Volume XXIX contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2012-13. The papers feature Plato's Republic and Timaeus, examine Aristotle on generation, analogy and method, and analyze Proclus on first principles.

Shape and slant judgments of rotated or frontoparallel ellipses were elicited from three groups of 10 subjects. A masking stimulus was introduced to control processing time. Backward masking trials were presented with interstimulus intervals of 0, 25, and 50 msec, Reduction of processing time altered shape judgments in the direction of projective shape and slant judgments in the direction of frontoparallelness. This finding is consistent with the shape-slant invariance hypothesis. In order to study the effects of processing load, one group (...) of subjects was given prior knowledge of the kind of judgment to be made on each trial, one group had no prior knowledge, and a third group made both judgments on each trial. The effects of the processing load manipulation were interpreted in terms of the role of attention in perceptual encoding. Consistent with previous findings, allocation of attention did not affect perceptual encoding. (shrink)

The Gestalt psychologists adopted a set of positions on mind-body issues that seem like an odd mix. They sought to combine a version of naturalism and physiological reductionism with an insistence on the reality of the phenomenal and the attribution of meanings to objects as natural characteristics. After reviewing basic positions in contemporary philosophy of mind, we examine the Gestalt position, characterizing it m terms of phenomenal realism and programmatic reductionism. We then distinguish Gestalt philosophy of mind from instrumentalism and (...) computational functionalism, and examine Gestalt attributions of meaning and value to perceived objects. Finally, we consider a metatheoretical moral from Gestalt theory, which commends the search for commensurate description of mental phenomena and their physiological counterparts. (shrink)

Twelve subjects provided shape and orientation judgments for a set of projectively equivalent, variously rotated rectangles under three viewing conditions—monoptic, dichoptic, and binocular—with and without the presence of a pattern mask. In the absence of the mask, partial constancy was exhibited under the first two conditions and near perfect constancy under the binocular condition. Orientation was discriminated. Presence of the mask produced projective shape matching and diminished orientation discrimination. It is argued that the site of masking was postchiasmal, and the (...) results are related to previous work with pattern masking of projectively equivalent ellipses. (shrink)

We examine a number of investigations of perceptual economy or, more specifically, of minimum tendencies and minimum principles in the visual perception of form, depth, and motion. A minimum tendency is a psychophysical finding that perception tends toward simplicity, as measured in accordance with a specified metric. A minimum principle is a theoretical construct imputed to the visual system to explain minimum tendencies. After examining a number of studies of perceptual economy, we embark on a systematic analysis of this notion. (...) We examine the notion that simple perceptual representations must be defined within the "geometric constraints" provided by proximal stimulation. We then take up metrics of simplicity. Any study of perceptual economy must use a metric of simplicity; the choice of metric may be seen as a matter of convention, or it may have deep theoretical and empirical implications. We evaluate several answers to the question of why the visual system might favor economical representations. Finally, we examine several accounts of the process for achieving perceptual economy, concluding that those which favor massively parallel processing are the most plausible. (shrink)

This article seeks the origin, in the theories of Ibn al-Haytham (Alhazen), Descartes, and Berkeley, of two-stage theories of spatial perception, which hold that visual perception involves both an immediate representation of the proximal stimulus in a two-dimensional ‘‘sensory core’’ and also a subsequent perception of the three dimensional world. The works of Ibn al-Haytham, Descartes, and Berkeley already frame the major theoretical options that guided visual theory into the twentieth century. The field of visual perception was the first area (...) of what we now call psychology to apply mathematics, through geometrical models as used by Euclid, Ptolemy, Ibn al-Haytham, and Descartes (among others). The article shows that Kepler’s discovery of the retinal image, which revolutionized visual anatomy and entailed fundamental changes in visual physiology, did not alter the basic structure of theories of spatial vision. These changes in visual physiology are advanced especially in Descartes' Dioptrics and his L'Homme. Berkeley develops a radically empirist theory vision, according to which visual perception of depth is learned through associative processes that rely on the sense of touch. But Descartes and Berkeley share the assertion that there is a two-dimensional sensory core that is in principle available to consciousness. They also share the observation that we don't usually perceived this core, but find depth and distance to be phenomenally immediate, a point they struggle to accommodate theoretically. If our interpretation is correct, it was not a change in the theory of the psychology of vision that engendered the idea of a sensory core, but rather the introduction of the theory into a new metaphysical context. (shrink)

