This bookreview discusses Piccolino and Wades' book on Galileo's impact on contemporary perception science.

We show that true colors as defined by Chevreul (1839) produce unsuspected simultaneous brightness induction effects on their immediate grey backgrounds when these are placed on a darker (black) general background surrounding two spatially separated configurations. Assimilation and apparent contrast may occur in one and the same stimulus display. We examined the possible link between these effects and the perceived depth of the color patterns which induce them as a function of their luminance contrast. Patterns of square-shaped inducers of a (...) single color (red, green, blue, yellow, or grey) were placed on background fields of a lighter and a darker grey, presented on a darker screen. Inducers were always darker on one side of the display and brighter on the other in a given trial. The intensity of the grey backgrounds varied between trials only. This permitted generating four inducer luminance contrasts, presented in random order, for each color. Background fields were either spatially separated or consisted of a single grey field on the black screen. Experiments were run under three environmental conditions: dark-adaptation, daylight, and rod-saturation after exposure to bright light. In a first task, we measured probabilities of contrast, assimilation, and no effect in a three-alternative forced-choice procedure (background appears brighter on the ‘left’, on the ‘right’ or the ‘same’). Visual adaptation and inducer contrast had no significant influence on the induction effects produced by colored inducers. Achromatic inducers produced significantly stronger contrast effects after dark-adaptation, and significantly stronger assimilation in daylight conditions. Grouping two backgrounds into a single one was found to significantly decrease probabilities of apparent contrast. Under the same conditions, we measured probabilities of the inducers to be perceived as nearer to the observer inducers. These, as predicted by Chevreul’s law of contrast, were determined by the luminance contrast of the inducers only, with significantly higher probabilities of brighter inducers to be seen as nearer, and a marked asymmetry between effects produced by inducers of opposite sign. Implications of these findings for theories which attempt to link simultaneous induction effects to the relative depth of object surfaces in the visual field are discussed. (shrink)

Can we identify potential long-term consequences of digitalisation on public health? Environmental studies, metabolic research, and state of the art research in neurobiology point towards the reduced amount of natural day and sunlight exposure of the developing child, as a consequence of increasingly long hours spent indoors online, as the single unifying source of a whole set of health risks identified worldwide, as is made clear in this review of currently available literature. Over exposure to digital environments, from abuse to (...) addiction, now concerns even the youngest (ages 0 to 2) and triggers, as argued on the basis of clear examples herein, a chain of interdependent negative and potentially long-term metabolic changes. This leads to a deregulation of the serotonin and dopamine neurotransmitter pathways in the developing brain, currently associated with online activity abuse and/or internet addiction, and akin to that found in severe substance abuse syndromes. A general functional working model is proposed under the light of evidence brought to the forefront in this review. (shrink)

Evolution and geometry generate complexity in similar ways. Evolution drives natural selection while geometry may capture the logic of this selection and express it visually, in terms of specific generic properties representing some kind of advantage. Geometry is ideally suited for expressing the logic of evolutionary selection for symmetry, which is found in the shape curves of vein systems and other natural objects such as leaves, cell membranes, or tunnel systems built by ants. The topology and geometry of symmetry is (...) controlled by numerical parameters, which act in analogy with a biological organism’s DNA. The introductory part of this paper reviews findings from experiments illustrating the critical role of two-dimensional (2D) design parameters, affine geometry and shape symmetry for visual or tactile shape sensation and perception-based decision making in populations of experts and non-experts. It will be shown that 2D fractal symmetry, referred to herein as the “symmetry of things in a thing”, results from principles very similar to those of affine projection. Results from experiments on aesthetic and visual preference judgments in response to 2D fractal trees with varying degrees of asymmetry are presented. In a first experiment (psychophysical scaling procedure), non-expert observers had to rate (on a scale from 0 to 10) the perceived beauty of a random series of 2D fractal trees with varying degrees of fractal symmetry. In a second experiment (two-alternative forced choice procedure), they had to express their preference for one of two shapes from the series. The shape pairs were presented successively in random order. Results show that the smallest possible fractal deviation from “symmetry of things in a thing” significantly reduces the perceived attractiveness of such shapes. The potential of future studies where different levels of complexity of fractal patterns are weighed against different degrees of symmetry is pointed out in the conclusion. (shrink)

Protests that target firms’ socially irresponsible behavior are increasingly organized via digital media. This study uses two methods to investigate the effects that online protests and mitigating firm responses have on shareholders’ and consumers’ evaluation. The first method is a financial analysis that includes an event study which measures the effect of online protests on the target firm’s share price, as well as an investigation of the boundary effects of protest characteristics. The second method is an online experiment that assesses (...) the effect of an online protest campaign on consumers’ perception and purchase intention, as well as any mitigating effects that a firm’s response may have. Contrary to recent studies suggesting that participation in online protests is only token support without any substantive effects, our results show that online protests do hurt. Firms can expect to suffer financial, reputational, and sales damage when an online protest campaign mobilizes consumers successfully. We also show that online protests are more likely to take firms by surprise than offline protests. Firms can exacerbate or reduce the damage by their response. We find that although firms may repair the damage to consumers’ purchase intentions, the negative effects on a brand’s image are harder to rectify. The results have valuable implications for protest organizers and managers faced with the task of responding. (shrink)

By reviewing most of the neurobiology of consciousness, this article highlights some major reasons why a successful emulation of the dynamics of human consciousness by artificial intelligence is unlikely. The analysis provided leads to conclude that human consciousness is epigenetically determined and experience and context-dependent at the individual level. It is subject to changes in time that are essentially unpredictable. If cracking the code to human consciousness were possible, the result would most likely have to consist of a temporal pattern (...) code simulating long-distance signal reverberation and de-correlation of all spatial signal contents from temporal signals. In the light of the massive evidence for complex interactions between implicit (non-conscious) and explicit (conscious) contents of representation, the code would have to be capable of making implicit (non-conscious) processes explicit. It would have to be capable of a progressively less and less arbitrary selection of temporal activity patterns in a continuously developing neural network structure identical to that of the human brain, from the synaptic level to that of higher cognitive functions. The code’s activation thresholds would depend on specific temporal signal coincidence probabilities, vary considerably with time and across individual experience data, and would therefore require dynamically adaptive computations capable of emulating the properties of individual human experience. No known machine or neural network learning approach has such potential. (shrink)

