Jasper Feyaerts

@jfeyaerts.bsky.social

psychologist & philosopher, assistant prof. clinical psychology @GhentUniversity. Co-organizer of the Too Mad to be True conferences. Interests in psychosis, delusions, phenomenology, mad studies, altered self/reality-experiences.

Our invited commentary on Andrea Raballo and colleagues discussion of our work on the revised ipseity-disorder model is now published. We clarify some potential misunderstandings and highlight outstanding issues in phenomenological self-disturbance research. Freely available through link below.

The Revised Ipseity-Disturbance Model of Schizophrenia and the Nature of Self-Disorder: A Commentary on Raballo et al. (2025)

Alterations of selfhood (self-disorders: SDs) have long been emphasized as central features of the schizophrenia-spectrum. In the last two decades, empiric

academic.oup.com

Symposium on #Self Disorders at #ICHR2025 @ccrosenphd.bsky.social on 20 year outcome for #depersonalization Julia Lebovitz on #embodiment @jfeyaerts.bsky.social on transparency Anne Giersch on #time perception & Louis Sass’s discussion @theichr.bsky.social

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The International Consortium on Hallucinations Research@theichr.bsky.social · last yr.

A fantastic start to #ICHR2025 at Vanderbilt - thank you @parkbmb.bsky.social @jfeyaerts.bsky.social Cherise Rosen, Julia Lebowitz, Anne Giersch & Louis Sass!

Louis Sass on zoom

My new book is now available, it is open access. I portray psychiatric diagnoses as being scientific despite not being natural kinds. I seek a middle ground between realism and constructivism by drawing upon various Kantian thinkers, especially Cassirer. #Philsci #Philpsy #Psychiatry #STS #Philsky

In Defence of Psychiatric Diagnoses

This open access book defends psychiatric diagnoses by portraying them as idealised models understood in a neo-Kantian sense.

link.springer.com

It's interesting how all the people who complain about how disabilities or illnesses have become identities seem fine with people identifying as well, healthy, or normal. I think if anything there is a much larger identity politics of this latter sort.

This is important work towards the better integration of phenomenological and predictive coding approaches of primary delusions. Imo follow-up needed with phenomenologically more sensitive measures and theoretical work on application counterfactual learning to explain sense of reality.

Phil Corlett@philcorlett.bsky.social · 2y ago

New from us: People with delusions sometimes feel that the world is unreal. Here, we explain this in terms of prediction errors, with Kamin blocking behavioral and computational data from patients, psychics, and controls www.biologicalpsychiatrycnni.org/article/S245...

Just received word that our Deluded By Experience project--a longitudinal study combining phenomenological theory, experience-sampling & qualitative research to identify the experiential mechanisms of delusion formation in psychosis--got accepted for funding by the FWO. Hooray! 🥳