This article addresses gender differences in laughter and smiling from an evolutionary perspective. Laughter and smiling can be responses to successful display behavior or signals of affiliation amongst conversational partners—differing social and evolutionary agendas mean there are different motivations when interpreting these signals. Two experiments assess perceptions of genuine and simulated male and female laughter and amusement social signals. Results show male simulation can always be distinguished. Female simulation is more complicated as males seem to distinguish cues of simulation yet (...) judge simulated signals to be genuine. Females judge other female’s genuine signals to have higher levels of simulation. Results highlight the importance of laughter and smiling in human interactions, use of dynamic stimuli, and using multiple methodologies to assess perception. (shrink)

Experimenters claim some nonhuman mammals have metacognition. If correct, the results indicate some animal minds are more complex than ordinarily presumed. However, some philosophers argue for a deflationary reading of metacognition experiments, suggesting that the results can be explained in first-order terms. We agree with the deflationary interpretation of the data but we argue that the metacognition research forces the need to recognize a heretofore underappreciated feature in the theory of animal minds, which we call Unity. The disparate mental states (...) of an animal must be unified if deflationary accounts of metacognition are to hold and untoward implications avoided. Furthermore, once Unity is acknowledged, the deflationary interpretation of the experiments reveals an elevated moral standing for the nonhumans in question. (shrink)

Erotic Wisdom provides a careful reading of one of Plato's most beloved dialogues, the Symposium, which explores the nature and scope of human desire (erôs). Gary Alan Scott and William A. Welton engage all of the dialogue's major themes, devoting special attention to illuminating Plato's conception of philosophy. In the Symposium, Plato situates philosophy in an intermediate (metaxu) position--between need and resource, ignorance and knowledge--showing how the very lack of what one desires can become a guiding form of contact (...) with the objects of human desire. The authors examine the concept of intermediacy in relation both to Platonic metaphysics and to Plato's moral psychology, arguing that philosophy, for Plato, is properly understood as a kind of "being in-between," as the love of wisdom (philosophia) rather than the possession of it. (shrink)

In a backward masking paradigm Epstein, Hatfield, and Muise (1977) found that presentation of a frontoparallel pattern mask caused the perceived shape of elliptical figures which were rotated in depth to conform to a projective shape function. The current study extended the masking function by examining the effect of a mask which was partially or wholly cotemporal with the target. The study also assessed the functional equivalence of the masking treatment and the conventional treatment for minimizing depth information. Reports of (...) perceived shape and perceived orientation were obtained under three conditions: binocular without mask, binocular with mask, monocular without mask. Under the first condition, perceived shape conformed to objective shape and perceived orientation was proportional to objective orientation. Under the latter two conditions, perceived shape was in very close agreement to projective shape and the two functions did not differ. Orientation was underestimated greatly under both conditions. We concluded that the effect of the mask on perceived shape is mediated by its effect on encoding of orientation information, although an additional effect on the subsequent stage of shape-slant integration cannot be excluded. (shrink)

_A lively and highly readable commentary on one of Plato’s most beloved dialogues._.

Market relationships built on trust and governed by commonly accepted ethical norms are generally viewed as economically positive and beneficial to both parties; however, such relationships are occasionally the situs of a variety of unexpected and ethically questionable behaviours. This study examines the narratives provided by participants who share their experience as an exchange partner in a market relationship or as a close observer of an exchange partner in a market relationship to identify the use of short-term deceptions and ethics (...) defections in managing these relationships. The data demonstrate a number of instances in which one exchange partner is willing to deceive another. Situations identified include deceiving current customers, new customers, current suppliers, governmental bodies, and employees and managers for the purposes of: protecting an existing relationship, pursuing a new relationship, ensuring product or service quality, and exerting control over a relationship. This research develops a general analytic framework for the occurrence of deception and defection from ethical norms in market relationships from elements of the study participants' narrative reports. This framework can be used by future researchers to design studies that examine the specific antecedents of these behaviours. (shrink)

