GARY HATFIELD

Education

Academic Appointments

Research Interests

• Perception and cognition: The interaction between sensory and cognitive processes to yield phenomenal experience; the history of theories of visual perception and the interaction between philosophy and psychology therein.
• Philosophy of psychology: The structure of explanation in theories of visual perception and the interaction between psychological and neural explanations; qualia and the mind-body problem.
• History of philosophy: Metaphysics, epistemology, and science in Descartes and Kant; historical relations of philosophy and psychology.
• History of psychology: The origin of naturalistic theories of psychological capacities; the development of psychology as a natural science.

Awards and Activities

Daniel S. Pajes Prize in Art History, 1971
National Science Foundation Predoctoral Fellow, 1975–78
Vilas Travel Fellowship, 1978
Research Associate in Psychology, Wisconsin, 1980
American Council of Learned Societies Fellowship for Recent PhDs, 1983
Fellow, Research Group "Mind and Brain," ZiF, Bielefeld, summer, 1990
Fellow, Research Group "Perception and Evolution," ZiF, Bielefeld, 1995–96
Co-director, Provost's Faculty Seminar, "The Power of Sight," 1996-99
Penn Museum International Research Conference Funding, 2007
IRCS Workshop Funding, 2009
Summer Fellow, Max Planck Institut für Wissenschaftsgeschichte, 2009
National Science Foundation grant (with Alistair Isaac), Measurement and Isomorphism in the Psychology of Perception: A Historical Approach to the Problem of Representation, 2011-13
Mellon Faculty Fellow, Penn Humanities Forum, 2014-15
National Endowment for the Humanities fellowship, Early Modern Models of the Eye, Vision, and the Seeing Subject, Summer and Fall, 2015
Visting Scholar, Logic & Phil. of Science, Univ. of California, Irvine, May-June 2016
Visiting researcher and instructor, LABEX COMOD, Ecole Normale Superieure, Lyon, Dec. 2018

Editorial Board: Philosophical Psychology.

Memberships

American Philosophical Association, Cognitive Science Society, Forum for the History of the Human Sciences, History of Science Society, HOPOS, North American Kant Society, Philosophy of Science Association, Society for Philosophy and Psychology, Southern Society for Philosophy and Psychology.

Publications

1. The Natural and the Normative: Theories of Spatial Perception from Kant to Helmholtz. Cambridge: MIT Press/Bradford Books, 1990, xii+366.
   
2. Kant's Prolegomena to Any Future Metaphysics, translated, with introduction, notes, and selections from the Critique of Pure Reason. Cambridge Texts in the History of Philosophy. Cambridge University Press, 1997. Revised edition, with additional Critique selections and the Göttingen and Gotha reviews, 2004.
3. Edition of Kant's Prolegomena, with translator's introduction, apparatus, and notes. In Theoretical Philosophy After 1781, ed. by Henry Allison and Peter Heath. Cambridge Edition of the Works of Immanuel Kant. Cambridge University Press, 2002.
4. Descartes and the Meditations. London: Routledge, 2003, xxi+353.
   Chinese translation of same (simplified characters), by Shang Xin Jian (Peking University). Guilin City: Guangxi Normal University Press, 2007.
   Chinese translation of same (complex characters), by Chou Chun-tang (Huafan University, Taiwan). Taipei: Wu Nan Press, 2009.
5. Perception and Cognition: Essays in the Philosophy of Psychology. Oxford: Clarendon Press, 2009, xiv+533.
6. Visual Experience: Sensation, Cognition, and Constancy, ed. Gary Hatfield and Sarah Allred. Oxford: Oxford University Press, 2012.
7. The Evolution of Mind, Brain, and Culture, ed. Gary Hatfield and Holly Pittman. Philadelphia: University of Pennsylvania Press, 2013.
8. Routledge Guidebook to Descartes' Meditations. Abingdon: Routledge, 2014, xxi+364. (Second edition of #4.)

