concerning a wide variety of species, from monkeys to birds, can increase our understanding of the anatomical and neural mechanisms underlying human spoken language, and how bird and whale song provide insights into the ultimate evolutionary function of language. I discuss the “descended larynx” of humans, a peculiar adaptation for speech that has received much attention in the past, which despite earlier claims is not uniquely human. Then I will turn to the neural mechanisms underlying spoken language, pointing out the difficulties animals apparently experience in perceiving hierarchical structure in sounds, and stressing the importance of vocal imitation in the evolution of a spoken language. Turning to ultimate function, I suggest that communication among kin (especially between parents and offspring) played a crucial but neglected role in driving language evolution. Finally, I briefly discuss phylogeny, discussing hypotheses that offer plausible routes to human language from a non-linguistic chimp-like ancestor. I conclude that comparative data from living animals will be key to developing a richer, more interdisciplinary understanding of our most distinctively human trait: language. (shrink)

Vocal imitation in songbirds exhibits interesting parallels to infant speech development and is currently the model system of choice for exploring the behavioural, molecular and electrophysiological substrates of vocal learning. Among songbirds, the Zebra Finch ( Taeniopygia guttata ) is currently used as the `flying mouse' of birdsong research. Only males sing and they develop their song primarily during a short sensitive period in early life. They learn their speciesspecific song patterns by memorizing and imitating the songs (...) of conspecifics, mainly adults. Since Immelmann's pioneering work, thousands of zebra finches have been raised in strictly controlled auditory environments to examine how their experience affected their songs. In this article, I review the different experimental procedures that have been used in the laboratory to study the social influences on song learning in the Zebra Finch. Poor song learning was observed using passive playback of taped songs, whereas self-eliciting exposure using operant tutoring techniques induced significant learning, but with a high interindividual variability. The success of the training paradigm is often measured by the quality of imitation of the songs to which the young bird is exposed. Using empirical evidence from the field and the laboratory, I will also discuss this issue, by summarizing possible advantages and disadvantages of producing a perfect imitation. So far, the best method to get a close copy of a song model in the Zebra Finch is to place a single young bird with an adult male. This situation, which is rather unnatural, does not meet the criteria for precise control necessary in experimental conditions. Optimizing the methods used to train a zebra finch to learn a song, in order to be able to predict the imitation success, will improve our understanding of the dynamics of vocal production learning. It would also consolidate this species as a research model of relevance to human speech development and disorders. Keywords: Zebra Finch; birdsong; learning; development; memory; social influences. (shrink)

Vocal imitation in songbirds exhibits interesting parallels to infant speech development and is currently the model system of choice for exploring the behavioural, molecular and electrophysiological substrates of vocal learning. Among songbirds, the Zebra Finch is currently used as the ‘flying mouse’ of birdsong research. Only males sing and they develop their song primarily during a short sensitive period in early life. They learn their speciesspecific song patterns by memorizing and imitating the songs of conspecifics, mainly adults. (...) Since Immelmann's pioneering work, thousands of zebra finches have been raised in strictly controlled auditory environments to examine how their experience affected their songs. In this article, I review the different experimental procedures that have been used in the laboratory to study the social influences on song learning in the Zebra Finch. Poor song learning was observed using passive playback of taped songs, whereas self-eliciting exposure using operant tutoring techniques induced significant learning, but with a high interindividual variability. The success of the training paradigm is often measured by the quality of imitation of the songs to which the young bird is exposed. Using empirical evidence from the field and the laboratory, I will also discuss this issue, by summarizing possible advantages and disadvantages of producing a perfect imitation. So far, the best method to get a close copy of a song model in the Zebra Finch is to place a single young bird with an adult male. This situation, which is rather unnatural, does not meet the criteria for precise control necessary in experimental conditions. Optimizing the methods used to train a zebra finch to learn a song, in order to be able to predict the imitation success, will improve our understanding of the dynamics of vocal production learning. It would also consolidate this species as a research model of relevance to human speech development and disorders. Keywords: Zebra Finch; birdsong; learning; development; memory; social influences. (shrink)

