Both classical psychophysical work and recentfunctional imaging studies have suggested acritical role for the primary visual cortex(V1) in resolving the perceptual ambiguitiesexperienced during binocular rivalry. Here weexamine, by means of single-cell recordings andoptical imaging of intrinsic signals, thespatial characteristics of suppression elicitedby rival stimuli in cat V1. We find that the interocular suppression field of V1 neuronsis centred on the same position in space and isslightly larger (by a factor of 1.3) than theminimum response field, measured through thesame eye. Suppression (...) is always strongest at asingle position corresponding very closely tothe centre of the classical receptive field,and reduces responses through the other eye byup to 90% but typically around 40%. Thespatial pattern of interocular suppression, asrevealed by optical imaging, closely matchesthe cortical representation of the stimulus,which is being suppressed, both in terms of itsorientation and the eye of origin. Theseresults indicate that interocular suppressionis directly related to the functionalarchitecture of V1; it is probably caused bydirect inhibitory interactions betweenneighbouring cortical columns of oppositeocular dominance. (shrink)

The main question that Firestone & Scholl (F&S) pose is whether “what and how we see is functionally independent from what and how we think, know, desire, act, and so forth” (sect. 2, para. 1). We synthesize a collection of concerns from an interdisciplinary set of coauthors regarding F&S's assumptions and appeals to intuition, resulting in their treatment of visual perception as context-free.

BACKGROUND: Hallucinations and delusions that complicate Parkinson’s disease could lead to nursing home placement and are linked to increased mortality. Cognitive impairments are typically associated with the presence of hallucinations but there are no data regarding whether such a relationship exists with delusions. OBJECTIVE: We hypothesized that hallucinations would be associated with executive and visuospatial disturbance. An exploratory examination of cognitive correlates of delusions was also completed to address the question of whether they differ from hallucinations. METHODS: 144 PD subjects (...) completed a neuropsychological battery to assess cognition and the SAPS to examine psychosis. Correlational analyses assessed associations between hallucinations and delusions with cognitive domains. RESULTS: 48 subjects reported psychotic symptoms: 25 experienced hallucinations without delusions, 23 had symptoms dominated by delusions. Severity and/or number of hallucination subtypes were significantly correlated with lower scores in language, memory, attention, executive functioning, and visuospatial ability. Correlations with delusions were non-significant. Tests of differences in the size of the correlations between groups revealed a significant relationship between language and visuospatial performance with hallucinations. CONCLUSIONS: Cognitive correlates of hallucinations and delusions appear to be different in PD, suggesting distinct pathogenic mechanisms and possibly anatomical substrates. Hence, delusions may not share the same associations with dementia as hallucinations. Since this is a new finding, further studies will be needed to confirm our results. (shrink)

MEDIEVAL LOGICS LAMBERT MARIE DE RIJK (ed.), Die mittelalterlichen Traktate De mod0 opponendiet respondendi, Einleitung und Ausgabe der einschlagigen Texte. (Beitrage zur Geschichte der Philosophie und Theologie des Mittelalters, Neue Folge Band 17.) Miinster: Aschendorff, 1980. 379 pp. No price stated. THE SEVENTEENTH CENTURY MARTA FATTORI, Lessico del Novum Organum di Francesco Bacone. Rome: Edizioni dell'Ateneo 1980. Two volumes, il + 543, 520 pp. Lire 65.000. VIVIAN SALMON, The study of language in 17th century England. (Amsterdam Studies in the Theory (...) and History of Linguistic Science, Series 111: Studies in theHistory of Linguistics, Volume 17.) Amsterdam: John Benjamins B.V., 1979.x + 218 pp. Dfl. 65. Theoria cum Praxi. Zum Verhaltnis von Theorie und Praxis im 17. und 18. Jahrhundert. (Akten des 111. Internationalen Leibnizkongress, Hannover, 12. bis 17.November 1977, Band 111: Logik, Erkenntnistheorie, Wissenschaftstheorie, Metaphysik, Theologie.) Wiesbaden: Franz Steiner Verlag, 1980. vii + 269 pp. DM 48. CLASSICAL AND NON-CLASSICAL LOGICS MICHAEL CLARK, The place of syllogistic in logical theory. Nottingham: University of Nottingham Press, 1980. ix + 151 pp. £3.00. A.F. PARKER-RHODES, The theory of indistinguishables. Dordrecht, Boston and London: D. Reidel Publishing Company, 1981. xvii + 216 pp. Dfl.90.00/$39.50. NICHOLAS RESCHER and ROBERT BRANDOM, The logic of inconsistency. Oxford:Basil Blackwell, 1980. x + 174 pp. f 11.50. MISCELLANEOUS J. ZELENY, The logic of Marx. Translated from the German by T. Carver. Oxford: Basil Blackwell, 1980. xcii + 247 pp. £12.50. FELIX KAUFMANN, The infinite in mathematics. Edited by Brian McGuinness. Introduction by E. Nagel. Translation from the German by Paul Foulkes. Dordrecht: Reidel, 1978. xvii + 235 pp. Dfl 85/$39.50 (cloth); Dfl 45/$19.95 (paper). PAMELA MCCORDUCK, Machines who think. San Francisco: W.H. Freeman and Company, 1979. xiv + 275 pp. $14.95. J. MITTELSTRASS (ed.), Enzyklopadie Philosophie und Wissenschaftstheorie Bd. 1 : A-G. Mannheim, Wien, Ziirich: Bibliographisches Institut, 1980. 835 pp. DM 128. (shrink)

