Science of Consciousness, Miscellaneous

There is considerable confusion surrounding the notion of consciousness. This confusion can be partially resolved by clarifying the referents of the word 'consciousness'. Doing so, however, reveals a more insidious problem, namely, the role played by personal beliefs in understanding consciousness. In particular, as revealed by a comprehensive survey, such beliefs range along a material- transcendent dimension, with the choice of notions of consciousness corresponding to materialist, conservatively transcendent, or extraordinarily transcendent positions. Further empirical research has revealed that those with (...) more transcendent beliefs tend to have a more rational and curious approach to the world than those with more materialist beliefs. And, indeed, transcendent beliefs are also associated with greater intelligence. Although the possibility of a developmental sequence from materialist to transcendent beliefs is suggested, given the nature of fundamental beliefs, it does not appear that reconciliation between them is possible. Thus, although the confusion surrounding the study of consciousness can be clarified, the situation giving rise to the confusion cannot be eliminated. (shrink)

Philosophical Psychology, Volume 0, Issue 0, Page 1-5, Ahead of Print.

Abstract An attempt is made to examine the main principles that underlay the ?Rhinean? school of parapsychology. Five such principles are discussed: (1) that psi can best be assessed using quantitative measures and forced?choice tests; (2) that psi is a function of the unconscious with the implication that objective performance alone is important, not the state of mind of the subject; (3) that psi ability is, to some degree, present in everyone; (4) that only those problems deserve attention for which (...) an unambiguous answer is attainable, with the implication that survival research should be shelved indefinitely and (5) that psi is non?physical. These five principles are then reviewed from our present vantage point and all are found to require qualification to a greater or lesser extent. Some critics, however, want to go further and allege that Rhine led psychical research into a blind alley and that the time has come to revert to the earlier investigative tradition. This, we contend, is defeatist, the more especially since the advent of computers has greatly extended the scope and power of the experimental approach. Despite its inherent difficulties, it remains the indispensable mainstay of our continuing efforts to make sense of the paranormal. (shrink)

In agreement with Blair, I favor the idea of dissociative patterns in cognitive performance, even more when it comes to development. However, such dissociations are present not only between fluid cognition and general intelligence, but also within fluid cognition itself. Heterogeneity of executive attention, even when indexed with a single paradigm, is further discussed in relation to anterior cingulate cortex. (Published Online April 5 2006).

Aggleton & Brown argue that the function of the hippocampus and perirhinal cortex can be dissociated along a spatial/nonspatial dimension. They further suggest that this division corresponds to a distinction between episodic and recognition memory. An analysis of the data, however, fails to support the underlying dissociation.

In the present paper, we first argue that it is critical for humans to forget; that is, to have some means of preventing out-of-date information from interfering with the recall of current information. We then argue that the primary means of accomplishing such adaptive updating of human memory is retrieval inhibition: Information that is rendered out of date by new learning becomes less retrievable, but remains at essentially full strength in memory as indexed by other measures, such as recognition and (...) word-fragment completion. We conclude with a speculation that certain unconscious influences of prior events may, in fact, be stronger if those events were to be forgotten rather than to be remembered. (shrink)

Quartz & Sejnowski's target article concentrates on the development of a number of neural parameters, especially neuronal processes, in the mammalian brain. Data on learning-related changes in spines and synapses in the developing avian brain are consistent with a constructivist interpretation. The issue of an integration of selectionist and constructivist views is discussed.

Evidence coming from several studies into memory and awareness during general anesthesia suggests that in surgical patients who seem to be adequately anesthetized , some form of cognitive functioning is preserved. This finding has important implications both for clinical practice and for memory research. In order to give the methodological background of the present situation in this field of research, this article deals, on the basis of recent experiments, with important methodological aspects of studies into perception and memory during general (...) anesthesia. (shrink)

Contrary to Perruchet & Vinter's self-organizing consciousness (SOC) model, subliminal mere exposure (SME) research indicates that stimuli perceived without awareness produce robust effects. Moreover, SME effects are significantly stronger than mere exposure effects produced by clearly recognized stimuli. The SOC model must be revised to accommodate findings from studies that use affect-based outcome measures.