Scholars have long been captivated by the parallels between birdsong and human speech and language. In this book, leading scholars draw on the latest research to explore what birdsong can tell us about the biology of human speech and language and the consequences for evolutionary biology. They examine the cognitive and neural similarities between birdsong learning and speech and language acquisition, considering vocal imitation, auditory learning, an early vocalization phase, the structural properties of birdsong and human language, and (...) the striking similarities between the neural organization of learning and vocal production in birdsong and human speech. After outlining the basic issues involved in the study of both language and evolution, the contributors compare birdsong and language in terms of acquisition, recursion, and core structural properties, and then examine the neurobiology of song and speech, genomic factors, and the emergence and evolution of language. Contributors: Hermann Ackermann, Gabriël J.L. Beckers, Robert C. Berwick, Johan J. Bolhuis, Noam Chomsky, Frank Eisner, Martin Everaert, Michale S. Fee, Olga Fehér, Simon E. Fisher, W. Tecumseh Fitch, Jonathan B. Fritz, Sharon M.H. Gobes, Riny Huijbregts, Eric Jarvis, Robert Lachlan, Ann Law, Michael A. Long, Gary F. Marcus, Carolyn McGettigan, Daniel Mietchen, Richard Mooney, Sanne Moorman, Kazuo Okanoya, Christophe Pallier, Irene M. Pepperberg, Jonathan F. Prather, Franck Ramus, Eric Reuland, Constance Scharff, Sophie K. Scott, Neil Smith, Ofer Tchernichovski, Carel ten Cate, Christopher K. Thompson, Frank Wijnen, Moira Yip, Wolfram Ziegler, Willem Zuidema. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Plato’s CratylusRosamond Kent SpragueDavid Sedley. Plato’s Cratylus. New York: Cambridge University Press, 2003. Pp. xi + 190. Cloth, $60.00Discussion of Plato's Cratylus, to which this book is a notable contribution, must straightway come to terms with the question of Plato's seriousness (or lack thereof) in the etymology sections of the dialogue. Professor Sedley is a strong advocate of the seriousness of the etymologies, a position which, he remarks, (...) will not surprise most classicists, although it "may cause apoplexy among many of Plato's philosophical admirers" (23). More colloquially he writes, "if Plato was joking, the joke flopped" (39).But need we assume that Plato was either serious or joking? His sense of humor was peculiar, and seems to me nicely characterized by Guthrie when, in commenting on the present dialogue, he speaks of Plato as "tumbling together with an equally straight face absurdities and deeply held convictions" (History V, 25). I also incline more than Sedley to the frequent topicality of Plato's work.Nevertheless, the Sedley thesis may be seen to pay rich rewards. Perhaps most notable is the perception that the etymologies constitute a philosophical curriculum, moving along a well-defined trace from cosmology to the consideration (a watershed here) of ethical terms. This progression is especially significant in marking the emancipation of Plato from his early association with Cratylus and his subsequent allegiance to Socrates.Another mandatory topic is, of course, chronology. The Cratylus is seen to be unusual here in that what we have is most probably a reedited version. (A substantive point is at issue because the earlier version fails to distinguish clearly between the lawmaker and the [End Page 490] dialectician.) Thus to the question, where does the Cratylus fit in the traditional chronology, Sedley's answer is, "not in any one place" (7). As to the projected time of the revision, proximity to the Sophist is most likely.Sedley's general approach to the etymologies is hierarchical (here he identifies two important principles, Uniformity and Groundedness) rather than one of mutual support. He writes that the "'imitation' relation between sounds and things will be found [at] not just the primary level, but all the way up the chain" (126). Similarly with Socrates' painting analogy: "the primary pigments which the painter uses already imitate the simplest objects of vision" (128). In both cases the principles of Uniformity and Groundedness "are to some extent permitted to merge" (127).The business of name-making is of course a techne, as is that of painting. That both of these arts are approximate in nature is not an "ad hoc postulate [but] lies at the heart of Platonic metaphysics," since "any craftsman's embodiment of a Form in matter is necessarily less than perfect" (45). (As Sedley tellingly points out, "it is the Sophist Thrasymachus, and not Socrates, who proposes that a craftsman, qua craftsman, never gets anything wrong" [44].) As for Socrates' final position, it is "not the reversion to conventionalism that it has so often been taken to be" (145). Convention does play some part in signification, but it is also the case that names are some kind of vocal imitations, "a thesis, massively documented in the etymological section, from which Socrates never retreats" (145).One point on which I would like to have had Sedley's comments is the following: what does he think of Diogenes Laertius's remark (III, 6) that not only did Plato, after the death of Socrates, "attach himself to Cratylus the Heraclitean," but also to Hermogenes "who professed the philosophy of Parmenides"? Now the only real Parmenideanism in the dialogue (the position that a name is either a true name or not a name at all) is attributed not to Hermogenes but to Cratylus! (Is Descartes an empiricist? Is Hume a rationalist?) Furthermore, even though Cratylus adopts this position on a variety of occasions (429d, 432a, 433c, 436c, and 438c), he is too flighty (or, one might say, too fluxy) to stick with it, and continually relapses (431a, 432d, 433b, 435e, for instance). At the risk of being categorized as a non-serious reader of the Cratylus (which I am not... (shrink)

Speech is a perceptuo-motor system. A natural computational modeling framework is provided by cognitive robotics, or more precisely speech robotics, which is also based on embodiment, multimodality, development, and interaction. This paper describes the bases of a virtual baby robot which consists in an articulatory model that integrates the non-uniform growth of the vocal tract, a set of sensors, and a learning model. The articulatory model delivers sagittal contour, lip shape and acoustic formants from seven input parameters that characterize (...) the configurations of the jaw, the tongue, the lips and the larynx. To simulate the growth of the vocal tract from birth to adulthood, a process modifies the longitudinal dimension of the vocal tract shape as a function of age. The auditory system of the robot comprises a “phasic” system for event detection over time, and a “tonic” system to track formants. The model of visual perception specifies the basic lips characteristics: height, width, area and protrusion. The orosensorial channel, which provides the tactile sensation on the lips, the tongue and the palate, is elaborated as a model for the prediction of tongue-palatal contacts from articulatory commands. Learning involves Bayesian programming, in which there are two phases: specification of the variables, decomposition of the joint distribution and identification of the free parameters through exploration of a learning set, and utilization which relies on questions about the joint distribution. Two studies were performed with this system. Each of them focused on one of the two basic mechanisms, which ought to be at work in the initial periods of speech acquisition, namely vocal exploration and vocal imitation. The first study attempted to assess infants’ motor skills before and at the beginning of canonical babbling. It used the model to infer the acoustic regions, the articulatory degrees of freedom and the vocal tract shapes that are the likeliest explored by actual infants according to their vocalizations. Subsequently, the aim was to simulate data reported in the literature on early vocal imitation, in order to test whether and how the robot was able to reproduce them and to gain some insights into the actual cognitive representations that might be involved in this behavior. Speech modeling in a robotics framework should contribute to a computational approach of sensori-motor interactions in speech communication, which seems crucial for future progress in the study of speech and language ontogeny and phylogeny. (shrink)

Unlike nonhuman primates, thousands of bird species have articulatory capabilities that equal or surpass those of humans, and they develop their vocalizations through vocal imitation in a way that is very similar to how human infants learn to speak. An understanding of how speech mechanisms have evolved is therefore unlikely to yield key insights into how the human brain is special.