Werner Jaeger once remarked that fifth-century sophistry is the one ancient intellectual movement that is readily comprehensible to a modern mind. In the light of this fact, it is all the more surprising that until the publication of the present volume there has been no complete English version of the sophist material collected in the standard edition of Diels-Kranz. Kathleen Freeman’s Ancilla to the Pre-Socratic Philosophers: A Complete Translation of the Fragments in Diels’ "Fragmente der Vorsokratiker" included some of (...) the material, but the longer extracts from Gorgias and Prodicus, a concluding essay by the Anonymous Iamblichi, and the Dissoi Logoi were summarized rather than translated. Apparently complete translations of sophist texts have heretofore existed only in two Italian versions, one of which dates back to 1923. The present handbook is the first complete English translation of the sophist material, and it is the work of ten different hands under the general editorship of Rosamond Kent Sprague. It is also a new edition in that J. S. Morrison, the translator of Antiphon, believed, contrary to Diels, that the sophist Antiphon and the orator Antiphon of Rhamnus were one and the same, and he has reedited the material completely so as to produce a unified Antiphon. Another exception is the sophist Euthydemus of Chios, who is an historical person and is included in an appendix. (shrink)

[opening paragraph]: Our sense of free will depends upon a balance between reliability and flexibility in relation to cause-and-effect. Without the former, all outcomes would be arbitrary; without the latter, all outcomes would be predetermined. In neither case would there be any way of putting one's will into effect. So much is clear, yet establishing that precarious balance has proved so difficult that Kant himself declared ‘freedom of the will’ to be one of only three metaphysical problems which lie beyond (...) the powers of the human intellect . Western debate on this topic reflects a complex ethical and religious inheritance. Insights from Greek philosophy and Hebrew scripture were combined and filtered through Christian and Jewish traditions which developed in late antiquity and through the middle ages. These formed the context for the Enlightenment, whose dominant thinkers in turn provide the backdrop against which today's scholars act and react. (shrink)

What are the most fundamental features of the world? Do minds stand outside the natural order? Is a unified picture of mental and physical reality possible? The Mind in Nature provides a staunchly realist account of the world as a unified system incorporating both the mental and the physical.

The _Second Treatise_ is one of the most important political treatises ever written and one of the most far-reaching in its influence. In his provocative 15-page introduction to this edition, the late eminent political theorist C. B. Macpherson examines Locke's arguments for limited, conditional government, private property, and right of revolution and suggests reasons for the appeal of these arguments in Locke's time and since.

The development of a compositional model shows the incoherence of such notions as levels of being and both bottom-up and top-down causality. The mathematization of nature through the partial considerations of physics qua quantities is seen to lead to Pythagoreanism, if what is not included in the partial consideration is denied. An ontology of only probabilities, if not Pythagoreanism, is equivalent to a world of primitive dispositionalities. Problems are found with each. There is a need for properties as well as (...) quantities and these properties must be qualitative as well as dispositional. So there is a need for physical qualia (qualities) for the depiction of the intrinsic character of the finest interstices of nature. (shrink)

IT IS SHOWN IN DETAIL THAT RECENT ACCOUNTS FAIL TO DISTINGUISH BETWEEN INTENTIONALITY AND MERELY CAUSALLY DISPOSITIONAL STATES OF INORGANIC PHYSICAL OBJECTS—A QUICK ROAD TO PANPSYCHISM. THE CLEAR NEED TO MAKE SUCH A DISTINCTION GIVES DIRECTION FOR FUTURE WORK. A BEGINNING IS MADE TOWARD PROVIDING SUCH AN ACCOUNT.

One of the twentieth century's most respected political philosophers presents a controversial perspective on the political ideas and intellectual legacy of Edmund Burke. This new edition includes an introduction by Frank Cunningham, placing the book in the broader context of Macpherson's work.

In his final book, one of the giants of twentieth-century political philosophy returns to his key themes of state, class, and property to consider such contemporary questions as economic justice, human rights, and the nature of industrial democracy. This new edition includes an introduction by Frank Cunningham, placing the book in the broader context of Macpherson's work.

Corporate social responsibility (CSR) continues to gain attention atop the corporate agenda and is by now an important component of the dialogue between companies and their stakeholders. Nevertheless, there is still little guidance as to how companies can implement CSR activity in order to maximize returns to CSR investment. Theorists have identified many company-favoring outcomes of CSR; yet there is a dearth of research on the psychological mechanisms that drive stakeholder responses to CSR activity. Borrowing from the literatures on meansend (...) chains and relationship marketing, we propose a conceptual model that explains how CSR provides individual stakeholders with numerous benefits (functional, psychosocial, and values) and how the type and extent to which a stakeholder derives these benefits from CSR initiatives influences the quality of the relationship between the stakeholder and the company. The paper discusses the implications of these insights and highlights a number of areas for future research. (shrink)

The aim of this paper is to set out some of the ontologies amongst which some forms of anti-realism must select. This provides the appropriate setting for presenting an alternative realist ontology. The argument is that the choice between the varieties of anti-realism and realism is inevitably a choice between ontologies.

The Cambridge History of Renaissance Philosophy, published in 1988, offers a balanced and comprehensive account of philosophical thought from the middle of the fourteenth century to the emergence of modern philosophy. This was the first volume in English to synthesise for a wider audience the substantial and sophisticated research now available. The volume is organised by branch of philosophy rather than by individual philosopher or school, and the intention has been to present the internal development of different aspects of the (...) subject in their own historical context. The structure also naturally emphasises the international nature of philosophy in the Renaissance. (shrink)

By the standards presented in the Introduction, CMFC2 is deficient on at least one ontological ground: ‘∀’ is a syncategorematic expression and so CMFC2 is not an ideal language. To some there may be an additional difficulty: any two wffs provably equivalent in the classical sense are provably identical. We hope in sequel to present systems free of these difficulties, free either of one or the other, or perhaps both.This work was done with the aid of Canada Council Grant S74-0551-S1.