1. Force (God) in Descartes' Physics. Studies in History and Philosophy of Science 10 (1979), 113–140. Reprinted in Descartes, ed. by J. Cottingham, Oxford Readings in Philosophy (Oxford: Oxford University Press, 1998), 281–310.
2. Functional Equivalence of Masking and Cue Reduction in Perception of Shape at a Slant. Perception and Psychophysics 23 (1978), 137–144, with W. Epstein.
3. The Sensory Core and the Medieval Foundations of Early Modern Perceptual Theory. Isis 70 (1979), 363–384, with W. Epstein.
4. Representation without Symbol Systems. Social Research 51 (1984), 1019–1045, with S. Kosslyn.
5. First Philosophy and Natural Philosophy in Descartes. In Philosophy, Its History and Historiography, ed. by A. J. Holland (Dordrecht: Reidel, 1985), 149–164.
6. The Status of the Minimum Principle in the Theoretical Analysis of Vision. Psychological Bulletin 97 (1985), 155–186, with W. Epstein.
7. The Senses and the Fleshless Eye: The Meditations as Cognitive Exercises. In Essays on Descartes' Meditations, ed. by Amelie Rorty (Berkeley: University of California Press, 1986), 45–79.
8. Representation and Content in Some (Actual) Theories of Perception. Studies in History and Philosophy of Science 19 (1988), 175–214.
9. Neuro-Philosophy Meets Psychology: Reduction, Autonomy, and Physiological Constraints. Cognitive Neuropsychology 5 (1988), 723–746.
10. Gibsonian Representations and Connectionist Symbol-Processing: Prospects for Unification. Psychological Research 52 (1990), 243–252.
11. Metaphysics and the New Science. In Reappraisals of the Scientific Revolution, ed. by David Lindberg and Robert Westman (Cambridge: Cambridge University Press, 1990), 93–166.
12. Representation in Perception and Cognition: Connectionist Affordances. In Philosophy and Connectionist Theory, ed. by W. Ramsey, D. Rumelhart, and S. Stich (Hillsdale, NJ: Lawrence Erlbaum, 1991), 163–195.
13. Representation and Rule-Instantiation in Connectionist Systems. In Connectionism and the Philosophy of Mind, ed. by T. Horgan and J. Tienson (Boston: Kluwer, 1991), 90–112.
14. Color Perception and Neural Encoding: Does Metameric Matching Entail a Loss of Information? In PSA 1992, ed. by David Hull and Mickey Forbes, 2 vols. (East Lansing, MI: PSA), 1:492–504.
15. Descartes' Physiology and Its Relation to His Psychology. In Cambridge Companion to Descartes, ed. by John Cottingham (Cambridge: Cambridge University Press, 1992), 335–370.
16. Empirical, Rational, and Transcendental Psychology: Psychology as Science and as Philosophy. In Cambridge Companion to Kant, ed. by Paul Guyer (Cambridge: Cambridge University Press, 1992), 200–227.
17. Helmholtz and Classicism: The Science of Aesthetics and the Aesthetics of Science. In Hermann von Helmholtz and the Foundations of Nineteenth-Century Science, ed. by David Cahan (Berkeley: University of California Press, 1993), 522–558.
18. Reason, Nature, and God in Descartes. In Essays on the Philosophy and Science of Rene Descartes, ed. by Stephen Voss (New York: Oxford University Press, 1993), 259–287.
19. Gestalt Psychology and the Philosophy of Mind. Philosophical Psychology 7 (1994), 163–181, with W. Epstein.
20. Remaking the Science of Mind: Psychology as a Natural Science. In Inventing Human Science, ed. by Christopher Fox, Roy Porter, and Robert Wokler (Berkeley: University of California Press, 1995), 184–231.
21. Philosophy of Psychology as Philosophy of Science. In PSA 1994, ed. by David Hull, Mickey Forbes, and Richard Burian, 2 vols. (East Lansing, MI: Philosophy of Science Association, 1995), 2:19–23.
22. Review Essay: The Importance of the History of Science for Philosophy in General. Review of books by Daniel Garber and Michael Friedman, Synthese 106 (1996), 113–138.
23. Was the Scientific Revolution Really a Revolution in Science? In Tradition, Transmission, Transformation, ed. by Jamil Ragep and Sally Ragep, Collection de travaux de l'Academie internationale d'histoire des sciences (Leiden: Brill, 1996), 489–525.
24. The Workings of the Intellect: Mind and Psychology. In Logic and the Workings of the Mind: The Logic of Ideas and Faculty Psychology in Early Modern Philosophy, ed. Patricia Easton. North American Kant Society Publications 5 (Atascadero, Calif.: Ridgeview Publishing Co., 1997), 21–45.
25. Wundt and Psychology as Science: Disciplinary Transformations. Perspectives on Science 5 (1997), 349–382.
26. The Cognitive Faculties. In Cambridge History of Seventeenth Century Philosophy, ed. by M. Ayers and D. Garber (Cambridge: Cambridge University Press, 1998), 953–1002.
27. Attention in Early Scientific Psychology. In Visual Attention, ed. by R. D. Wright (New York: Oxford University Press, 1998), 3–25.
28. Mental Functions as Constraints on Neurophysiology: Biology and Psychology of Vision. In Where Biology Meets Psychology: Philosophical Essays, ed. by V. Hardcastle (Cambridge: MIT Press, 1999), 251–271.
29. The Brain's "New" Science: Psychology, Neurophysiology, and Constraint. Philosophy of Science 67 (2000), S388–403.
30. Descartes' Naturalism About the Mental. In Descartes' Natural Philosophy, ed. by Stephen Gaukroger, John Schuster, and John Sutton (London: Routledge, 2000), 630–658.
31. Epistemology and Science in the Image of Modern Philosophy: Rorty on Descartes and Locke. In Future Pasts: Reflections on the History and Nature of Analytic Philosophy, ed. by J. Floyd and S. Shieh (Oxford University Press, 2001), 393–413.
32. The Prolegomena and the Critiques of Pure Reason. In Kant und die Berliner Aufklärung, ed. by V. Gerhardt, R. P. Horstmann, and R. Schumacher (Berlin: de Gruyter, 2001), 185–208.
33. Perception as Unconscious Inference. In Perception and the Physical World: Psychological and Philosophical Issues in Perception, ed. by Dieter Heyer and Rainer Mausfeld (New York: Wiley, 2002), 115–143.