In this paper, we propose the expression cognitive twists for cognitive mechanisms that result from the coevolution of genes and learning. Evidence is available that at least some cultural learning mechanisms, such as imitation and language, have evolved genetically under the pressure produced by culture, even though they are mostly acquired through domain-general learning during development. Although the existence of these mechanisms is consistent with evolutionary theory, their importance has not been sufficiently emphasized by mind-centered accounts of human cognitive (...) evolution, namely evolutionary psychology and cultural evolutionary psychology. We provide concrete examples of cognitive twists, such as vocal imitation. Genetic changes in action-perception matching circuits suggest that human imitation and perhaps language are cognitive twists, namely plastic, learnable, yet genetically evolved cognitive mechanisms. We conclude that cognitive twists depict plausible evolutionary scenarios for the evolution of cognition in Homo sapiens. (shrink)

The article analyzes the neural and functional grounding of language skills as well as their emergence in hominid evolution, hypothesizing stages leading from abilities known to exist in monkeys and apes and presumed to exist in our hominid ancestors right through to modern spoken and signed languages. The starting point is the observation that both premotor area F5 in monkeys and Broca's area in humans contain a “mirror system” active for both execution and observation of manual actions, and that F5 (...) and Broca's area are homologous brain regions. This grounded the mirror system hypothesis of Rizzolatti and Arbib (1998) which offers the mirror system for grasping as a key neural “missing link” between the abilities of our nonhuman ancestors of 20 million years ago and modern human language, with manual gestures rather than a system for vocal communication providing the initial seed for this evolutionary process. The present article, however, goes “beyond the mirror” to offer hypotheses on evolutionary changes within and outside the mirror systems which may have occurred to equip Homo sapiens with a language-ready brain. Crucial to the early stages of this progression is the mirror system for grasping and its extension to permit imitation. Imitation is seen as evolving via a so-called simple system such as that found in chimpanzees (which allows imitation of complex “object-oriented” sequences but only as the result of extensive practice) to a so-called complex system found in humans (which allows rapid imitation even of complex sequences, under appropriate conditions) which supports pantomime. This is hypothesized to have provided the substrate for the development of protosign, a combinatorially open repertoire of manual gestures, which then provides the scaffolding for the emergence of protospeech (which thus owes little to nonhuman vocalizations), with protosign and protospeech then developing in an expanding spiral. It is argued that these stages involve biological evolution of both brain and body. By contrast, it is argued that the progression from protosign and protospeech to languages with full-blown syntax and compositional semantics was a historical phenomenon in the development of Homo sapiens, involving few if any further biological changes. Key Words: gestures; hominids; language evolution; mirror system; neurolinguistics; primates; protolanguage; sign language; speech; vocalization. (shrink)

Studies of animal culture have not normally included a consideration of cetaceans. However, with several long-term field studies now maturing, this situation should change. Animal culture is generally studied by either investigating transmission mechanisms experimentally, or observing patterns of behavioural variation in wild populations that cannot be explained by either genetic or environmental factors. Taking this second, ethnographic, approach, there is good evidence for cultural transmission in several cetacean species. However, only the bottlenose dolphin (Tursiops) has been shown experimentally to (...) possess sophisticated social learning abilities, including vocal and motor imitation; other species have not been studied. There is observational evidence for imitation and teaching in killer whales. For cetaceans and other large, wide-ranging animals, excessive reliance on experimental data for evidence of culture is not productive; we favour the ethnographic approach. The complex and stable vocal and behavioural cultures of sympatric groups of killer whales (Orcinus orca) appear to have no parallel outside humans, and represent an independent evolution of cultural faculties. The wide movements of cetaceans, the greater variability of the marine environment over large temporal scales relative to that on land, and the stable matrilineal social groups of some species are potentially important factors in the evolution of cetacean culture. There have been suggestions of gene-culture coevolution in cetaceans, and culture may be implicated in some unusual behavioural and life-history traits of whales and dolphins. We hope to stimulate discussion and research on culture in these animals. (shrink)

In their enthusiasm for programming, computational linguists have tended to lose sight of what humansdo. They have conceived of conversations as independent of sound and the bodies that produce it. Thus, implicit in their simulations is the assumption that the text is the essence of talk. In fact, unlike electronic mail, conversations are acoustic events. During everyday talk, human understanding depends both on the words spoken and on fine interpersonal vocal coordination. When utterances are analysed into sequences of word-based (...) forms, however, these prosodic aspects of language disappear. Therefore, to investigate the possibility that machines might talk, we propose acommunion game that includes this interpersonal patterning. Humans and machines would talk together and, based on recordings of them, a panel would appraise the relevant merit of each machine's simulation by how true to life it sounded. Unlike Turing's imitation game, the communion game overtly focuses attention, not on intelligence, but on language. It is designed to facilitate the development of social groups of adaptive robots that exploit complex acoustic signals in real time. We consider how the development of such machines might be approached. (shrink)