Philosophical Psychology, Volume 0, Issue 0, Page 1-5, Ahead of Print.

Acknowledg ment is made to the Editors for permission to include these papers in the present volume. FRINTFD IN l.

SHORT ABSTRACT: A number of accounts of the relationship between third-person mindreading and first-person metacognition are compared and evaluated. While three of these accounts endorse the existence of introspection for propositional attitudes, the fourth (defended here) claims that our knowledge of our own attitudes results from turning our mindreading capacities upon ourselves. The different types of theory are developed and evaluated, and multiple lines of evidence are reviewed, including evolutionary and comparative data, evidence of confabulation when self-attributing attitudes, phenomenological evidence (...) of “unsymbolized thinking”, data from schizophrenia, and data from autism. (shrink)

This response defends the view that human metacognition results from us turning our mindreading capacities upon ourselves, and that our access to our own propositional attitudes is through interpretation rather than introspection. Relevant evidence is considered, including that deriving from studies of childhood development and other animal species. Also discussed are data suggesting dissociations between metacognitive and mindreading capacities, especially in autism and schizophrenia.

Three experiments investigated level of processing effects on a variety of direct and indirect memory tasks, in the context of a processing theory of dissociations. Subjects studied words in five encoding conditions and received one of ten memory tests. In Experiment 1, four tests previously classified as conceptual showed a robust LOP effect, as did a direct perceptual test of graphemic cued recall. An indirect perceptual word fragment completion test was unaffected by LOP. Experiment 2 showed that a new indirect (...) version of a graphemic cued test was not affected by LOP. In Experiment 3, guided by a generation/recognition model, we constructed three new direct tests in which subjects identified words that were graphemically, phonologically, or semantically similar to studied words. The three tests differed in their sensitivity to study conditions, but LOP had no effect in any case, despite the involvement of deliberate conscious recollection. Contemporary explanatory frameworks couched as dichotomies do not provide an adequate account of the results. It seems necessary instead to specify the types of information activated by each encoding condition, the types of information required by each test, and how encoding and retrieval processes are modified by task instructions. (shrink)

Three experiments examined repetition priming for meaningful environmental sounds in a sound stem identification paradigm using brief sound cues. Prior encoding of target sounds together with their associated names facilitated subsequent identification of sound stems relative to nonstudied controls. In contrast, prior exposure to names alone in the absence of the environmental sounds did not prime subsequent sound stem identification performance at all . Explicit and implicit memory were dissociated such that sound stem cued recall was higher following semantic than (...) nonsemantic encoding, whereas sound priming was insensitive to manipulations of depth encoding . These results extend the findings of long-term repetition priming into the auditory nonverbal domain and suggest that priming for environmental sounds is mediated primarily by perceptual processes. (shrink)

We have shown that FEF lesion-induced extinction could be compensated for by changing the relative temporal onsets of two targets presented on either side of the midline. Monkeys were trained to make saccades to either of two identical visual stimuli presented with various stimulus onset asynchronies (SOA). In intact animals the targets were chosen with equal probability when they appeared simultaneously. After unilateral FEF lesions an SOA of 67–116 msec had to be introduced, with the contralesional target appearing first, to (...) obtain equal probability choice. With a smaller target separation, averaging saccades occurred with highest frequency at similar SOAs. Our findings suggest that neglect may be attributable to more time being required in the damaged hemisphere for converting sensory information into motor responses. (shrink)

Some data concerning visual illusions are hardly compatible with the perception–action model, assuming that only the perception system is influenced by visual context. The planning–control dichotomy offers an alternative that better accounts for some controversy in experimental data. We tested the two models by submitting the patient I. G. to the induced Roelofs effect. The similitude of the results of I. G. and control subjects favoured Glover's model, which, however, presents a paradox that needs to be clarified.