34. Psychology, Philosophy, and Cognitive Science: Reflections on the History and Philosophy of Experimental Psychology. Mind and Language 17 (2002), 207–232.
35. Sense-Data and the Mind-Body Problem: Russell, James, and Mach. Principia 6 (2003), 203–230.
36. Behaviorism and Naturalism. In Cambridge History of Philosophy, 1870–1945, ed. by Thomas Baldwin (Cambridge: Cambridge University Press, 2003), 640–648.
37. Psychology Old and New. In Cambridge History of Philosophy, 1870–1945, ed. by Thomas Baldwin (Cambridge: Cambridge University Press, 2003), 93–106.
38. Representation and Constraints: The Inverse Problem and the Structure of Visual Space. Acta Psychologica 114 (2003), 355–378.
39. Objectivity and Subjectivity Revisited: Color as a Psychobiological Property. In Colour Perception: Mind and the Physical World, ed. by Rainer Mausfeld and Dieter Heyer (Oxford: Oxford University Press, 2003), 187–202.
40. What Were Kant's Aims in the Deduction? Philosophical Topics 31 (2003), 165–198.
41. Seeing_Dretske. Philosophical Studies 120 (2004), 19–35.
42. Sense-Data and the Mind-Body Problem. In Perception and Reality: From Descartes to the Present, ed. by Ralph Schumacher (Berlin: Mentis Verlag, 2004), 305–331.
43. Force and Mind-Body Interaction. In Science and Cultural Diversity: Proceedings of the XXIst International Congress of the History of Science, ed. by Juan Jose Saldana (Mexico City: Autonomous National University of Mexico, 2005), 3074–3089.
44. History of Philosophy as Philosophy. In Analytic Philosophy and History of Philosophy, ed. by Tom Sorell and G. A. J. Rogers (Oxford: Oxford University Press, 2005), 82–128.
45. Introspective Evidence in Psychology. In Scientific Evidence: Philosophical Theories and Applications, ed. by Peter Achinstein (Baltimore, MD: Johns Hopkins University Press, 2005), 259–286.
46. Rationalist Theories of Sense Perception and Mind–Body Relation. In Blackwell Companion to Rationalism, ed. by Alan Nelson (Oxford: Blackwell, 2005), 31–60.
47. The Cartesian Circle. In Blackwell Guide to Descartes' Meditations, ed. by Stephen Gaukroger (Oxford: Blackwell, 2005), 122–141.
48. Kant on the Perception of Space (and Time). In Cambridge Companion to Kant and Modern Philosophy, ed. by Paul Guyer (Cambridge: Cambridge University Press, 2006), 61–93.
49. Psychology and Philosophy. In Continuum Encyclopedia of British Philosophy, ed. by Anthony Grayling, Andrew Pyle, and Naomi Goulder, 4 vols. (London: Thoemmes, 2006), 3:2613–2621.
50. The Passions of the Soul and Descartes's Machine Psychology. Studies in History and Philosophy of Science 38 (2007), 1–35.
51. The Reality of Qualia. Erkenntnis 66 (2007), 133–168.
52. Did Descartes Have a Jamesian Theory of the Emotions? Philosophical Psychology 20 (2007), 413–440.
53. Animals. In Companion to Descartes, ed. by J. Broughton and J. Carriero (Oxford: Blackwell, 2008), 404–425.
54. Mental Acts and Mechanistic Psychology in Descartes' Passions. In Descartes and the Modern, ed. by Neil Robertson, Gordon McOuat, and Tom Vinci (Newcastle upon Tyne: Cambridge Scholars Publishing, 2008), 49–71.
55. Hume, Space, and the Self, Review Essay: Marina Frasca-Spada: Space and the Self in Hume's Treatise. Cambridge: Cambridge University Press, 2002. British Journal for the History of Philosophy 17.5 (2009), 1011–19.
56. Psychology in Philosophy: Historical Perspectives. In Psychology and Philosophy: Inquiries into the Soul from Late Scholasticism to Contemporary Thought, ed. by Sara Heinamaa and Martina Reuter (Dordrecht: Springer, 2009), 1–25.
57. Rationalist Roots of Modern Psychology. In Routledge Companion to Philosophy of Psychology, ed. John Symons and Paco Calvo (London: Routledge, 2009), 3–21.
58. The Sixth Meditation: Mind-Body Relation, External Objects, and Sense Perception. In Meditationen ueber die Erste Philosophie, ed. Andreas Kemmerling (Berlin: Akademie, 2009), 123–46.
59. Mandelbaum's Critical Realism. In Maurice Mandelbaum and American Critical Realism, ed. Ian Verstegen (London: Routledge, 2010), 46–64.
60. Transparency of Mind: The Contributions of Descartes, Leibniz, and Berkeley to the Genesis of the Modern Subject. In Departure for Modern Europe: A Handbook of Early Modern Philosophy (1400-1700), ed. Hubertus Busche (Hamburg: Felix Meiner Verlag, 2011), pp. 361–75.
61. Kant and Helmholtz on Primary and Secondary Qualities. In Primary and Secondary Qualities: The Modern Debate, ed. Larry Nolan (Oxford: Oxford University Press, 2011), 304–38.
62. Philosophy of Perception and the Phenomenology of Visual Space. Philosophic Exchange 42 (2011), 31–66.
63. Koffka, Köhler, and the "Crisis" in Psychology. Studies in History and Philosophy of Science 43 (2012), 483–92.
64. Psicologia, Filosofia e Ciencia Cognitiva: Reflexões Sobre a História e a Filosofia da Psicologia Experimental, trans. Saulo de Freitas Araujo and Gary Hatfield. In História e Filosofia da Psicologia: Perspectivas Contemporâneas, ed. Saulo de Freitas Araujo (Juiz de Fora, Brazil: Editora UFJF, 2012), pp. 223-258. (Original English version, 2002.)
65. Phenomenal and Cognitive Factors in Spatial Perception. In Visual Experience, ed. Gary Hatfield and Sarah Allred (Oxford: Oxford University Press, 2012), pp. 35–62.
66. Mechanizing the Sensitive Soul. In Matter and Form in Early Modern Science and Philosophy, ed. Gideon Manning (Leiden: Brill, 2012), pp. 151–86.
67. Psychology. In The Cambridge History of Philosophy in the Nineteenth Century (1790-1870), ed. Allen W. Wood and Songsuk Susan Hahn (Cambridge: Cambridge University Press, 2012), pp. 241–262.