Auditory-guided vocal learning is a mechanism that operates both in humans and other animal species making us capable to imitate arbitrary sounds. Both auditory memories and auditory feedback interact to guide vocal learning. This may explain why it is easier for humans to imitate the pitch of a human voice than the pitch of a synthesized sound. In this study, we compared the effects of two different feedback modalities in learning pitch-matching abilities using a synthesized pure tone in (...) 47 participants with no prior music experience. Participants were divided into three groups: a feedback group receiving real-time visual feedback of their pitch as well as knowledge of results; an equal-timbre group receiving additional auditory feedback of the target note with a similar timbre to the instrument being used ; and a control group practicing without any feedback or knowledge of results. An additional fourth group of violin experts performed the same task for comparative purposes. All groups were posteriorly evaluated in a transfer phase. Both experimental groups improved their intonation abilities with the synthesized sound after receiving feedback. Participants from the equal-timber group seemed as capable as the feedback group of producing the required pitch with the voice after listening to the human voice, but not with the violin. In addition, only participants receiving real-time visual feedback learned and retained in the transfer phase the mapping between the synthesized pitch and its correspondence with the produced vocal or violin pitch. It is suggested that both the effect of an objective external reward, together with the experience of exploring the pitch space with their instrument in an explicit manner, helped participants to understand how to control their pitch production, strengthening their schemas, and favoring retention. (shrink)

Two computer simulations are investigated that model interaction of cultural evolution of language and biological evolution of adaptations to language. Both are agent‐based models in which a population of agents imitates each other using realistic vowels. The agents evolve under selective pressure for good imitation. In one model, the evolution of the vocal tract is modeled; in the other, a cognitive mechanism for perceiving speech accurately is modeled. In both cases, biological adaptations to using and learning speech evolve, (...) even though the system of speech sounds itself changes at a more rapid time scale than biological evolution. However, the fact that the available acoustic space is used maximally (a self‐organized result of cultural evolution) is constant, and therefore biological evolution does have a stable target. This work shows that when cultural and biological traits are continuous, their co‐evolution may lead to cognitive adaptations that are strong enough to detect empirically. (shrink)

Two computer simulations are investigated that model interaction of cultural evolution of language and biological evolution of adaptations to language. Both are agent-based models in which a population of agents imitates each other using realistic vowels. The agents evolve under selective pressure for good imitation. In one model, the evolution of the vocal tract is modeled; in the other, a cognitive mechanism for perceiving speech accurately is modeled. In both cases, biological adaptations to using and learning speech evolve, (...) even though the system of speech sounds itself changes at a more rapid time scale than biological evolution. However, the fact that the available acoustic space is used maximally is constant, and therefore biological evolution does have a stable target. This work shows that when cultural and biological traits are continuous, their co-evolution may lead to cognitive adaptations that are strong enough to detect empirically. (shrink)

I present empirical evidence suggesting that an infant first becomes aware of herself as the focal center of a caregiver's attending. Yet that does not account for her awareness of herself as agent. To address this question, I bring in research on neonatal imitation, as well as studies demonstrating the existence of a neural system in which parts of the same brain areas are activated when observing another's action and when executing a similar one. Applying these findings, I consider (...) gestural exchanges between infant and caregiver, such as reciprocal smiles and imitative vocalizations. Lacking self-awareness at first, the infant is unaware of her own agency. By returning her unwitting gesture, the caregiver singles out for her—thanks to neural matching—the gesture's kinesthesis. Moreover, the caregiver's smile, imitative vocalization, or other gesture is the form that focusing takes. The kinesthesis of the infant's gesture, in being singled out, is experienced by the infant as what the caregiver is focusing on. It is experienced as being within the focal center. In this way, the infant becomes aware of herself as a bodily entity acting toward the caregiver. Exchanges that involve matching are at first essential, I argue, in making the infant present to herself in action. Matching will cease to be necessary, but self-awareness continues to depend fundamentally on others until the acquisition of language, when the child becomes capable of talking to herself as if she were the caregiver. (shrink)

The aim of this article is to mount a challenge to gesture-first hypotheses about the evolution of language by identifying constraints on the emergence of symbol use. Current debates focus on a range of pre-conditions for the emergence of language, including co-operation and related mentalising capacities, imitation and tool use, episodic memory, and vocal physiology, but little specifically on the ability to learn and understand symbols. It is argued here that such a focus raises new questions about the (...) plausibility of gesture-first hypotheses, and so about the evolution of language in general. After a brief review of the methodology used in the article, it is argued that existing uses of gesture in hominid communities may have prohibited the emergence of symbol use, rather than ‘bootstrapped’ symbolic capacities as is usually assumed, and that the vocal channel offers other advantages in both learning and using language. In this case, the vocal channel offers a more promising platform for the evolution of language than is often assumed. (shrink)

In early hominins, there possibly was high selective pressure for the development of reciprocal mother and child vocalizations such as proposed by Falk. In this context, temporoparietal-prefrontal networks that participate in tasks such as working memory and imitation may have been strongly selected for. These networks may have become the precursors of the future language areas of the human brain.