Griffiths and Machery (2008) argue that innateness is a ?folk biological? notion, which, as such, has no useful reconstruction in contemporary biology. If this is so, not only is it wrong to identify the vernacular notion with the precise theoretical concept of canalization, but worse, it would appear that many of the putative scientific claims for particular competences and capacities being innate are simply misplaced. The present paper challenges the core substantive claim of Griffiths and Machery's position, namely, that innateness (...) understood on canalization lines as environment-independent development (somehow and to some degree) is a confused, outmoded notion. It will be contended that the modality-independence of language offers a prima facie case against Griffiths and Machery's general position. (shrink)

This paper discusses supportive neurological and social evidence for 'collective consciousness', here understood as a shared sense of being together with others in a single or unified experience. Mirror neurons in the premotor and posterior parietal cortices respond to the intentions as well as the actions of other individuals. There are also mirror neurons in the anterior insula and anterior cingulate cortices which have been implicated in empathy. Many authors have considered the likely role of such mirror systems in the (...) development of uniquely human aspects of sociality including language. Though not without criticism, Menant has made the case that mirror-neuron assisted exchanges aided the original advent of self-consciousness and intersubjectivity. Combining these ideas with social mirror theory it is not difficult to imagine the creation of similar dynamical patterns in the emotional and even cognitive neuronal activity of individuals in human groups, creating a feeling in which the participating members experience a unified sense of consciousness. Such instances pose a kind of 'binding problem' in which participating individuals exhibit a degree of 'entanglement'. (shrink)

I make three points about Searle’s philosophical work on consciousness and intentionality. First, I comment on Searle’s presentation and paper “The Problems of Consciousness.” I show that one of Searle’s philosophical claims about the relation between consciousness and intentionality appears to conflict with a demand he makes on acceptable empirical theories of the brain. Second, I argue that closer attention to the difference between conceptual connections and empirical connections corrects and improves Searle’s response to the so-called “Logical Connections” argument, the (...) argument that claims that mental states cannot be causes, since they are conceptually connected with actions. Third, I give a formulation of his Chinese Room argument that avoids some tempting responses. (shrink)

Abstract In this article, we investigate the merits of an enactive view of cognition for the contemporary debate about social cognition. If enactivism is to be a genuine alternative to classic cognitivism, it should be able to bridge the “cognitive gap”, i.e. provide us with a convincing account of those higher forms of cognition that have traditionally been the focus of its cognitivist opponents. We show that, when it comes to social cognition, current articulations of enactivism are—despite their celebrated successes (...) in explaining some cases of social interaction—not yet up to the task. This is because they (1) do not pay sufficient attention to the role of offline processing or “decoupling”, and (2) obscure the cognitive gap by overemphasizing the role of phenomenology. We argue that the main challenge for the enactive view will be to acknowledge the importance of both coupled (online) and decoupled (offline) processes for basic and advanced forms of (social) cognition. To meet this challenge, we articulate a dynamic embodied view of cognition. We illustrate the fruitfulness of this approach by recourse to recent findings on false belief understanding. Content Type Journal Article Pages 1-23 DOI 10.1007/s11097-011-9223-1 Authors Leon C. de Bruin, Department of Philosophy II, Ruhr-University Bochum, Universitätsstr. 150, 44801 Bochum, Germany Lena Kästner, Department of Philosophy II, Ruhr-University Bochum, Universitätsstr. 150, 44801 Bochum, Germany Journal Phenomenology and the Cognitive Sciences Online ISSN 1572-8676 Print ISSN 1568-7759. (shrink)

The philosophical world is indebted to Alvin Goldman for a number of reasons, and among them, his defense of the relevance of cognitive science for philosophy of mind. In Simulating minds , Goldman discusses with great care and subtlety a wide variety of experimental results related to mindreading from cognitive neuroscience, cognitive psychology, social psychology and developmental psychology. No philosopher has done more to display the resourcefulness of mental simulation. I am sympathetic with much of the general direction of Goldman’s (...) theory. I agree with him that mindreading is not a single system based on a single mechanism. And I admire his attempt to bring together the cognitive neuroscientific discovery of mirror system phenomena and the philosophical account of pretense within a unique theoretical framework of mental simulation. To do so, Goldman distinguishes two types of mindreading, respectively, based on low-level and high-level simulation. Yet, I wonder in what sense they are really two distinct processes. Here, I will confine myself largely to spelling out a series of points that take issue with the distinction between low-level and high-level mindreading. (shrink)

Conference Report: ASSC-5 conference at Duke, June 27-30, 2001.