Detecting quality in large unstructured datasets requires capacities far beyond the limits of human perception and communicability and, as a result, there is an emerging trend towards increasingly complex analytic solutions in data science to cope with this problem. This new trend towards analytic complexity represents a severe challenge for the principle of parsimony (Occam’s razor) in science. This review article combines insight from various domains such as physics, computational science, data engineering, and cognitive science to review the specific properties (...) of big data. Problems for detecting data quality without losing the principle of parsimony are then highlighted on the basis of specific examples. Computational building block approaches for data clustering can help to deal with large unstructured datasets in minimized computation time, and meaning can be extracted rapidly from large sets of unstructured image or video data parsimoniously through relatively simple unsupervised machine learning algorithms. Why we still massively lack in expertise for exploiting big data wisely to extract relevant information for specific tasks, recognize patterns and generate new information, or simply store and further process large amounts of sensor data is then reviewed, and examples illustrating why we need subjective views and pragmatic methods to analyze big data contents are brought forward. The review concludes on how cultural differences between East and West are likely to affect the course of big data analytics, and the development of increasingly autonomous artificial intelligence (AI) aimed at coping with the big data deluge in the near future. Keywords: big data; non-dimensionality; applied data science; paradigm shift; artificial intelligence; principle of parsimony (Occam’s razor) . (shrink)

Two universal functional principles of Grossberg’s Adaptive Resonance Theory decipher the brain code of all biological learning and adaptive intelligence. Low-level representations of multisensory stimuli in their immediate environmental context are formed on the basis of bottom-up activation and under the control of top-down matching rules that integrate high-level, long-term traces of contextual configuration. These universal coding principles lead to the establishment of lasting brain signatures of perceptual experience in all living species, from aplysiae to primates. They are re-visited in (...) this concept paper on the basis of examples drawn from the original code and from some of the most recent related empirical findings on contextual modulation in the brain, highlighting the potential of Grossberg’s pioneering insights and groundbreaking theoretical work for intelligent solutions in the domain of developmental and cognitive robotics. (shrink)

Victor Vasarely's (1906–1997) important legacy to the study of human perception is brought to the forefront and discussed. A large part of his impressive work conveys the appearance of striking three-dimensional shapes and structures in a large-scale pictorial plane. Current perception science explains such effects by invoking brain mechanisms for the processing of monocular (2D) depth cues. Here in this study, we illustrate and explain local effects of 2D color and contrast cues on the perceptual organization in terms of figure-ground (...) assignments, i.e. which local surfaces are likely to be seen as “nearer” or “bigger” in the image plane. Paired configurations are embedded in a larger, structurally ambivalent pictorial context inspired by some of Vasarely's creations. The figure-ground effects these configurations produce reveal a significant correlation between perceptual solutions for “nearer” and “bigger” when other geometric depth cues are missing. In consistency with previous findings on similar, albeit simpler visual displays, a specific color may compete with luminance contrast to resolve the planar ambiguity of a complex pattern context at a critical point in the hierarchical resolution of figure-ground uncertainty. The potential role of color temperature in this process is brought forward here. Vasarely intuitively understood and successfully exploited the subtle context effects accounted for in this paper, well before empirical investigation had set out to study and explain them in terms of information processing by the visual brain. (shrink)

Whole–exome sequencing (WES) has increased our ability to analyze large parts of the human genome, bringing with it a plethora of ethical, legal, and social implications. A topic dominating discussion of WES is identification of “secondary findings” (SFs), defined as the identification of risk in an asymptomatic individual unrelated to the indication for the test. SFs can have considerable psychosocial impact on patients and families, and patients with an SF may have concerns regarding genomic privacy and genetic discrimination. The Genetic (...) Information Nondiscrimination Act of 2008 (GINA) currently excludes protections for members of the military. This may cause concern in military members and families regarding genetic discrimination when considering genetic testing. In this report, we discuss a case involving a patient and family in which a secondary finding was discovered by WES. The family members have careers in the U.S. military, and a risk–predisposing condition could negatively affect employment. While beneficial medical management changes were made, the information placed exceptional stress on the family, who were forced to navigate career–sensitive “extra–medical” issues, to consider the impacts of uncovering risk–predisposition, and to manage the privacy of their genetic information. We highlight how information obtained from WES may collide with these issues and emphasize the importance of genetic counseling for anyone undergoing WES. (shrink)

Protests that target firms’ socially irresponsible behavior are increasingly organized via digital media. This study uses two methods to investigate the effects that online protests and mitigating firm responses have on shareholders’ and consumers’ evaluation. The first method is a financial analysis that includes an event study which measures the effect of online protests on the target firm’s share price, as well as an investigation of the boundary effects of protest characteristics. The second method is an online experiment that assesses (...) the effect of an online protest campaign on consumers’ perception and purchase intention, as well as any mitigating effects that a firm’s response may have. Contrary to recent studies suggesting that participation in online protests is only token support without any substantive effects, our results show that online protests do hurt. Firms can expect to suffer financial, reputational, and sales damage when an online protest campaign mobilizes consumers successfully. We also show that online protests are more likely to take firms by surprise than offline protests. Firms can exacerbate or reduce the damage by their response. We find that although firms may repair the damage to consumers’ purchase intentions, the negative effects on a brand’s image are harder to rectify. The results have valuable implications for protest organizers and managers faced with the task of responding. (shrink)