How did social communication evolve in primates? In this volume, primatologists, linguists, anthropologists, cognitive scientists and philosophers of science systematically analyze how their specific disciplines demarcate the research questions and methodologies involved in the study of the evolutionary origins of social communication in primates in general, and in humans in particular. In the first part of the book, historians and philosophers of science address how the epistemological frameworks associated with primate communication and language evolution studies have changed over time, and (...) how these conceptual changes affect our current studies on the subject matter. In the second part, scholars provide cutting-edge insights into the various means through which primates communicate socially in both natural and experimental settings. They examine the behavioral building blocks by which primates communicate, and they analyze what the cognitive requirements are for displaying communicative acts. Chapters highlight cross-fostering and language experiments with primates, primate mother-infant communication, the display of emotions and expressions, manual gestures and vocal signals, joint attention, intentionality and theory of mind. The primary focus of the third part is on how these various types of communicative behavior possibly evolved, and how they can be understood as evolutionary precursors to human language. Leading scholars analyze how both manual and vocal gestures gave way to mimetic and imitational protolanguage, and how the latter possibly transitioned into human language. In the final part, we turn to the hominin lineage, and anthropologists, archeologists and linguists investigate what the necessary neurocognitive, anatomical and behavioral features are in order for human language to evolve, and how language differs from other forms of primate communication. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy and Literature 25.2 (2001) 335-346 [Access article in PDF] Aesthetic Incunabula Ellen Dissanayake Incunabula n. pl. (f. L swaddling clothes, cradle): Early stages of development of a thing.Over the past thirty years, developmental psychologists have discovered remarkable cognitive abilities in young infants. Before these investigations, common pediatric wisdom accepted that apart from a few innate "reflexes"--for crying, suckling, clinging, startling--babies were pretty much tabulae rasae for their elders (...) to inscribe as they (and their cultures) decreed. Today, however, it is well established that newborns come into the world with decided preferences and motivations, so that one can speak intelligently of "neonatal" (or even "fetal") psychology. 1The demonstrable existence of inherent psychological capacities in newborns and infants has important implications for twenty-first-century literary theory, which--also over the past thirty years--has operated under the theoretical assumption that all knowledge and experience are mediated by culture and that there is therefore no "natural" psychological or emotional experience. Yet if, as infant psychology confirms, babies in every culture show the same or similar cognitive abilities and preferences and the same or similar motivations and emotional responses, it is necessary to modify the dogmatic assertion that all experience, including literary response, is socially constructed. Rather, adult psychology and experience grow from and build upon inborn motives and preferences. Literary theorists can no longer ignore contemporary knowledge in psychobiology, ethology, and evolutionary psychology that directly pertains to conceptualizing their subject.The innate capacities of newborns predispose them specifically for social and emotional interaction with others, not simply for soliciting [End Page 335] their physical care. For example, newborns prefer human faces to any other sight (high-contrast colors, cartoon characters, cute stuffed animals) and human voices to any other sound (soft music, tinkling bells, The Chipmunks). 2 They can imitate face, mouth, and hand movements and respond appropriately to another person's emotional expressions of sadness, fear, and surprise. 3 At birth, infants can estimate and anticipate intervals of time and temporal sequences and remember these temporal patterns, categorizing them both in time and space and in terms of affect and arousal. 4 By six weeks of age, these perceptual and cognitive abilities of normal infants permit them to engage with adult partners in complex communicative interchanges--the playful behavior that is commonly or colloquially called "babytalk."Babytalk is not the trival or inane pastime that it might superficially seem but, rather, a cradle in which nascent psychosocial capacities can emerge and be developed. Interestingly for literary theory, babytalk achieves these effects through fundamentally aesthetic means. Adult-infant engagements are noteworthy for their use of stylization (formalization or simplification), repetition, exaggeration, and elaboration in visual, vocal, and gestural modalities. I call these "aesthetic incunabula"--that is, sources (or early developmental stages) of the operations used by artists in all media to attract attention and to provoke and manipulate emotional response. The existence of sensitivities to such features in the first months of life suggests that humans are born with natural (innate, universal) predispositions for aesthetic engagement from which cultures and individuals can go on to create their myriad elaborated forms of artistic expression.Although babytalk varies in minor details among individuals and cultures, it can be described in all instances as a multimedia performance. That is, it contains not only "talk" (or the characteristic high-pitched, undulant, breathy, patterned, repetitive vocalizations with pauses called "motherese," "parentese," or "infant-directed speech"). Along with the utterances are peculiarly stereotyped, repetitive, and exaggerated facial expressions (such as widened eyes, uplifted eyebrows, sustained open mouth, and smiles), head movements (e.g., distinct bobs backwards, slow rhythmic nods, movement toward and away from the baby), and gestures (such as touching, stroking, and rhythmic pats) to which infants respond with their own vocal sounds and face and body movements and, in many societies, sustained mutual gaze.Babytalk is not only a performance, but a duet that incorporates both synchrony of behavior and alternation (or turn-taking)--activities that [End Page 336] are made possible by the infant's remarkable inborn sensitivity to temporal sequence and pattern. Microanalyses of videotaped interactions (at 24... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Diacritics 29.3 (1999) 22-39 [Access article in PDF] Review Article Language, or No Language Daniel Heller-Roazen Werner Hamacher. Maser: Bemerkungen im Hinblick auf Hinrich Weidemanns Bilder. Berlin: Gallerie Max Hetzler, 1998. All translations from this text are my own. [M] ________. pleroma--Reading in Hegel. Trans. Nicholas Walker and Simon Jarvis. Stanford: Stanford UP, 1998. [pl] ________. Premises: Essays on Philosophy and Literature from Kant to Celan. Trans. Peter Fenves. (...) Cambridge, MA: Harvard UP, 1996. [P] Trans. of Entferntes Verstehen: Studien zu Philosophie und Literatur von Kant bis Celan. Frankfurt am Main: Suhrkamp, 1998. [EV] 1. The Rest of Language When Aristotle, at the opening of his treatise on interpretation, defines the nature and function of language, he does so by referring "the things in the voice [ta en tei phonei]" to impressions on the soul (pathe¯mata), which, in turn, he refers to "things [pragmata]" [De interpretatione 16a4 ff.]. Aristotle's text establishes, in this way, that vocal utterances are signs of things. The philosophical significance of this gesture could not be more decisive. Once De interpretatione determines the canonical form of the statement as a "meaningful sentence [logos se¯mantikos]" and, more precisely, as a "proposition [logos apophantikos]" bearing truth or falsity, and once it asserts that truth and falsity reside in the composition (synthesis) of elements [16a10-15], 1 the consequence is inevitable: the paradigmatic form of true speech must be that of the "statement of one thing concerning another thing [legein ti kata tinos]" [17a25]. 2 Here it matters little whether the relation of speech to things is grasped as one of imitation or constitution, reproduction or production; it matters little, moreover, whether the things at issue--that which language means--are understood as sensible objects or supersensuous entities, material beings or logical idealities. In every utterance, speech, by virtue of its very form, is necessarily capable of being dissolved into those things of which it speaks. Indeed, the Aristotelian principle of analysis (literally, "loosening up") demands this [End Page 22] dissolution as the end toward which all speech, insofar as it is both assertive and predicative, ultimately tends. Language is thus posited only in order to be effaced; its specific constituents are identified only to be returned, in the end, to the world of things. When Augustine writes, in a lapidary formula at the start of his De doctrina christiana, that "things are learned by signs [res per signa discuntur]" [1.2.2.20], he simply summarizes what is already stated in the Aristotelian locus classicus: words, the elements of language, function in the service of things; when words show what exists, their task is accomplished.Werner Hamacher's works constitute perhaps the most powerful contemporary attempt to delineate and interrogate this aporetic structure, by which language, in its classical philosophical and theoretical elaboration, is simultaneously constructed and effaced, identified as such and destituted of all propriety. The implications of this structure, which are both logical and metaphysical, extend not only to the Aristotelian, but even to the most modern theories of language and its operation. "At the end of every semantic theory of language and its truth," Hamacher thus writes in Premises: Essays on Philosophy and Literature from Kant to Celan, "stands the aporetic verdict: language does not speak; it has nothing to say" [P 338; EV 325]. When language is determined by its "semantic and referential functions," we read, it follows that at "the end and thus the site of its destination, it no longer means anything and no longer refers to anything" [P 338; EV 325]. If Hamacher's texts often take as their point of departure contemporary doctrines of literary production and language, it is because, in the field of literary studies, the invocation of the semantic determination of language thus leads thought to eliminate the very element that might have been its subject of examination: language. The one discipline that might have resisted the apophantic dissolution of language proves itself not to be, as the German term has it, a "science of literature [Literaturwissenschaft]" but, rather, "more or less clandestinely a science against literature" [P... (shrink)

