Symposium (S4): Visual Perception in Schizophrenia: Vision Research, Computational Neuroscience, and PsychiatryWednesday 28 August 2013, 09:00-11:00, Kaisen | |
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| Organizer: C Teufel The sensory and perceptual experiences of schizophrenic patients are often unusual and highly unpleasant. The best-known and most staggering of these symptoms are hallucinations. The fact that our visual system has the potential to create a full-blown percept in the absence of an appropriate stimulus is remarkable, and a better understanding of this phenomenon is bound to shed light on some of the most fundamental aspects of biological vision. A better understanding of visual perception in schizophrenia might therefore not only be useful for developing more targeted interventions in patients but will also provide important insights into healthy vision. An integration of efforts from vision research, psychiatry, and computational neuroscience is crucial in order to achieve real progress in this domain. This symposium will therefore take a holistic and interdisciplinary perspective to address two related questions. First, the symposium will attempt to shed light on how low-level perceptual abnormalities might contribute to the high-level symptoms that are reported by schizophrenic patients. Second, the symposium will explore what the abnormalities in sensory and perceptual processing in schizophrenia can tell us about the healthy visual system. A particular focus will be on the potential of computational neuroscience to provide the tools for addressing these questions in a principled manner. | |
| 09:00 | Introduction: Visual Perception, Psychosis, and Computational Psychiatry P Fletcher |
| 09:10 | Deficits in the processing of visual context associated with schizophrenia S C Dakin, M S Tibber, E Anderson, V Robol |
| 09:30 | Loopy inference in schizophrenia S Deneve, R Jardri |
| 09:50 | Altered contextual modulation of primary visual cortex responses in schizophrenia P Sterzer, K Seymour |
| 10:10 | Feedback Processes in the Visual System of Psychosis-Prone Individuals C Teufel, N Subramaniam, V Dobler, I Goodyer, P Fletcher |
| 10:30 | Discussion R Jardri |
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