While some are currently debating whether time may or may not be an illusion, others keep devoting their time to the science of consciousness. Time as such may be seen as a physical or a subjective variable, and the limitations in our capacity of perceiving and analyzing temporal order and change in physical events definitely constrain our understanding of consciousness which, in return, constrains our conceptual under-standing of time. Temporal codes generated in the brain have been considered as the key (...) to insight into neural function and, ultimately, as potential neural substrates of consciousness itself. On the basis of cur-rent evidence and opinion from neuroscience and philosophy, we consider the interrelation between con-sciousness and time in the light of Hegel and Heidegger’s concepts of Sein (Being) and Zeit (Time). We suggest that consciousness can be defined in terms of a succession of psychological moments where we realize that we exist in, and are part of, a present moment in time. This definition places all other percep-tual or sensorial processes which may characterize phenomenal experience at a different level of analysis and centers the debate around consciousness on the fundamental identity link between awareness of the Ich (I) and awareness of what Heidegger termed Ursprüngliche Zeit (original time). We argue that human consciousness has evolved from the ability to be aware of, to remember, and to predict temporal order and change in nature, and that the limits of this capacity are determined by limits in the functional plasticity of resonant brain mechanisms. Although the conscious state of the Self is the ultimate expression of this evolution, it is devoid of any adaptive function as such. (shrink)

Although symmetry has been discussed in terms of a major law of perceptual organization since the early conceptual efforts of the Gestalt school (Wertheimer, Metzger, Koffka and others), the first quantitative measurements testing for effects of symmetry on processes of Gestalt formation have seen the day only recently. In this study, a psychophysical rating study and a “foreground”-“background” choice response time experiment were run with human observers to test for effects of bilateral symmetry on the perceived strength of figure-ground in (...) triangular Kanizsa configurations. Displays with and without bilateral symmetry, identical physically-specified-to-total contour ratio, and constant local contrast intensity within and across conditions, but variable local contrast polarity and variable orientation in the plane, were presented in a random order to human observers. Configurations with bilateral symmetry produced significantly stronger figure-ground percepts reflected by greater subjective magnitudes and consistently higher percentages of “foreground” judgments accompanied by significantly shorter response times. These effects of symmetry depend neither on the orientation of the axis of symmetry, nor on the contrast polarity of the physical inducers. It is concluded that bilateral symmetry, irrespective of orientation, significantly contributes to the, largely sign-invariant, visual mechanisms of figure-ground segregation that determine the salience of figure-ground in perceptually ambiguous configurations. (shrink)

Two universal functional principles of Grossberg’s Adaptive Resonance Theory [19] decipher the brain code of all biological learning and adaptive intelligence. Low-level representations of multisensory stimuli in their immediate environmental context are formed on the basis of bottom-up activation and under the control of top-down matching rules that integrate high-level long-term traces of contextual configuration. These universal coding principles lead to the establishment of lasting brain signatures of perceptual experience in all living species, from aplysiae to primates. They are re-visited (...) in this concept paper here on the basis of examples drawn from the original code and from some of the most recent related empirical findings on contextual modulation in the brain, highlighting the potential of Grossberg’s pioneering insights and groundbreaking theoretical work for intelligent solutions in the domain of developmental and cognitive robotics. (shrink)

The 18th-century Scottish ‘common sense’ philosopher Thomas Reid argued that perception can be distinguished on several dimensions from other categories of experience, such as sensation, illusion, hallucination, mental images, and what he called ‘fancy.’ We extend his approach to eleven mental categories, and discuss how these distinctions, often ignored in the empirical literature, bear on current research. We also score each category on five properties (ones abstracted from Reid) to form a 5 × 11 matrix, and thus can generate statistical (...) measures of their mutual dependencies, a procedure that may have general interest as illustrating what we can call ‘computational philosophy.’. (shrink)

Consciousness is known to be limited in processing capacity and often described in terms of a unique processing stream across a single dimension: time. In this paper, we discuss a purely temporal pattern code, functionally decoupled from spatial signals, for conscious state generation in the brain. Arguments in favour of such a code include Dehaene et al.'s long-distance reverberation postulate, Ramachandran's remapping hypothesis, evidence for a temporal coherence index and coincidence detectors, and Grossberg's Adaptive Resonance Theory. A time-bin resonance model (...) is developed, where temporal signatures of conscious states are generated on the basis of signal reverberation across large distances in highly plastic neural circuits. The temporal signatures are delivered by neural activity patterns which, beyond a certain statistical threshold, activate, maintain, and terminate a conscious brain state like a bar code would activate, maintain, or inactivate the electronic locks of a safe. Such temporal resonance would reflect a higher level of neural processing, independent from sensorial or perceptual brain mechanisms. (shrink)

Symmetry in biological and physical systems is a product of self-organization driven by evolutionary processes, or mechanical systems under constraints. Symmetry-based feature extraction or representation by neural networks may unravel the most informative contents in large image databases. Despite significant achievements of artificial intelligence in recognition and classification of regular patterns, the problem of uncertainty remains a major challenge in ambiguous data. In this study, we present an artificial neural network that detects symmetry uncertainty states in human observers. To this (...) end, we exploit a neural network metric in the output of a biologically inspired Self- Organizing Map Quantization Error (SOM-QE). Shape pairs with perfect geometry mirror symmetry but a non-homogenous appearance, caused by local variations in hue, saturation, or lightness within and/or across the shapes in a given pair produce, as shown here, a longer choice response time (RT) for “yes” responses relative to symmetry. These data are consistently mirrored by the variations in the SOM-QE from unsupervised neural network analysis of the same stimulus images. The neural network metric is thus capable of detecting and scaling human symmetry uncertainty in response to patterns. Such capacity is tightly linked to the metric’s proven selectivity to local contrast and color variations in large and highly complex image data. (shrink)

BACON.3 is a production system that discovers empirical laws. Although it does not attempt to model the human discovery process in detail, it incorporates some general heuristics that can lead to discovery in a number of domains. The main heuristics detect constancies and trends in data, and lead to the formulation of hypotheses and the definition of theoretical terms. Rather than making a hard distinction between data and hypotheses, the program represents information at varying levels of description. The lowest levels (...) correspond to direct observations, while the highest correspond to hypotheses that explain everything so for observed. To take advantage of this representation, BACON.3 has the ability to carry out and relate multiple experiments, collapse hypotheses with identical conditions, ignore differences to let similar concepts be treated as equal, and to discover and ignore irrelevant variables. BACON.3 has shown its generality by rediscovering versions of the ideal gas law, Kepler's third law of planetary motion, Coulomb's law, Ohm's law, and Galileo's laws for the pendulum and constant acceleration. (shrink)