68. Psychology, Epistemology, and the Problem of the External World: Russell and Before. In Historical Turn in Analytic Philosophy, ed. Erich Reck (London: Macmillan, 2013), pp. 171–200.
69. Russell's Progress: Spatial Dimensions, the From-Which, and the At-Which. In Self, World, and Art: Metaphysical Topics in Kant and Hegel, ed. Dina Emundts (Berlin: De Gruyter, 2013), pp. 321–44.
70. Perception and Sense Data. In Oxford Handbook of the History of Analytical Philosophy, ed. M. Beaney (Oxford: Oxford Univ. Press, 2013), pp. 948–74.
71. Descartes on Sensory Representation, Objective Reality, and Material Falsity. In Descartes' Meditations: A Critical Guide, ed. Karen Detlefsen (Cambridge: Cambridge University Press, 2013), pp. 127–50.
72. Activity and Passivity in Theories of Perception: Descartes to Kant. In Active Perception in the History of Philosophy: From Plato to Modern Philosophy, ed. José Filipe Silva and Mikko Yrjönsuuri (Berlin: Springer, 2014), pp. 275–89.
73. The Cartesian Psychology of Antoine Le Grande. In Cartesian Empiricisms, ed. Mihnea Dobre and Tammy Nyden (Berlin: Springer, 2014), pp. 251–74.
74. Cognition. In The Routledge Handbook of Embodied Cognition, ed. Lawrence Shapiro (London: Routledge, 2014), pp. 361–73.
75. The Emergence of Psychology. In Oxford Handbook of British Philosophy in the Nineteenth Century, ed. W. J. Mander (Oxford: Oxford University Press, 2014), pp. 324–44.
76. René Descartes. In The Stanford Encyclopedia of Philosophy (Spring 2014 Edition), ed. Edward N. Zalta.
77. Kant on the Phenomenology of Touch and Vision. In Kant's Lectures on Anthropology: A Critical Guide, ed. Alix Cohen (Cambridge: Cambridge University Press, 2014), pp. 38–56.
78. Psychological Experiments and Phenomenal Experience in Size and Shape Constancy. Philosophy of Science 81.5 (2014), 940–53.
79. On Natural Geometry and Seeing Distance Directly in Descartes. In Mathematizing Space: The Objects of Geometry from Antiquity to the Early Modern Age, ed. Vincenzo de Risi (Berlin: Birkhaeuser, 2015), pp. 157–92.
80. Natural Geometry in Descartes and Kepler. Res Philosophica 92 (2015), 117–48. (Res Philosophica continues Modern Schoolman.)
81. Radical Empiricism, Critical Realism, and American Functionalism: James and Sellars. HOPOS: The Journal of the International Society for the History of Philosophy of Science 5 (2015), 129–153.
82. Perception in Philosophy and Psychology in the 19th and Early 20th Centuries. In Oxford Handbook of the Philosophy of Perception, ed. Mohan Matthen (Oxford: Oxford University Press, 2015), pp. 100–117.
83. Objectifying the Phenomenal in Experimental Psychology: Titchener and Beyond. Philosophia Scientiae 19 (2015), 73–94.
84. L'Homme in Psychology and Neuroscience. In Descartes' Treatise on Man and Its Reception, ed. Stephen Gaukroger and Delphine Antoine-Mahut (New York: Springer, 2016), pp. 269–85.
85. Perceiving as Having Subjectively Conditioned Appearances. Philosophical Topics 44 (2016), 149–78. (Special issue on New Directions in the Philosophy of Perception, ed. Christopher Hill and Brian McLaughlin.)
86. Descartes: New Thoughts on the Senses. British Journal for the History of Philosophy 25 (2017), 443–64. (Special issue on Mental Powers in Early Modern Philosophy, ed. F. Boccaccini and A. Marmodoro.)
87. L'attention chez Descartes: aspect mental et aspect physiologique. Les Etudes philosophiques 120 (2017), 7–25.
88. Modern Meanings of Subjectivity: Philosophical, Psychological, Physiological, International Yearbook of German Idealism (special issue on Psychology), 15 (2017), 77-103 (published 2020).
89. Descartes as a Great Philosopher: Comprehensive Physics, Mechanistic Embodiment, and Methodological Systematicity. In: What Makes a Philosopher Great?: Thirteen Arguments for Twelve Philosophers, ed. by Stephen Hetherington (New York: Routledge, 2018), pp. 104–127.
90. Helmholtz and Philosophy: Science, Perception, and Metaphysics, with Variations on Some Fichtean Themes. Journal for the History of Analytical Philosophy 6.3 (2018), 11–41 (Special issue on Method, Science, and Mathematics: Neo-Kantianism and Analytic Philosophy).
91. A construcao da experiencia perceptiva: o que isso quer dizer? [translated into Portuguese by Ivan Ferreira da Cunha and Renato Cesar Cani, from: The Construction of Perceptual Experience: What Does It Mean?], Principia: an international journal of epistemology 21.2 (2017), 167–188.
92. Differentiating between Affine and Perspective-Based Models for the Geometry of Visual Space Based on Judgments of the Interior Angles of Squares. Vision 2 (2018), 1–22. With Mark Wagner (first author), Kelly Cassese, and Alexis N. Makwinski.
93. Mind and Psychology in Descartes. In: The Oxford Handbook of Descartes and Cartesianism, ed. by Steven Nadler, Tad M. Schmaltz, and Delphine Antoine-Mahut (Oxford: Oxford University Press, 2019), pp. 106–123.
94. Descartes. In: The Cambridge History of French Thought, ed. by Michael Moriarty and Jeremy Jennings (Cambridge: Cambridge University Press, 2019), pp. 124–134.
95. Gibson and Gestalt: (Re)Presentation, Processing, and Construction, Synthese, special issue on Gestalt Phenomenology and Embodied Cognitive Science, Online First (2019), 29 pages.
96. Geometry and Visual Space from Antiquity to the Early Moderns. In: Space, edited by Andrew Janiak, Oxford Philosophical Concepts (New York: Oxford University Press, 2020), 184–222.
97. "Wundt and Higher Cognition," HOPOS: The Journal of the International Society for the History of Philosophy of Science 10 (2020), 48–75.
98. James on the Perception of Space, in: Oxford Handbook on William James, ed. A. Klein (Oxford: Oxford University Press, 2020), 25 pages online.
99. Sense Data, in Stanford Encyclopedia of Philosophy (2021).

