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-August 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.)

Luca Moretti (Aberdeen, July 2018, May 2019)


Luca Moretti is Reader at the Department of Philosophy of the University of Aberdeen and a (five-year) Visiting Professor at the Munich Center for Mathematical Philosophy. His current areas of investigation are general epistemology, social epistemology, formal epistemology, philosophical logic, and metaphysics. (Here you can find more information about Luca.)


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)

image001Harmen 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