Aquinas’s understanding of bodily resurrection can take two different directions. Either continuity of the soul alone is sufficient to reconstitute the same body as the pre-mortem body at the resurrection, or continuity of the matter of the pre-mortem body is also required. After arguing that Aquinas’s account of personal identity over time requires sameness of soul and sameness of body, I suggest that Aquinas’s two possible views on bodily resurrection are consistent with this account of personal identity and are both (...) plausible views for Aquinas to take. I then defend the possibility of the view that requires material continuity against certain objections which come from within Aquinas’s own philosophies of form, matter, and the elements. But the result is that Aquinas cannot consistently hold that material continuity hinges on the preservation of numerically the same material elements as the pre-mortem body. (shrink)

Computational models will play an important role in our understanding of human higher‐order cognition. How can a model's contribution to this goal be evaluated? This article argues that three important aspects of a model of higher‐order cognition to evaluate are (a) its ability to reason, solve problems, converse, and learn as well as people do; (b) the breadth of situations in which it can do so; and (c) the parsimony of the mechanisms it posits. This article argues that fits of (...) models to quantitative experimental data, although valuable for other reasons, do not address these criteria. Further, using analogies with other sciences, the history of cognitive science, and examples from modern‐day research programs, this article identifies five activities that have been demonstrated to play an important role in our understanding of human higher‐order cognition. These include modeling within a cognitive architecture, conducting artificial intelligence research, measuring and expanding a model's ability, finding mappings between the structure of different domains, and attempting to explain multiple phenomena within a single model. (shrink)

Ruth Myrtle Patrick was a pioneering ecologist and taxonomist whose extraordinary career at the Academy of Natural Sciences of Philadelphia spanned over six decades. In 1947, an opportunity arose for Patrick to lead a new kind of river survey for the Pennsylvania Sanitary Water Board to study the effects of pollution on aquatic organisms. Patrick leveraged her already extensive scientific network, which included ecologist G. Evelyn Hutchinson, to overcome resistance within the Academy, establish a new Department of Limnology, and (...) carry out the survey, which was a resounding success and brought much needed money to the Academy. As demand for her expertise grew among industrial companies, such as the chemical company DuPont, Patrick became more active in the world of applied science. She repurposed data and instruments from her river surveys to run new experiments, test ecological theories, and conduct long-term ecological studies. Through these studies, she advanced an argument that biologist Thomas Lovejoy dubbed the “Patrick principle,” the idea that the ecological health of a body of water could be measured by the relative abundance and diversity of species living there. Patrick was elected to the National Academy of Sciences in 1970, became a board member of DuPont in 1975, and received two of the most prestigious awards in ecology: the Eminent Ecologist Award from the Ecological Society of America in 1972 and the Tyler Ecology Award in 1975. This article analyzes Patrick’s unusual success in bridging the worlds of science and industry and her unusual ability to cross, and redefine, the perceived boundary between basic and applied fields in biology. It argues that Patrick’s position at the Academy, an institution of natural history that was both willing and able to accept money from industrial corporations, is key to understanding her success in, and influence on, the field of river ecology. (shrink)

Reading Kate Daloz's We Are as Gods at the dawn of the new age of Trump is just begging for an out-of-body experience. This may not be inappropriate. At a moment when a nihilistic form of antipolitics is consuming the nation, transmogrifying the world and its people into raw ore for extraction, and deriding any conception of public good or even common good, Daloz's stunning new history is a powerful reminder of the alternatives Americans once lived and the creative ways (...) in which they shaped community.The centerpiece of Daloz's account is a subtle portrayal of a network of communities and people that rippled out from Myrtle Hill, a thinly veiled pseudonym for a 1960s- and 1970s-era commune high in Vermont's... (shrink)

Drawing on new evidence from the Dewey archive, this paper traces how John Dewey conceived his Hegelian-inspired theory of mind and how he tested it in the 1930s by collaborating with infant experimentalist Myrtle McGraw in her pioneering studies of the ontogeny of consciousness and judgment. Her studies challenged behaviourism and maturationism, which advanced environmental and genetic theories of human development, by showing that infants possess consciousness and the judgment needed to guide their own development. -/- Dewey drew on (...) Darwinian evolution and neuroscience to transform the Hegelian phenomenology of being and becoming into psychological terms that would elucidate the role of mind, consciousness and judgment in human experience. Dewey believed that consciousness arises under conditions of uncertainty demanding ingenuity, self-confidence and a sense of balance. McGraw demonstrated how infants cope with uncertainty and the physical challenges posed by gravity and the biological forces of growth, by exploiting the contingencies of order and variation afforded by their experience of motor development. McGraw demonstrated how consciousness emerges through reciprocal processes of neural and behavioural interaction which make possible the introduction of novel changes in ontogeny. -/- This paper describes the extraordinary methods that McGraw devised, with Dewey's help, during the heyday of behaviourism and maturationism, to find a place for consciousness in human development. I contend that, while Dewey's theory of mind and McGraw's discoveries remain controversial and poorly understood, they are not merely of historical interest but approach the threshold of an integrated neurobiological and neurobehavioural understanding of consciousness. (shrink)

In his New Essays on Human Understanding, Leibniz presents an extended critical commentary on Locke’s Essay Concerning Human Understanding. Leibniz read some of Locke’s work in English and then, a few years later, the whole of it in French, a language in which he was more comfortable. Over a period of about two further years, on and off, he wrote his New Essays, which he finished at about the time Locke died and which was not published until about half a (...) century after Leibniz’s death. (He left them unpublished partly because they had been motivated by a hope of getting Locke to reply, and Locke’s death put an end to that; though his character made it a forlorn hope in any case.) The New Essays has been an important work: for one thing, Kant read it on its first appearance, and scholars say that this was a decisive event in his philosophical development. Anyway, given that this is one of Leibniz’s only two philosophical works of substantial book length, in all the torrent that poured from his pen, and given also that it is focused - critically but with respect and careful attentiveness - on the greatest classic of English philosophy, it is surprising that the New Essays had to wait until 1981 for a usable English translation.1 In 1896 there was published a sort of translation by A. G. Langley;2 but it is inaccurate far beyond the bounds of normal incompetence, as well as being grimly unreadable for stylistic reasons. As Chesterton once said about The Origin of Species, it is surprising how many people think they have read it, but I'll bet that nobody alive has slogged through the Langley version from cover to cover. It is a pity that the work was not decently available in English for nearly three centuries, because even for those who can read the French of, say, Descartes, Leibniz’s French is difficult. He reserved his native German for writings on history and politics, using French and Latin for philosophy and mathematics; presumably French was chosen for the New Essays because Leibniz wanted to respond to a popular work by a popular work.. (shrink)