Public Lectures, Keynotes, and Plenaries

1. Science Examines the Arts: Helmholtz on Painting and Music. Lecture series celebrating the opening of the John Crerar Science Library, University of Chicago, 1985.
2. An Historical Approach to the Mind-Body Problem. Johns Hopkins Special Evening Lecture Series, "Mind and Brain: The Inner Frontier," 1986.
3. Reason, Nature, and God in Descartes. Featured Lecture, Conference Celebrating the 350th Anniversary of Descartes's Discourse, San Jose, 1988.
4. Is the Mind the Brain? Alumni/Faculty Exchange, The Mind and the Brain, Penn 250th Celebration, 1990.
5. Descartes and the Mechanistic Universe: World without Ends? Philomathean Lecture Series, Penn, March, 1991.
6. Epistemology and the Image of Modern Philosophy: Rorty on Descartes and Locke. Austin-Hempel Lecture, Dalhousie University, June, 1991.
7. Descartes and the Mind. Descartes at 400 Lecture Series, Tufts University, December, 1996.
8. Descartes as a Philosopher: Legacy and Contribution. Annee Descartes, French Institute for Culture and Technology, Penn, March, 1997.
9. Psychological Science: Things or Functions? Comments on Dennett's "Things About Things". first annual Benjamin and Anne A. Pinkel Endowed Lecture, Penn, October, 1998.
10. The Separation of Philosophy and Psychology: Past Dependency and Intellectual Identity. Symposium on Past Dependencies, Stanford Presidential Lectures and Symposia in the Humanities and Arts, November, 1999.
11. The Prolegomena and the Critiques of Pure Reason. Invited lecture, Ninth International Kant Congress, Berlin, March, 2000.
12. Mind, Culture, and Biology. Keynote Address, George Washington University Undergraduate Philosophy Conference, Washington, D.C., April 2005. Department of Philosophy, Stanford University, April 2005.
13. The Body: A Mind of Its Own. Mutable Body Lectures, New Perspectives Program, Indiana University, South Bend, January 2006.
14. Mental Acts and Mechanistic Psychology in Descartes' Passions. Invited talk, Oxford Seminar in Early Modern Philosophy, Oxford University, October 2006.
15. Transparency of Mind: The Contribution of Descartes, Leibniz and Berkeley to the Genesis of the Modern Subject. Invited talk, European Society for Early Modern Philosophy, First International Congress, Essen, March 2007.
16. Mind-Body Causation and Neutral Monism: Helmholtz, Mach, and James. Closing Address, British Society for the History of Philosophy annual meeting, March 2008.
17. Descartes on Sensory Representation, Objective Reality, and Material Falsity. Keynote Address, Quebec Seminar in Early Modern Philosophy, Sherbrooke, Sept. 2011.
18. Why Does Perceptual Realism Matter? Plenary talk, 29th Annual Meeting of the International Society for Psychophysics, Freiburg, Oct. 2013.
19. On Natural Geometry and Seeing Distance Directly in Descartes. Keynote lecture, 4th Annual New York City Workshop in Early Modern Philosophy, Fordham University, New York, Mar. 2014.
20. Baumgarten, Wolff, Descartes, and the Origins of Psychology. Keynote lecture, Alexander Baumgarten's Metaphysics: Sources, Interpretation and Influence, La Salle University, Philadelphia, Mar. 2014.
21. Rethinking Descartes on Sense Perception. Keynote lecture, Summer School on Epistemology and Cognition, University of Groningen, Aug. 2014.
22. Perceptual Realisms and the Phenomenology of Visual Space. Larwill Lecture, Kenyon College, Oct., 2014.
23. Attention in Descartes: Neurophysiology Meets Phenomenality. Keynote, Colloque international: Conceptions et usages de l'attention au XVIIe siecle, jointly organized by the University of Liege and the Free University of Brussels, Mar., 2015.
24. Color as Surface Presenter and Difference Maker. Keynote address, conference on Ecological Perception: Amodal and Multimodal Trends, University of Edinburgh, May, 2015.
25. Seeing Pictures: Mind, Image, and World. Dean's Lecture Series, College of Art, Media & Design, University of the Arts, Philadelphia, Oct., 2016.
26. Varieties of Visual Intelligence. Keynote, Inaugural Symposium: Philosophical Understanding of Visual Intelligence, Institute for Visual Intelligence, New York City, Nov., 2016.
27. Wundt and Higher Cognition. Keynote Address, Workshop on Folk Psychology and Descriptive Psychology - in the Contexts of Historicism, Relativism and Naturalism. University of Vienna, April, 2017.
28. Perceptual Realisms and the Geometry of Visual Space. Keynote Presentation, Representing Reality, SUNY Potsdam, May, 2017.
29. Gibson and Gestalt: Representation (Presentation) and Construction. Closing Keynote, The World in Us: Gestalt Structure, Phenomenology, and Embodied Cognition, Edinburgh, July, 2017.
30. The Construction of Perceptual Experience: What Does It Mean? Opening plenary address, Principia X: The Construction of Experience, Florianopolis, Brazil, August, 2017.
31. On Classifying Philosophies: Helmholtz as Empiricist or Kantian? Keynote, Defining Late Modern Philosophy: Identity and Criteria, Liege, Belgium, December, 2017.
32. Reading the Meditations as Meditations. Opening Keynote, conference: A nouveau les Meditations, ENS, Lyon, December, 2018.