Market relationships built on trust and governed by commonly accepted ethical norms are generally viewed as economically positive and beneficial to both parties; however, such relationships are occasionally the situs of a variety of unexpected and ethically questionable behaviours. This study examines the narratives provided by participants who share their experience as an exchange partner in a market relationship or as a close observer of an exchange partner in a market relationship to identify the use of short‐term deceptions and ethics (...) defections in managing these relationships. The data demonstrate a number of instances in which one exchange partner is willing to deceive another. Situations identified include deceiving current customers, new customers, current suppliers, governmental bodies, and employees and managers for the purposes of: protecting an existing relationship, pursuing a new relationship, ensuring product or service quality, and exerting control over a relationship. This research develops a general analytic framework for the occurrence of deception and defection from ethical norms in market relationships from elements of the study participants' narrative reports. This framework can be used by future researchers to design studies that examine the specific antecedents of these behaviours. (shrink)

Cybersecurity research often describes people as understanding internet security in terms of metaphorical mental models (e.g., disease risk, physical security risk, or criminal behavior risk). However, little research has directly evaluated if this is an accurate or productive framework. To assess this question, two experiments asked participants to respond to a statistical reasoning task framed in one of four different contexts (cybersecurity, plus the above alternative models). Each context was also presented using either percentages or natural frequencies, and these tasks (...) were followed by a behavioral likelihood rating. As in previous research, consistent use of natural frequencies promoted correct Bayesian reasoning. There was little indication, however, that any of the alternative mental models generated consistently better understanding or reasoning over the actual cybersecurity context. There was some evidence that different models had some effects on patterns of responses, including the behavioral likelihood ratings, but these effects were small, as compared to the effect of the numerical format manipulation. This points to a need to improve the content of actual internet security warnings, rather than working to change the models users have of warnings. (shrink)

To show how the case of Mary Shelley’s Victor Frankenstein brings light to the ethical and moral issues raised in Institutional Review Board protocols, we nest an imaginary IRB proposal dated August 1790 by Victor Frankenstein within a discussion of the importance and function of the IRB. Considering the world of science as would have appeared in 1790 when Victor was a student at Ingolstadt, we offer a schematic overview of a fecund moment when advances in comparative anatomy, medical experimentation (...) and theories of life involving animalcules and animal electricity sparked intensive debates about the basic principles of life and the relationship between body and soul. Constructing an IRB application based upon myriad speculations circulating up to 1790, we imagine how Victor would have drawn upon his contemporaries’ scientific work to justify the feasibility of his project, as well as how he might have outlined the ethical implications of his plan to animate life from “dead” tissues. In Mary Shelley’s Frankenstein, Victor failed to consider his creature’s autonomy, vulnerability, and welfare. In this IRB proposal, we show Victor facing those issues of justice and emphasize how the novel can be an important component in courses or workshops on research ethics. Had Victor Frankenstein had to submit an IRB proposal tragedy may have been averted, for he would have been compelled to consider the consequences of his experiment and acknowledge, if not fulfill, his concomitant responsibilities to the creature that he abandoned and left to fend for itself. (shrink)

The term “perceptual constancy” was used by the Gestalt theorists in the early part of the twentieth century (e.g., Koffka 1935, 34, 90) to refer to the tendency of perception to remain invariant over changes of viewing distance, viewing angle, and conditions of illumination. This tendency toward constancy is remarkable: every change in the viewing distance, position, and illumination is necessarily accompanied by a change in the local proximal (retinal) stimulation, and yet perception remains relatively stable. The tendency toward perceptual (...) constancy encouraged the Gestalt theorists to look beyond local proximal stimulation in grounding their theories of perception. In the ensuing decades, much has been learned about the constancies. Evidence for this assertion may be found in the contributions to the current volume as well as in earlier volumes (e.g., Epstein 1977; Walsh and Kulikowsky 1998). These advances notwithstanding, significant questions remain open. Our aim here is to note some advances and specify some open questions. (shrink)