My aim here is to raise a few questions concerning the problem of representation in scientific discovery computer programs. Representation, as Simon says in his paper, "imposes constraints upon the phenomena that allow the mechanisms to be inferred from the data". The issue is obviously barely outlined by Simon in his paper, while it is addressed in detail in the book by Langley, Simon, Bradshaw and Zytkow (1987), to which I shall refer in this note. Nevertheless, their analysis would (...) appear to leave open certain issues related to the nature of the "constraints" imposed by representation on problem solving strategies. (shrink)

As one of America’s "public intellectuals," John Dewey was engaged in a lifelong struggle to understand the human mind and the nature of human inquiry. According to Thomas C. Dalton, the successful pursuit of this mission demanded that Dewey become more than just a philosopher; it compelled him to become thoroughly familiar with the theories and methods of physics, psychology, and neurosciences, as well as become engaged in educational and social reform. Tapping archival sources and Dewey’s extensive correspondence, Dalton reveals (...) that Dewey had close personal and intellectual ties to scientists and scholars who helped form the mature expression of his thought. Dewey’s relationships with F. M. Alexander, Henri Matisse, Niels Bohr, Myrtle McGraw, and Lawrence K. Frank, among others, show how Dewey dispersed pragmatism throughout American thought and culture. (shrink)

Students systematically and deliberately apply rule‐based but erroneous algorithms to solving unfamiliar arithmetic problems. These algorithms result in erroneous solutions termed rational errors. Computationally, students' erroneous algorithms can be represented by perturbations or bugs in otherwise correct arithmetic algorithms (Brown & VanLehn, 1980; Langley & Ohilson, 1984; VanLehn, 1983, 1986, 1990; Young S O'Sheo, 1981). Bugs are useful for describing how rational errors occur but bugs are not sufficient for explaining their origin. A possible explanation for this is that (...) rational errors are the result of incorrect induction from examples. This prediction is termed the “induction hypothesis” (VanLehn, 1986). The purpose of the present study was to: (a) expand on post formulations of the induction hypothesis, and (b) use a new methodology to test the induction hypothesis more carefully than has been done previously. The first step involved teaching participants a new number system called NewAbacus, a written modification of the abacus system. The second step consisted of dividing them into different groups, where each individual received an example of only one port of the NewAbacus addition algorithm. During the third and final step, participants were instructed to solve both familiar and unfamiliar types of addition problems in NewAbacus. The induction hypothesis was supported by using both empirical and computational investigations. (shrink)

Here are some of the most important discoveries in the history of medicine: blood circulation (1620s), vaccination, (1790s), anesthesia (1840s), germ theory (1860s), X- rays (1895), vitamins (early 1900s), antibiotics (1920s-1930s), insulin (1920s), and oncogenes (1970s). This list is highly varied, as it includes basic medical knowledge such has Harvey’s account of how the heart pumps blood, hypotheses about the causes of disease such as the germ theory, ideas about the treatments of diseases such as antibiotics, and medical instruments such (...) as X-ray machines. The philosophy of medicine should be able to contribute to understanding of the nature of discoveries such as these. The great originators of the field of philosophy of science were all concerned with the nature of scientific discovery, including Francis Bacon (1960), William Whewell (1967), John Stuart Mill (1974), and Charles Peirce (1931-1958). The rise of logical positivism in the 1930s pushed discovery off the philosophical agenda, but the topic was revived through the work of philosophers such as Norwood Russell Hanson (1958), Thomas Nickles (1980), Lindley Darden (1991, 2006), and Nancy Nersessian (1984). Scientific discovery has also become an object of investigations for researchers in the fields of cognitive psychology and artificial intelligence, as seen in the work of Herbert Simon, Pat Langley, and others (Langley et al., 1987; Klahr, 2000). Today, scientific September 14, 2009 discovery is an interdisciplinary topic at the intersection of the philosophy, history, and psychology of science. The aim of this chapter is to identify patterns of discovery that illuminate some of the most important developments in the history of medicine. I have used a variety of sources to identify forty great medical discoveries (Adler, 2004; Friedman and Friedland, 1998; Science Channel, 2006; Strauss and Strauss, 2006).. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Feminist Studies 46, no. 1. © 2020 by Abby Minor 103 JUMP ROPE CHANT: A CURE FOR ALL KINDS OF STOMACH ACHES, ca. 2000 BCE–ca. 2000 CE Abby Minor Happy are those who stand in a field at night and hear the double rainbows land, or clap the gaps that RHYTHM makes, or shout to the beat of grasses; They are like trees planted by streams of water, which (...) yield their fruit in its season, & their leaps & their leaves & their feet do not wither, they leap up in the morning singing, in all that they do they chant, and jump, and are singing: “Blood root, hair pin, lupine, clover, watermints and cinnamon, a pencil, myrrh, poplar, juniper, copper water, whiskey, cotton root, snake root, savin, wire,  Clap your hands, all you peoples. —Psalm 47.1 104 Abby Minor wallflower, gunpowder, emeralds, myrtle, tonic of geranium, lace seeds, soap, bone stay, coltsfoot, catheters, quinine, a hoop bound with oil-silk, a hat pin, oak—” I chant a long time I chant from within a hollow place I chant all colors of cohosh Instantly as dawn clips green & white, I chant to dissolve separate parts I jump backwards and I chant So that you may bathe your feet in blood, it was in the Psalms, it’s what God does it might be a rain dance it will come to you like a beautiful cigar filled with fine leaves like the fine feet of a deer cleft in gold leaves Like rhythm a hair pin, rhythm a hat pin, rhythm a knitting hook, rhythm a nail RHYTHM makes my feet like the feet of a deer. I chant rosemary so assiduous I chant pennyroyal forever most poisonous I chant intransigence and double rainbows pop on the sidewalks of the cosmos, double Abby Minor 105 Dutch ropes spin like twin rivers, there I am planted like a tree by the water, like an outrider dropping fire into the ropes: I will kick up my heels seven times there will be a noise and the seed will fall out on the ground shouting, “Date palms, dancing, anise, trillium, turpentine, scissors, silphium, rum, cundums, pomegranate, pearlash, iron, foot baths, borax, birthwort, rue, wormwood, fern root, fig leaf, sneezing, a small ball of sheep’s wool, smart weed, brass, blackberries, goldbeaters, button hooks, hawthorn, womb veil, vinegar, saffron, glass—” If you try our hearts, RHYTHM, if you visit us by night; if I forget which is my left hand and which is your right— just let it be me; psalmist, you, a trace of blood. Me, muscle, 106 Abby Minor you, myrrh. Or you jumping, me rope. Me mirrorstep, you leave your dark prints on the light. Me ambush, you flood. Me bloodthirsty, you a smaller blood. You bloodthirsty, me myrrh. Me fortress, you a tent for the sun. Me splendor, you go on and on. Me hat pin, me flood. You poetry, me a clapping tree, or me poetry and you nothing at all. I say to RHYTHM, “You are my Rhythm, I have no song apart from you and I could never tell just where the sole leaves the sidewalk and turns into the smallest lit pause popped, suspended above shoe shadow; I could never say whether I’m the jumper picking up her knees or the turner planted so still save for her hands— and what pilots her hands, pilot, if not you, if not her hands? If not the offbeat, the bows of light we pattern, Rhythm which is both the rivet and what’s held: like rhythm a hair pin, rhythm a hat pin, rhythm a knitting hook, rhythm a nail Abby Minor 107 RHYTHM makes my feet like the feet of a deer. Now I chant the bitter melon fruit who lights up darkness and my feet do not grow weary writing RHYTHM on the sidewalk lighting incense in the bathtub filled with gin in which I lay chanting like the singers in front, like the musicians last, like the girls between them playing tambourines: Rhythm make a riot Rhythm eat a bee Rhythm use a chicken feather & make a joyful noise Praise Rhythm with mint & astringents with spearmints & syringes with pipes, pen handles, mercury... (shrink)