Colloquia, Workshops, etc.: Talks Given Since 2004

1. The Passions of the Soul and Descartes' Machine Psychology. University of King's College, Descartes Lecture Series, April 2004.
2. Kantian Things and Conditional or Contingent Necessity: Comments on a Paper by Robert Greenberg. Central Division APA, Chicago, April 2004.
3. Introspective Evidence in Psychology. Ursinus College Methodology Symposium, April 2004.
4. Was Kant Out to Refute Hume in the First Critique? Thirty-First Meeting of the Hume Society, Tokyo, August 2004.
5. The Geometry of Visual Space. Perceptual Dynamics Colloquium, Riken Brain Science Institute, Tokyo, August 2004.
6. Cartesian Zombies: The Psychology of Machines. Center for History and Philosophy of Science, Johns Hopkins University, November 2004.
7. Descartes' Passions of the Soul and the Principle of Habituation or Association. Southeast Seminar in Early Modern Philosophy, University of Virginia, October 2005.
8. On Perceptual Constancy. Conference on Brain, Language and Cognition, Center for Cognitive Sciences, University of Minnesota, October 2005.
9. What Can the Mind Tell Us About the Brain? Minnesota Center for Philosophy of Science, University of Minnesota, October 2005.
10. Consciousness and Qualia. Brown Bag Discussion, Department of Philosophy, Indiana University, South Bend, January 2006.
11. On Perceptual Constancy and the Geometry of Visual Space. Philosophy Colloquium, CUNY Graduate Center, New York, February 2006; Philosophy Colloquium, Ohio State University, April 2006.
12. Kant on Spatial Perception, Apperception, and Introspective Awareness. Mind and Language Seminar, New York University, February 2006.
13. Color as a Psychobiological Property. Penn-UNAM Philosophy Encounter, Autonomous National University of Mexico, May 2006.
14. American Functionalism and Behaviorism. Enriching the Context: Naturalism, Empiricism, and Realism in American Philosophy and Psychology, 1870-1930, International Society for the History of the Philosophy of Science, Paris, June 2006.
15. Perceptual Constancy and Visual Space. Lunchtime Seminar Series, Institute of Philosophy, School of Advanced Study, University of London, October 2006.
16. What Can Contextual History of Philosophy Do for Philosophy? Symposium on Approaches to the History of Philosophy, Eastern Division APA, December 2006.
17. Psychology in Mind: From the Mind-Body to the Physiology-Psychology Problem. Berkeley-UCSF Colloquium in History of Science, Technology, and Medicine, Berkeley, October 2007.
18. Mechanizing the Sensitive Soul. Conference on Hylomorphism in Early Modern Philosophy, CalTech, Pasadena, May 2008.
19. In What Ways Was Helmholtz Kantian? Symposium on The Natural and the Neo-Kantian: Empirical Science and Neo-Kantianism, meeting of the International Society for the History of Philosophy of Science (HOPOS), Vancouver, June 2008.
20. Comment on Charles Wallis, "Dual-Use Neural Systems and Theories of Mental Representation." 34th annual meeting of the Society for Philosophy and Psychology, Philadelphia, June 2008.
21. Descartes' Contemporaries. Invited seminar, European Science Foundation Summer School, The Soul: From the Aristotelian scientia de anima to Early Modern Psychology, Roudboud University, Nijmegen, Netherlands, July 2008.
22. Köhler, Koffka, and the "Crisis" in Psychology. Workshop on Crisis Debates in Psychology, Max Planck Institute for the History of Science, Berlin, October 2008.
23. Descartes' Mechanization of the Sensitive Soul: The Internal Senses. Institute Colloquium, Max Planck Institute for the History of Science, Berlin, October 2008.
24. Getting Objects for Free (or Not): The Philosophy and Psychology of Object Perception. Lunchtime Seminar Series, Institute of Philosophy, School of Advanced Study, University of London, October 2008.
25. Descartes' Rehabilitation of the Senses. Oxford Seminar in Early Modern Philosophy, Oxford University, October 2008.
26. Getting Objects for Free. Cognitive Lunch, Department of Psychology, University of Virginia, October 2008.
27. Descartes' Mechanization of the Sensitive Soul. Department of Philosophy Colloquium, University of Virginia, October 2008.
28. Köhler, Koffka, and the 'Crisis' in Psychology. Annual Meeting of the History of Science Society, Pittsburgh, November 2008.
29. Comments on papers by Mark Johnson and Taylor Carman. GPPC Symposium on "New Approaches to the Mind/Body Problem," Swarthmore College, November 2008.
30. Berkeley's New Theory: Embodiment, Perception, and Action. George Berkeley's New Theory of Vision: 300 Years Later, A Series of Interdisciplinary Lectures, Brown University, February 2009.