We distinguish “language readiness” from “having language” and outline a hypothesis for the evolution of the language-ready brain and language involving seven stages: S1: grasping; S2: a mirror system for grasping; S3: a simple imitation system for grasping, shared with the common ancestor of human and chimpanzee; S4: a complex imitation system for grasping; S5: protosign, breaking through the fixed repertoire of primate vocalizations to yield an open repertoire for communication; S6: protospeech, the open-ended production and perception of (...) sequences of vocal gestures, without these sequences constituting a full language; and S7: a process of cultural evolution in Homo sapiens yielding full human languages. The present paper will examine the subhypothesis that protosign formed a scaffolding for protospeech, but that the two interacted with each other in supporting the evolution of brain and body that made Homo sapiens “language-ready”. (shrink)

Rendell and Whitehead have drawn attention to some striking cetacean behaviour patterns. However, the claims for are premature. Weak examples of cetacean social learning do not, in sum, provide strong evidence for culture. Other terms, such as social learning, vocal learning, imitation, and tradition may be applied in some cases without resorting to more complex and controversial terms.

This work deals with Mollā Gūrānı̄’s critique (d. 813/1488) of Qāḍı̄ al-Bayḍawı̄ (d. 596/1200) and Zamakhsharı̄ (d. 538/1144). The Fātiḥ̣a and Baqara sūras in his manuscript tafsı̄r “Ghāyat al-Amānı̄” are chosen as the texts to examplify Mollā Gūrānı̄’s critique. His criticism is mostly related to language, qirāʾa (recitation and vocalization of Qur’ānic text), conceptual meaning and disagreement in interpretations of the Qur’ānic verses in question. Gūrānı̄ primarly criticisez Qāḍı̄ due to his reputation among Ottoman scholars. Guranı̄ has not only criticized (...) Kādı̄ and Zamahsharı̄ in the commentary of the surahs Fātiḥ̣a and Baqara but also Taftāzānı̄ and Kavāshı̄. This clearly shows thah he is a well-versed scholar in researching especially in comperative analysis. In this study, our investigation is limited to, however, Zemakhsharı̄ and Qāḍı̄. This stuyd shows that Zemakhsharı̄ is strictly bound to Ahl al-Sunnah. Moreover, the hadith reports are considerably important for him in understanding and interpreting the Qur’ānic verses. He closely follows the interpretive traditions of early Muslim scholars, especially on the matters that Muslim scholars had an argeemnet.Summary: This study discusses the criticism of Mollā Gūrānı̄ (d. 813/1488), one of the Ottoman commentary scholars, against Qāḍı̄ al-Bayḍāwı̄ (d. 685/1286) and Zamakhsharı̄ (d. 538/1144). The two Qur’ānic Surahs Fātiḥ̣a and Baqara are chosen from his critiques in a manuscript of his commentary called Ghāyat al-Amānı̄. Mollā Gūrānı̄’s manuscript is registered in Sulaymāniye Library, Dāmād Ibrāhı̄m Pasha Section at number 146 and consists of 352 pages in total. This copy is one of the oldest among other its existent copies. The main reason of our preference of this copy is that it is both legible and at the end of the book (the farāgh part), it writes that it was proofread by his author himself and that handwriting notes at the margins of the pages belonged to the author. We have examined this copy by comparing another copy which is again in the Sulaymāniye Library, Haji Maḥmūd Efendı̄ section at number 162, consisting of 484 pages in total, comparatively. We have examined critiques of 41 verses in total from Fātiḥ̣a and Baqara surahs.Gūrānī’s critiques of Zamakhsharı̄ and Qāḍı̄ are too wide to be discussed within the limits of an article. Therefore, we have tried to briefly introduce these critiques. While presenting the commentators views, we tried to make their inexplicit expressions clear and furthermore elaborate their purposes by making use of some other resources. We have to say that we also used bracketed explanatory statements while giving commentators opinions.Most of the critiques of Gūrānı̄ are aimed at Qāḍı̄ since the latter’s commentary was one of the favourite ones among Ottoman intellectual circles. Therefore, in writing his commentary manuscript, Gūrānı̄ ambivalently both followed and criticized Qāḍı̄’s commentary. When Fātiḥ̣a and Baqara surahs are used as a base, it is evident that Gūrānı̄’s commentary Ghāyat al-Amānı̄ is a reason-based (dirāyah) in line with those of Zamakhsharı̄ and Qāḍı̄ as commentary methodology. Gūrānı̄ modelled himself so much on Qāḍı̄ in this commentary of his that it seems as an abridged copy of Qāḍı̄’s. Ghāyat al-Amānı̄ as a commentary example of Ottoman era shows that the commentary methodology of the time did not change even four hundred years after Zamakhsharı̄.It is possible to say that Gūrānı̄ criticized