The compilers of the Hippocratic gynaecological treatises often recommend sexual intercourse as part of treatments for women’s diseases. In addition, they often prescribe the use of ingredients that are obvious phallic symbols. This paper argues that the use of sexual therapy in the Hippocratic gynaecological treatises was more extended than previously considered. The Hippocratic sexual therapies involve a series of vegetable ingredients that were sexually connoted in antiquity, but have since lost their sexual connotations. In order to understand the sexual (...) signification of products such as myrtle and barley, one must turn to other ancient texts, and most particularly to Attic comedies. These comedies serve here as a semiotic guide in decoding the Hippocratic gynaecological recipes. However, the sexual connotations attached to animal and vegetable ingredients in these two genres have deeper cultural and religious roots; both genres exploited the cultural material at their disposal. (shrink)

Throughout the turbulent early years of the fifteenth century, English magnates were having more than usual difficulty gaining access to, or remaining in, their own graves. Like Hitchcock's Harry, they kept being moved around. One of Henry IV's first acts upon acceding to the throne was to move Thomas, duke of Gloucester, to a better location in Westminster Abbey. After defeating Henry Hotspur at Shrewsbury, Henry IV first permitted his burial but then disinterred him and displayed his body suspended between (...) two millstones to prove he was really dead. Consumed with a sense of his own sinfulness, Henry IV eschewed the Westminster burial dictated for him by tradition and chose to lie in Canterbury instead. And of course the remains of Henry IV's victim, Richard II, lay out of place for thirteen years at Langley abbey before the new king, Henry V, arranged his reburial in his previously commissioned sepulchre in the Abbey of St. Peter, Westminster. (shrink)

In lieu of an abstract, here is a brief excerpt of the content: Five Poems DEBORAH WARREN Bugonia hic vero subitum dictu mirabile monstrum aspiciunt, liquefacta boum per viscera toto stridere apes utero et ruptis effervere costis. —Vergil, Georgics IV The covert’s dark, but Aristaeus sees —beyond it, in the oleandered meadow, walking to her wedding with her maids— Eurydice, as sweet as early windfall apples to the gods of the bitter dead. She runs, from shifting shade to sun to (...) shade until, in a shock of sudden sun, she sways, blinded, blundering into an adder’s kiss, and while the bridegroom waits by the bridal bed, she waits to be undressed by worms instead. But Aristaeus pays for the assault. The mead-gods visit on his apiaries wax-moth, mites, foulbrood and chalk-disease until an oracle orders a hekatomb: after nine days the myrtle-nymphs perform a miracle, and out of the carcases crawl fat new sun-furred drones to work the comb, a gift of the mead-gods who, with the poet, praise the teams of bright collaborating bees as little Romans—parvos Quirites. arion 27.1 spring/summer 2019 And what about Eurydice? The swarm goes humming on, a small Rome in a hive. The story’s not about Eurydice’s second chance, or whether she’ll survive. Eurydice’s a minor character; she’s only one girl, sui generis. Besides, no cattle-trick exists for her. The gods can let the apiaries thrive and armies—even empires—endure; one girl’s more complicated to replace. 44 five poems The Tithonus Club We can begin our visit with the Day Room where, in wheelchairs, some with canes or walkers, members sit: a fraternity so ancient that the confrères mostly ignore each other (club tradition). The dues are paid in decades; no one has an outstanding balance—Sir? Whoa, steady, there! Sit down... yes. Here’s your blanket. The badge of membership—the club regalia? Laminated ceremonial bracelets bear the motto Do Not Resuscitate (legend which, in practice, is seldom honored). Eleven-thirty, gentlemen; lunch is served, and now a little toast while the television mesmerizes the aides: Messieurs, your health! Deborah Warren 45 Aphrodite at the Old-Age Home —for Aphrodite Kalogeris “Honey,” the night nurse said to Aphrodite, “let me fix your bib. Look, Aphrodite! Here’s your juice and crackers, Aphrodite! “She doesn’t speak a blessed word of English,” the night nurse told us, “but she understands as good as if we spoke to her in Greek.” Aphrodite’s ears were as grotesque as the pore-coarse nose that bloomed across her face, but she heard her name: When Aphrodite rose and, beatific, dreamed across the room, traversing a happiness none of us could hear, she spoke a language older than herself but still her own—a dialect of beauty able to translate the fetid air. 46 five poems Climbing Etna We’d see the lava, nights, from the town square, as if the sun—an egg of fire—broke at dusk, threading its incandescent yolk down a mountain hanging in black air. Every night we’d scan the dark horizon looking for those streaks, and every night they took a while to find, however bright: Etna, it seemed, had spent the evening rising off the earth, to hover even higher, as if the mountain meant not to be found. And then, today, we ran the flows to ground, climbing up to the rolling burns of fire— closer, into the shimmering air and hiss that glanced up from the thick and red-flecked river —until our soles were smoking. But the lava sang, inside the mountain: Come, discover the fire’s origin and genesis; more—the heart of the world, in its enceinte of blind white heat. Seeing the lava course wasn’t enough, or watching the rock decant the sun; what brought us up here was the force— the hot loins—of a lightning god as dark as thunder; and, like Eve, like Semele, we wanted to approach. But there’s a spark, a jewel older than geology: stop shy of it—of finding the fire’s source, of closing in on what you shouldn’t see. Deborah Warren 47 Human Sucking strength... (shrink)