31. Perceptual and Cognitive Factors in Spatial Perception. IRCS Workshop on Cognitive and Developmental Factors in Perceptual Constancy, Penn, February 2009.
32. Internal Senses in the Medievals and in Descartes. Department of Philosophy and UMB Philosophy Club, University of Massachusetts, Boston, April 2009.
33. Descartes' Rehabilitation of the Senses. Early Modern Workshop, Department of Philosophy, Harvard University, April 2009.
34. Psychoneural Linking Laws. Session on the Status of Laws in the Psychological Sciences, 101st meeting of the Southern Society for Philosophy and Psychology, Savannah, Georgia, April 2009.
35. Visual Studies at Penn. Visual Studies faculty group, Franklin & Marshall College, Lancaster, Pennsylvania, April 2009.
36. On the Disciplinary Identity of Psychology: 1732-1933. Klopsteg Seminar Series in Science in Human Culture, Northwestern University, May 2009.
37. Berkeley, Gibson, and Visual Space. Colloquium, Institute for Psychology in cooperation with the Philosophical Seminar, Christian-Albrechts-University in Kiel, Germany, June 2009.
38. Berkeley, Gibson, and the Geometry of Visual Space. Laboratoire d'Histoire des Sciences et de Philosophie, Archives Henri Poincare, Nancy University, France, June 2009.
39. On the Reception of Descartes' Machine Psychology. Integrated History and Philosophy of Science, Third Meeting (&HPS3), Bloomington, Indiana, Sept. 2010.
40. On Berkeley's Mediate Objects of Sight and Their Phenomenology: In response to Van Cleve. Philosophical Perspectives on Spatial Perception, Department of Philosophy, Harvard University, Oct. 2010.
41. The Reception of Descartes' Machine Psychology in Medical Writers and Natural Philosophy. History of Science Society Annual Meeting, Montreal, Nov. 2010.
42. Psychological Experiments and Phenomenal Experience in the Perceptual Constancies. Philosophical Issues in Experimental Science, Southern Society for Philosophy and Psychology (refereed), 103rd Meeting, New Orleans, Louisiana, Mar. 2011.
43. The Focus of Attention: Past and Present Theories. Mind, Brain, and Behavior Undergraduate Workshop 2011: Attention in Philosophy, Psychology, and the Neurosciences: Historical Origins and Present Concerns, Harvard University, Mar. 2011.
44. Russell's Progress: Spatial Dimensions, the From-Which, and the At-Which. Joint colloquium, Department of Philosophy, Departament of Logic and Philosophy of Science, University of California, Irvine, May, 2011.
45. Russell's Progress: Spatial Dimensions, the From-Which, and the At-Which. Conference on Metatphysics in Kant and Hegel, Institute of Philosophy, Humboldt University, Berlin, June 2011.
46. New Thoughts on Linear Perspective and Visual Experience. Seventh Principia International Symposium, UFSC, Florianópolis, SC, Brazil, Aug. 2011.
47. The Embodied Mind and the Bodily Machine in Descartes. Center for Philosophic Exchange, SUNY Brockport, Oct. 2011.
48. Perceptual Realism and the Phenomenology of Visual Space. Center for Philosophic Exchange, SUNY Brockport, Oct. 2011.
49. Remarks on Perceptual Realism and the Phenomenology of Visual Space. Modern Mind: Philosophical Conversations in Honor of Gary Hatfield, Penn, Nov. 2011.
50. The Embodied Eyes: On Seeing Distance Directly in Descartes. VLST Lecture Series, Penn, Nov. 2011.
51. The Embodied Eyes: On Seeing Distance Directly in Descartes. Westfall Lecture, Department of History and Philosophy of Science, Indiana University, Dec. 2011.
52. American Critical Realism: James and Sellars. Conference on Pragmatism in Philosophy of Science, University of San Francisco, Mar. 2012.
53. On Natural Geometry and Seeing Distance Directly in Descartes. Conference on Space, Geometry and the Imagination: From Antiquity to the Modern Age, Max Planck Institute for the History of Science, Berlin, Aug. 2012.
54. Perceptual Realisms and the Phenomenology of Visual Space. Aldrich Lecture, Department of Philosophy, University of Utah, Sept. 2012.
55. Consciousness and the Cartesian Theater. Harvard Oxford-Philosophical-Concepts Workshop on Consciousness, Cambridge, Mass., Oct. 2012.
56. Psychological Experiments and Phenomenal Experience in Shape Constancy. In: Introspective Evidence in the Scientific Study of Perception, PSA Symposium, Nov. 2012.
57. The Geometry of Perceptual Experience: Euclid to Descartes. Conference for the Oxford Philosophical Concepts volume on Space, Duke University, Apr. 2013.
58. On Natural Geometry and Seeing Distance Directly in Descartes. Keynote, Princeton-Penn-Columbia Graduate Conference in the History of Philosophy, Apr. 2013.
59. Psychological Experiments and Phenomenal Experience in Size and Shape Constancy. Seminar on Experimental Psychology and Phenomenology, Ecole Normale Superieure, Paris, June 2013.