I respond to Ned Block’s claim that it is ridiculous to suppose that consciousness is a cultural construction based on language and learned in childhood. Block is wrong to dismiss social constructivist theories of consciousness on account of it being ludicrous that conscious experience is anything but a biological feature of our animal heritage, characterized by sensory experience, evolved over millions of years. By defending social constructivism in terms of both Julian Jaynes’ behaviorism and J.J. Gibson’s ecological psychology, I draw (...) a distinction between the experience or what-it-is-like of nonhuman animals engaging with the environment and the secret theater of speechless monologue that is familiar to a linguistically competent human adult. This distinction grounds the argument that consciousness proper should be seen as learned rather than innate and shared with nonhuman animals. Upon establishing this claim, I defend the Jaynesian definition of consciousness as a social–linguistic construct learned in childhood, structured in terms of lexical metaphors and narrative practice. Finally, I employ the Jaynesian distinction between cognition and consciousness to bridge the explanatory gap and deflate the supposed hard problem of consciousness. (shrink)

This volume, the twenty-seventh year of published proceedings, contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2010-11. The papers treat thinkers ranging from Philolaus, Plato and Aristotle, to Plotinus.

This volume, the twenty-eighth year of published proceedings, contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2011-12. The papers treat thinkers ranging from early Greek cosmology, to several on Plato and one each on Aristotle and Plotinus.

Volume 33 contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2015-16. Works: Parmenides’ _Poem, Posterior Analytics_ and _Poetics_, Gorgias. Topics: liar’s paradox, syllogism and nature, authorial freedom, _ousia_ and the true and good.

This volume, the twenty-fifth year of published proceedings, contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2008-9. The papers treat thinkers ranging from Heraclitus and Anaxagoras, to Socrates, Plato and Aristotle, and to Chyrsippus and Proclus.

This volume, the twenty-sixth year of published proceedings, contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2009-10. The papers treat thinkers ranging from Parmenides, Plato and Aristotle, to Themistius.

Volume XXIX contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2012-13. The papers feature Plato's Republic and Timaeus , examine Aristotle on generation, analogy and method, and analyze Proclus on first principles.

Volume XXX contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2013-14. They feature: Philebus , Republic , Theaetetus and Alcibiades I , Sophist , and Symposium , Apology and Phaedo , on pleasure, knowledge, the city, and the philosopher.

Volume 31 contains papers and commentaries presented to the Boston Area Colloquium in Ancient Philosophy during academic year 2014-15. Works: _Symposium_, _Republic_, _Euthyphro_, Proclus’s _De malorum_, _Sophist_, _Statesman_; topics: eros, tripartite soul, what the gods love, evil, Homeric motifs.

The volume contains papers and commentaries presented to the _Boston Area Colloquium in Ancient Philosophy_ during the academic year 2015-16. Works: Phaedrus, Republic, Apology, Laws, Seventh Letter, Stoic texts. Topics: Stoic blending, reciprocal eros, perception in tripartite soul, Stoic identity, Plato’s politics and events.

In this essay, we provide an overview of how production systems can be re-engineered to improve the welfare of the animals involved. At least three potential options exist: engineering their environments to better fit the animals, engineering the animals themselves to better fit their environments, and eliminating the animals from the system by growing meat in vitro rather than on farms. The morality of consuming animal products and the conditions under which agricultural animals are maintained remain highly contentious, and when (...) concerns about animal welfare are coupled with concerns about sustainability and global food security, the problem of welfare in animal agriculture constitutes “a wicked problem,” because it is unlikely that any proposed solution will simultaneously address all the issues of concern. In the final section of this essay, we offer some observations on how debate over reforms in animal agriculture could proceed going forward. (shrink)

As John Henry Newman reflected on 'The Idea of a University' more than a century and a half ago, Bradley C. S. Watson brings together some of the nation's most eminent thinkers on higher education to reflect on the nature and purposes of the American university today. Their mordant reflections paint a picture of the American university in crisis. This book is essential reading for thoughtful citizens, scholars, and educational policymakers.

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