Charles Darwin is generally credited with having formulated the first systematic attempt to explain the evolutionary origins and function of the expression of emotions in animals and humans. His ingenious theory, however, was burdened with popular misconceptions about human phylogenetic heritage and bore the philosophical and theoretical deficiencies of the brain science of his era that his successors strove to overcome. In their attempts to rectify Darwin?s errors, William James, James Mark Baldwin and John Dewey each made important contributions to (...) a theory of emotion, which attempted to put it on a more secure philosophical and scientific footing. My contention is that Dewey and his collaborator, infant experimentalist Myrtle McGraw, succeeded where their contemporaries failed. They pointed the way out of the morass of recapitulationism, and showed how a developmental theory of consciousness, mind and emotion could be formulated that avoided the epistemological and ontological pitfalls of Darwin?s theory. Drawing on an extensive body of research from contemporary experimental studies of infant development, this essay attempts to put the questions raised by these historical figures about the structure, function and value of emotions in a theoretical framework. A developmental theory is proposed about the complex, interacting neurobiological and neurobehavioral factors that contribute to human emotional development. This theory identifies the possible relationships among emotions, consciousness and mind and how their co-development influences the capacity of young children to form moral judgments. (shrink)

Building Better Health Care Leadership for Canada explains the development and implementation of the Executive Training in Research Application program. Managed and funded by the Canadian Health Services Research Foundation in partnership with the Canadian Medical Association, the Canadian Nursing Association, and the Canadian College of Health Care executives, EXTRA is a two-year national fellowship program that uses the principles of adult learning theory as well as practical projects to educate senior health care leaders in making more consistent use of (...) research evidence in their management roles. Fellows apply the theory learned in residency sessions and educational activities to projects within their home organizations. The authors identify the imperative for better use of evidence, outline the core elements of the curriculum, and capture the real-world experience of regional leaders and fellows involved in making specific changes informed by research-based evidence within their organization. Contributors include Jean-Louis Denis, Terrence Sullivan, Owen Adams, Malcolm Anderson, Lynda Atack, Robert Bell, Sam G Campbell, Sylvie Cantin, Ward Flemons, Dorothy Forbes, J. Sonja Glass, Paula Goering, Karen Golden-Biddle, Jeffrey S. Hoch, Paul Lamarche, Ann Langley, John N. Lavis, Jonathan Lomas, Margo Orchard, Raynald Pineault, Brian D. Postl, Christine Power, Trish Reay, Jean Rochon, Denis A. Roy, Andrea Seymour, Samuel B. Sheps, Micheline Ste-Marie, Nina Stipich, David Streiner, Carl Taillon, and Muriah Umoquit. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:GENDER AND THE PRIESTHOOD OF CHRIST: A THEOLOGICAL REFLECTION BENEDICT M. ASHLEY, 0.P. Aquinas Institute of Theology St. Louis, Missouri I. Does "Patriarchy" Explain the Tradition? HE CONGREGATION for the Doctrine of the Faith, n its 1976 Declaration on the Question of the Admission f Wonien to the Ministerial Priesthood, based its negative response primarily on tradition.1 For many this argument 1 Inter Insigniores (Oct. 15, 1976, AAS 69 (...) [1977]), Origins 6, 33 (Feb. 3, 1977) : 518-531. For a general bibliography on women's studies see Patricia K. Ballou, Women: A Bibliography of Bibliographies, 2nd ed. (Boston: G. K. Hall, 1986). For select bibliography pro and con on the present topic see note 92, p. 560 of my Theologies of the Body: Humanist and Christian (St. Louis: Pope John Center, 1985) and Wendell E. Langley, S.J. and Rosemary J ermann, " Women and the ministerial priesthood: An annotated bibliography," Theology Digest 29 :329-42 (Winter '81). Strong cases against ordination are made by Louis Bouyer, W onzan in the Church, tr. by Marilyn Techert [Epilogue by Hans Urs von Balthasar and Essay by C. S. Lewis, "Priestesses in the Church"] (San Francisco: Ignatius Press, 1979) ; Manfred Hauke, Women in the Priesthood? A Systematic Analysis in the Light of the Order of Creation and Redemption, tr. by David Kipp (San Francisco: Ignatius Press, 1988); L. Ligier, "Women and the ministerial priesthood," Origins, 7:694-702 (April 20, 1978); and Patrick Dunn, Priesthood: A Re-Examination of the Roman Catholz'.c Theology of the Presbyterate (Staten Island, NY: Alba House, 1990), pp. 173-196. Strong cases for ordination are made by Ida Raming, The Exclusion of Women from Priesthood: Divine Law or Sex Discrimination, tr. by Norman R. Adams (Meutchen, NJ: Scarecrow Press, 1976) ; Haye von der Meer, Women Priests in the Catholic Chitrch: A Theological -Historical Investigation, tr. by Arlene and Leonard Swidler (Philadelphia : Temple University Press, 1973) ; George Tavard, Woman in Christian Tradition (Notre Dame: University of Notre Dame Press, 1973) ; Karl Raimer, "Priestertum der Frau," Stimmen der Zeit, 195 :291-301 (May 1977) ; Joseph Komonchak, " Theological Questions on the Ordination of Women," Catholic Mind 75 CJan. 1977) : 13-28; Carroll Stuhlmueller, C. P., ed., Women and Priesthood: Future Directions (Collegeville, MN: Liturgical Press, 1978); and Elizabeth Schussler Fiorenza, In Memory of Her: A Feminist Theological Reconstruction of Christian Origins (New York: Crossroad, 1983). 343 344 BENEDICT Mo ASHLEY, OoPo fails to persuade" It seems obvious to them that this " tradition " merely reflects the " patriarchalism " of the Jewish and pagan milieu of the early Church" The Declaration anticipated this objection when it pointed out (a) that Jesus was counter-cultural in many respects, especially in his attitude toward women; (b) a better explanation for the tradition can be found in the reality (res) which the sacrament of ordination symbolizes, namely, that the priest acts ini persona Christi capitis ecclesiae" Thus the essential role of a Christian priest is to represent Christ present and acting in his Church as its male Head" The Congregation formulated its conclusion cautiously: "The Church, in fidelity to the example of the Lord, does not consider herself authorized to admit women to priestly ordination." 2 Thus no other opinion may be followed in practice, and if bishops or theologians raise questions about the meaning of the tradition they must not trivialize its importance nor arouse illusory expectations of change. Final judgment on the matter can only pertain to the magisterium. In what follows I will not explore the argument from tradition as such, but only the supporting argument from symbolism, in an attempt to fill in certain steps which it seems to me the Declaration passed over. Nor will I deal here with other secondary arguments against the Declaration's conclusion, particular the pragmatic argument that since Christians have a right to the Eucharist, the decline of male priestly vocations in many secularized countries justifies the ordination of women" H the Church has no power to ordain women validly, obviously that argument, however practically attractive, is beside the point2 2 Inter Insigniores, last paragraph of the Introduction. 3 The members of a local church have a " right " to the Eucharist only if they... (shrink)