60. American "New" and Critical Realism: William James and Roy Wood Sellars. Workshop: From Cambridge (on the Cam) to Cambridge (Mass) by way of Wien and Berlin, Ecole Normale Superieure, Paris, June 2013.
61. On Natural Geometry and Seeing Distance Directly in Descartes. Philosophy Colloquium, CUNY Graduate Center, Sept. 2013.
62. Descartes on Seeing Distance Directly. Henle Conference: Descartes, Saint Louis University, Apr. 2014.
63. Rethinking Descartes on the Senses. South Central Seminar in the History of Early Modern Philosophy, Texas A&M University, May 2014.
64. The Stimulus Error and Experimental Design: The Manipulation of Perceptual "Set." &HPS5, Vienna, June 2014.
65. Natural Geometry in Kepler and Descartes. Philosophy Seminar, Kenyon College, Oct., 2014.
66. Sole presenter, Workshop on Descartes' Natural Geometry, Institute for Advanced Studies in the Humanities, University of Edinburgh, June, 2015.
67. Descartes and the Brain. CHEIRON: The International Society for the History of the Behavioral and Social Sciences, 47th Annual Meeting, University of Kansas, June, 2015.
68. Animal Cognition: Controversies over the Animal Soul. Academy Colloquium Controversies in Early Modern Psychology, Royal Netherlands Academy of Arts and Sciences, July, 2015.
69. Perceiving as Having Subjectively Conditioned Appearances. Colloquium, Logic and Philosophy of Science, UC-Irvine, May, 2016.
70. Attention in Descartes: Mental and Physiological. Scientia Workshop, Philosophy, UC-Irvine, June, 2016.
71. The Natural and the Normative and The Facts in Perception: Two Works Revisited. Symposium on The Natural and the Normative at 25: Psychology, Perception, and Measurement in Kant and Helmholtz, at HOPOS, meeting of the International Society for the History of Philosophy of Science, Minneapolis, June, 2016.
72. Seeing Images, Seeing the World. College of Media Arts and Design, Drexel University, Feb. 2018.
73. The Construction of Perceptual Experience: What Does It Mean?, Philosophy Department, Wichita State University, Mar. 2018.
74. Descartes and the Active Brain. Conference on Philosophy of Mind in Early Modern Philosophy, Princeton, Apr. 2018.
75. Mind and Psychology in Descartes. Colloquium, History of Modern Philosophy group, University of Paris Nanterre, May, 2018.
76. Descartes and the Active Brain. Colloquium, Institut d'Histoire des Representations et des Idee dans les Modernite, ENS, Lyon, Dec. 2018.
77. Gibson and Gestalt: (Re)Presentation, Processing, and Construction. Department of Philosophy, University Aix-Marseilles, Aix-en-Provence, Dec., 2018.
78. "Phenomenally Converging Railway Tracks: A Misperception?" conference on The Philosophy and Psychology of Visual Space: An Interdisciplinary Workshop, Ohio State University, Feb. 2019.
79. Descartes and the Active Brain. Colloquium, Department of Philosophy, Bryn Mawr College, Mar., 2019.
80. Gibson and the Geometric Layout: Not Ecological Enough? International Conference on Perception and Action, Groningen, 3-6 July 2019.
81. The Corporeal Idea of Distance: Information Processing or Mechanical Correlation? International conference: Le cerveau cartesien: problemes et controverses, Sorbonne, Paris, 11-12 Oct. 2019.
82. Phenomenally Converging Railway Tracks: A Misperception? Philosophy Colloquium, McMaster University, 8 Nov. 2019.
83. Comment on papers by Spener and Prueitt. Session on the History of Introspection, Am. Phil. Assoc., Philadelphia, 8 Jan. 2020.
84. L'Homme / De Homine: Images as Interpretations. Cartesian Images: Picturing Natural Philosophy in the Seventeenth Century, Institute of Philosophy, KU Leuven, Oct. 26, 2020.
85. Gibson and the Geometric Layout: Not Ecological Enough? First International Philosophy Colloquium of the Federal University of Santa Catarina, on "Environment -- spatialities and temporalities," Florianopolis, 25 Nov. 2020.
86. The Corporeal Idea of Distance: Information Processing or Mechanical Correlation? Penelope Maddy Colloquium, UCI, 15 Jan. 2021.
87. Gestalt Psychology and William Epstein. Joint Philosophy/Psychology Study Group, New School for Social Research, 5 Mar. 2021.
88. The Subjectivity of Visual Space: Descartes and After. Issues in Modern Philosophy, Special Edition: Nature, Mind, Freedom. NYU, May 14-15, 2022.
89. Russell and Behaviorism. Analysis of Mind Centenary, Bertrand Russell Research Centre, McMaster University, June 2022.
90. Phenomenally Converging Railway Tracks: A Misperception? Anniversary Conference, Leibniz University Hannover, June 2022.
91. Descartes' Visual Space: Subjectively Conditioned and Embodied. Historical Cognitive Science: Brains, Minds, Motions. ENS Lyon, 10-11 Mar 2023.