Zamakhsharı̄ and Qāḍı̄ in this commentary in a meticulous manner. Although many of his critiques are disputable, his rigorous approach to texts and his courage of critique, instead of imitative attitude, of Qāḍı̄’s commentary, which was held in high esteem in madrasahs of the time, and of commentary of Zamakhsharı̄, who was competent in Arabic language, is of great significance. Gūrānı̄ used a comparative scientific methodology and was a prominent. When his commentary manuscript examined it can be seen that it was not only Zamakhsharı̄ and Qāḍı̄ but also Taftāzānı̄ (d. 792/1390) and Kavāshı̄ (d. 680/1281) who got their shares from his critiques. Most of Gūrānı̄’s critiques were on the subtleties of Arabic language. He sometimes expressed his criticism using Arabic grammar rules and sometimes rhetoric requirements. His other critiques involved topics such as, conceptual meaning, verses integrity, recitation and some interpretations of verses that he disagreed with. His critical method was based on the integrity of the Qurʾān, interpretive traditions, Salaf’s views and logical contradictions. We ought to mention that Gūrānı̄ showed his strong commitment to his predecessors and scholars for matters on which they had consensus. We comprehend this commitment on occasions when he rejected the claim that, for instance, a given form of qirā’a from Salaf was wrong according to Arabic grammar in favour of Salafı̄ reciter. The aim of this study is to give an idea about commentary understandings and methods of commentators in Ottoman era and to make contribution to introducing Gūrānı̄, who criticized Zamakhsharı̄ and Qāḍı̄, two prominent commentators competent in their field, to researchers in terms of his attribute as a critic. An earlier study on his critiques made in this commentary of Gūrānı̄ only covered his critiques of Qāḍı̄ for some of his interpretations in Fātiḥ̣a and Baqara surahs. Therefore, another important factor leading to this study was to cover all critiques he made against the views and comments of both Zamakhsharı̄ and those shared by Zamakhsharı̄ and Qāḍı̄. Hence, this study aims to contribute to the fiedl as an analytical study or a translation made by researchers on this concise and handwritten manuscript.Some conspicuous features are seen in Gūrānı̄’s critiques. As he pointed out in his reviews, in case of subjects with availability of narratives (rivāyah) and of suitability of the literal meaning of verses, he did not prefer allegorical interpretation. He gives the impression that he based his reviews on Ahl al-Sunnah, and he took pains to follow Ashaʿrı̄te school of thought. Although Gūrānı̄, did not see harm in sharing the same things with Zamakhsharı̄, opposing Qāḍı̄ as regards Arabic language, he was always in opposition with Zamakhsharı̄ in relation to commitment to sectarian view and Ḥadı̄ths. It can also be said that Gūrānı̄ did not favour esoteric-allusive commentary style.It can also be said that Gūrānı̄ had sound and deep knowledge in the field of Kalām. This can be deduced from his considering Qāḍı̄’s arguments to criticize Muʿtazila as insubstantial and sometimes from his criticism of Qāḍı̄ for his careless selection of phrases he used in theological issues. Meanwhile, Gūrānı̄ criticized some views which did not belong to Qāḍı̄. For example, it is seen that he criticized Qāḍı̄ for his citation of an opinion through the phrase “it is said that” as if it was his own view by writing an annotation on the margin that it was Qāḍı̄ who said it. In our opinion, the most important thing that the critique of Gūrānı̄ shows is his scholarly identity and his outspoken character of enunciating of what he believed scholarly and conscientiously. This, also, shows the existence of critical thinking in Ottoman scholarship tradition. (shrink)

Scholarship on Quintus Smyrnaeus has long moved past the point where he is considered nothing more than an ‘artificial imitator of a bygone age’. Rather, scholars generally recognize the dynamism of Quintus’ relation to Homer, as can be seen in the subtitles of two volumes on Quintus published in the past few years:Engaging Homer in Late AntiquityandTransforming Homer in Second Sophistic Epic. Even in passages that are clearly modelled on passages in Homer, Quintus is no longer seen as slavishly imitating (...) but as creatively rereading and re-imagining his works. Calum Maciver, perhaps Quintus’ most vocal champion, sums this approach up nicely, arguing that ‘Quintus imitates, manipulates, comments on, differs from, in sum reads, Homer’, and describing the epic as ‘a demanding text with intricate possibilities for interpretation’. And Maciver is hardly alone in this; various studies in recent years have shown that Quintus’ use of Homer reflects his own values and preoccupations, and those of his society. (shrink)