The International Union of Psychological Science ('Union') co-hosted, with the Chinese Psychological Society its 28th International Congress of Psychology ('Congress'). The first Congress was held with the World's Fair in Paris in 1889. In recent decades, they have been held every four years in different parts of the world. The Union has member organizations from 67 nations, representing one half million psychologists. Pretty scary stuff!

Stemming from Uexkull’s fundamental concepts of Umwelt and Innenwelt as developed in the biosemiotic approach of Ferreira 2010, 2011, the present work models mathematically the semiosis of cognition and proposes an artificial cognitive architecture to be deployed in a robotic structure.

What is the connection between mirror processes and mindreading? The paper begins with definitions of mindreading and of mirroring processes. It then advances four theses: (T1) mirroring processes in themselves do not constitute mindreading; (T2) some types of mindreading (“low-level” mindreading) are based on mirroring processes; (T3) not all types of mindreading are based on mirroring (“high-level” mindreading); and (T4) simulation-based mindreading includes but is broader than mirroring-based mindreading. Evidence for the causal role of mirroring in mindreading is drawn from (...) intention attribution, emotion attribution, and pain attribution. Arguments for the limits of mirroring-based mindreading are drawn from neuroanatomy, from the lesser liability to error of mirror-based mindreading, from the role of imagination in some types of mindreading, and from the restricted range of mental states involved in mirroring. “High-level” simulational mindreading is based on enactment imagination, perspective shifts, or self-projection, which are found in activities like prospection and memory as well as theory of mind. The role of cortical midline structures in executing these activities is examined. (shrink)

Ronan Reilly's connectionist simulation both strengthens and advances the theoretical model presented in my 1991 target article, “Language, Tools, and Brain: The Ontogeny and Phylogeny of Hierarchically Organized Sequential Behavior.” Reilly has tested the whole ontogenetic model with a single simulation study explicitly planned for this purpose. His methodology has established that the various components of the theoretical model imply and are compatible with one another. It has also indicated how learning can actualize a pre-established ontogenetic sequence of combining lingusitic (...) symbols and objects. His simulation suggests that the acquisition of linguistic speech may be facilitated by experience with object manipulation, but not vice versa. This hypothesis can and should be empirically tested through research on behavioral development in the two domains. Finally, Reilly has simulated brain architecture, as well as neural learning. His simulation therefore shows how the development of language and object manipulation can result from an interaction between preprogrammed neural architecture (analogous to network architecture) and experience (analogous to the network's training cycles). (shrink)

The first two conferences and books have become touchstones for the field. This volume presents a selection of invited papers from the third conference.

We addressed the questions whether stimuli presented below the threshold of verbal awareness are nevertheless perceived and whether there are perceptual differences between the two cerebral hemispheres. Pictures of line drawn objects and animals were subliminally presented to each visual half-field for subsequent identification in a form as fragmented as possible. The performance of 40 healthy subjects was compared to that of 63 controls. Whereas identification performance after blank presentation in the experimental group did not differ from that of controls, (...) identification in a significantly more fragmented form was achieved after the presentation of the complete picture. This effect, however, occurred only after subliminal stimulation in the left visual field, i.e., of the right hemisphere. Our results show that pictures presented below the threshold of verbal awareness can be perceived, and that only the right hemisphere can perceive them and make use of the perception. It remains an open question whether this kind of hemispheric specialization represents a right hemisphere dominance for subliminal perception or reflects an inability of the left hemisphere to access and behaviorally use unaware percepts via fragmented picture identification, for which a right hemisphere advantage is known. (shrink)

The widespread use of brain imaging techniques encourages conceiving of neuroscience as the forthcoming “mindscience.” Perhaps surprisingly for many, this conclusion is still largely unwarranted. The present paper surveys various shortcomings of neuroscience as a putative “mindscience.” The analysis shows that the scope of mind (both cognitive and phenomenal) falls outside that of neuroscience. Of course, such a conclusion does not endorse any metaphysical or antiscientific stance as to the nature of the mind. Rather, it challenges a series of assumptions (...) that the undeniable success of neuroscience has fostered. In fact, physicalism is here taken as the only viable ontological framework – an assumption that does not imply that the central nervous system exhausts the physical domain. (shrink)