This new translation of Leibniz's long-neglected magnum opus is eminently readable. As such it is likely to replace the Langley translation as the standard English version. Hopefully it will attract to this philosophic classic the attention it so richly merits--on its own account, because of its impact on Kant, and its continued service as a generative source of much of the European philosophic tradition of thought.

The peripheral nervous system has classically been separated into a somatic division composed of both afferent and efferent pathways and an autonomic division containing only efferents. J. N. Langley, who codified this asymmetrical plan at the beginning of the twentieth century, considered different afferents, including visceral ones, as candidates for inclusion in his concept of the “autonomic nervous system”, but he finally excluded all candidates for lack of any distinguishing histological markers. Langley's classification has been enormously influential in (...) shaping modern ideas about both the structure and the function of the PNS. We survey recent information about the PNS and argue that many of the sensory neurons designated as “visceral” and “somatic” are in fact part of a histologically distinct group of afferents concerned primarily autonomic function. These afferents have traditionally been known as “small dark” neurons or B-neurons. In this target article we outline an association between autonomic and B-neurons based on ontogeny, cell phenotype, and functional relations, grouping them together as part of a common reflex system involved in homeostasis. This more parsimonious classification of the PNS, made possible by the identification of a group of afferents associated primarily with the ANS, avoids a number of confusions produced by the classical orientation. It may also have practical implications for an understanding of nociception, homeostatic reflexes, and the evolution of the nervous system. (shrink)

The introduction of the concept of capital inCapital– with the words ‘we find’ – has provoked a great deal of discussion about the precise relation between the categories of simple circulation and the concept of capital. In this article, I argue that Marx derives the concept of capital by way of an analysis of the immanent contradictions of money, and that this dialectical derivation can be understood as a conceptual movement in which the concepts of money and capital progressively change (...) their modal status. Furthermore, I examine the development of this transition to capital throughout Marx’s writings from the period 1857 to 1872, arguing that the same arguments can be found in all the relevant writings. Finally, the article provides a critical review of the literature on the transition to capital. (shrink)

This article aims to highlight why R. S. Peters' conceptual analysis of ‘education’ was such an important contribution to the normative field of philosophy of education. In the article, I do the following: 1) explicate Peters' conception of philosophy of education as a field of philosophy and explain his approach to the philosophical analysis of concepts; 2) emphasize several (normative) features of Peters' conception of education, while pointing to a couple of oversights; and 3) suggest how Peters' analysis might be (...) used to reinvigorate a conversation on one central educational aim—that of how we might educate citizens for the 21st century. (shrink)

Cicero's praise of Caesar in thePro Marcelloof September 46b.c.e.has been much discussed for its sincerity or otherwise. Here I would like to point out some unobserved literary colour which may make some contribution to the argument, namely Cicero's subtle evocation of Hercules in describing the achievements of the victorious Caesar. Such an analogy is not unlikely in the context of Roman military image-making: Sulla in 78b.c.e.and Crassus and Pompey in 70b.c.e.had earlier encouraged connections with Hercules in analogous victorious contexts, and (...) similar comparisons are later made between the foreign conquests of Augustus and those of Hercules in both Virgil and Horace. (shrink)

This comprehensive and important volume includes contributions by activists, journalists, lawyers and scholars from twenty-one countries. The essays map the directions the movement for women's rights is taking--and will take in the coming decades--and the concomittant transformation of prevailing notions of rights and issues. They address topics such as the rapes in former Yugoslavia and efforts to see that a War Crimes Tribunal responds; domestic violence; trafficking of women into the sex trade; the persecution of lesbians; female genital mutilation; and (...) reproductive rights. (shrink)