While influential works since the 1970s have widely assumed that imitation is an innate skill in both human and non-human primate neonates, recent empirical studies and meta-analyses have challenged this view, indicating other forms of reward-based learning as relevant factors in the development of social behavior. The visual input translation into matching motor output that underlies imitation abilities instead seems to develop along with social interactions and sensorimotor experience during infancy and childhood. Recently, a new visual stream has (...) been identified in both human and non-human primate brains, updating the dual visual stream model. This third pathway is thought to be specialized for dynamics aspects of social perceptions such as eye-gaze, facial expression and crucially for audio-visual integration of speech. Here, we review empirical studies addressing an understudied but crucial aspect of speech and communication, namely the processing of visual orofacial cues and its integration with vocal auditory cues. Along this review, we offer new insights from our understanding of speech as the product of evolution and development of a rhythmic and multimodal organization of sensorimotor brain networks, supporting volitional motor control of the upper vocal tract and audio-visual voices-faces integration. (shrink)

This article explores interpersonal functions of emotional mimicry under the absence versus the presence of visual contact between the interacting partners. We review relevant literature and stress that previous studies on the role of emotional mimicry were focused on imitative responses to facial displays. We also show that the rules explaining why people mimic facial expressions may be inapplicable when visual signals are unavailable (e.g., people attending an online meeting have their cameras off). Overall, our review suggests that emotional mimicry (...) functionally adapts to whether the perceiver and the expresser can see each other. We, therefore, argue that blocking visual contact between them may provide insight into emotional mimicry's social functions, thereby clarifying its role in fostering affiliation and emotional understanding. (shrink)

Le désir d'imiter Dieu n'est pas nécessairement sous-tendu par un délire ou une dérisoire présomption. Il met plutôt en tension deux réalités irréductibles. D'un côté, la réalité d'une vocation de l'humain à répondre à plus haut que lui et à trouver la voie de son accomplissement dans la reconnaissance d'un don qui le transforme. De l'autre côté, l'irréductibilité du statut créaturel, et donc de la finitude qui implique une distance toujours maintenue, même si, par instants, certains spirituels sont convaincus de (...) vivre une union allant jusqu'à la coïncidence de l'âme et de Dieu même. C'est cette tension que ce livre explore en considérant spécialement le christianisme occidental sur la longue durée, mais en jetant également des coups de sonde du côté du platonisme et du néoplatonisme, du judaïsme et du christianisme oriental. À travers cette tension se joue toute la question de la relation entre le fini et l'infini"--Page 4 of cover. (shrink)

The era of sustainable transformation has witnessed an increase in corporate environmental, social, and governance (ESG) disclosure waves. Using Chinese A-share listed companies from 2016 to 2021 as a sample, this study adopted textual analysis and machine-learning techniques to analyze ESG reports and explore the imitation behavior of ESG disclosures in emerging Chinese markets for the first time. The results show imitation behavior exists in corporate ESG disclosures from the perspective of group association. Regarding the imitation object, (...) enterprises tend to choose the peer average level as a reference rather than the best enterprise in the same industry, which reveals the inherent law that enterprises' ESG disclosures are satisfied with compliance rather than championship. In terms of effects, the ESG-mimetic isomorphic pressure has no incremental information effect but has an efficiency optimization effect. Furthermore, the imitation intensity and impact effects of ESG disclosure behavior exhibit heterogeneity owing to differences in properties, sales growth rates, and external attention. This study expands the motivation for corporate ESG disclosure behavior and enriches the empirical evidence for institutional isomorphism. (shrink)

This chapter contains sections titled: Introduction I Peters on Ritual in Education II R. S. Peters on Ritual and Imitation: An Assessment Future Directions References.

Modeling of evolution and development of language has principally utilized mature units of spoken language, phonemes and words, as both targets and inputs. This approach cannot address the earliest phases of development because young infants are unable to produce such language features. We argue that units of early vocal development—protophones and their primitive illocutionary/perlocutionary forces—should be targeted in evolutionary modeling because they suggest likely units of hominin vocalization/communication shortly after the split from the chimpanzee/bonobo lineage, and because early development (...) of spontaneous vocal capability is a logically necessary step toward vocal language, a root capability without which other crucial steps toward vocal language capability are impossible. Modeling of language evolution/development must account for dynamic change in early communicative units of form/function across time. We argue for interactive contributions of sender/infants and receiver/caregivers in a feedback loop involving both development and evolution and propose to begin computational modeling at the hominin break from the primate communicative background. (shrink)

There exists substantial cultural variation in how emotions are expressed, but there is also considerable evidence for universal properties in facial and vocal affective expressions. This is the first empirical effort examining the perception of vocal emotional expressions across cultures with little common exposure to sources of emotion stimuli, such as mass media. Shuar hunter-horticulturalists from Amazonian Ecuador were able to reliably identify happy, angry, fearful and sad vocalizations produced by American native English speakers by matching emotional spoken (...) utterances to emotional expressions portrayed in pictured faces. The Shuar performed similarly to English speakers who heard the same utterances in a content-filtered condition. These data support the hypothesis that vocal emotional expressions of basic affective categories manifest themselves in similar ways across quite disparate cultures. (shrink)