Visitors and Partners

If you are interested in visiting the group or in becoming a collaboration partner, please do not hesitate to contact us via peter.broessel[at] We are also willing (actually, we would be very happy) to support applications for third-party funding to visit the group. In the following, we list our visitors and partners.


Jim Pryor (New York University, May 2018-July 2019)

JimJames Pryor is a Professor of Philosophy at New York University. He obtained his PhD in philosophy in 1997 from Princeton University, and has also taught at Harvard and Princeton. He works primarily in epistemology and formal semantics, with a special interest in issues at the intersection of philosophy, linguistics, and computer science. His work and teaching also often take him into philosophy of mind, metaphysics, logic, ethics, and the philosophy of action. His recent publications in epistemology include “The Merits of Incoherence” (Analytic Philosophy, 2018) and “Problems for Credulism” (in Chris Tucker, ed., Seemings and Justification, Oxford, 2013); In philosophy of language and mind they include “De Jure Codesignation” (in Bob Hale, Alex Miller, and Crispin Wright, eds., A Companion to the Philosophy of Language, 2nd ed., Blackwell, 2017) and “Mental Graphs” (Review of Philosophy and Psychology, 2016). From June 2018 until August 2019 he’ll be on sabbatical and working on topics related to perception with the Emmy Noether Research Group From Perception To Belief and Back Again headed by Peter Brössel; and also on his other projects in epistemology and semantics. (Here you can find more information about Jim.)

Giulia Martina (Warwick, June & July 2019)

GiuliaGiulia Martina is a final-year PhD student in Philosophy at the University of Warwick, where she is writing a thesis on objectivist accounts of perceptual appearances under the supervision of Matt Nudds. Among the topics she is interested in are: the nature of perceivable properties, perceptual variation, illusions, the relation between perception and cognition, olfactory perception. She will be visiting the Research Group in June and July 2019. (Here you can find more information about Giulia.)

Christos Georgakakis (May, June & July 2019)

Christos Geogakakis photoChristos is a second-year Ph.D. student in Philosophy at the University of Aberdeen. His research is focused on internalist and externalist theories of epistemic justification, and more specifically on the epistemic consequences of cognitive penetrability of perception. Besides epistemology, the areas of his academic interest include metaethics and philosophy of education. (Here you can find more information about Christos.)


Dan Burnston (Tulane, May & June 2019)

DBurnstonDan Burnston is an Assistant Professor in the Philosophy Department at Tulane University, and a member faculty in the Tulane Brain Institute.  He works on a variety of issues in philosophy of mind, philosophy of neuroscience, and philosophy of Biology.  Dan’s work in philosophy of perception focuses on perceptual architecture, the perception/cognition distinction, perceptual learning, and higher-level perceptual content.  A full list of Dan’s publications can be found here.


Christian Piller (York, January 2019)


Christian Piller is a Senior Lecturer at the Department of Philosophy of the University of York. He is working in ethics (theoretical and applied), in reasons and rationality, and in epistemology. (Here you can find more information about Christian.)


Harmen Ghijsen (Radboud, April-May 2018)

1223840.jpegHarmen Ghijsen is a philosopher working within the Cognition, Culture, and Language research group at Radboud University. He obtained his PhD in philosophy in 2014 at KU Leuven and is currently working on the NWO-funded (Netherlands Organisation for Scientific Research) project “Should we trust our own eyes? Challenges from cognitive penetration and implicit bias”. His area of expertise is the philosophy of perception, and he has worked and published on topics related to epistemology, philosophy of mind and philosophy of science. His key publications include his monograph “The Puzzle of Perceptual Justification” (2016, Springer) and research articles “The Real Epistemic Problem of Cognitive Penetration” (2016, Philosophical Studies) and “Predictive Processing and Foundationalism about Perception” (2018, Synthese). From April to May 2018 he was working on topics related to perception and unconscious inference with our Emmy Noether Research Group From Perception To Belief and Back Again. (Here you can find more information about Harmen.)

Partner Groups

Individual Partners