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• W2328200072 abstract "Event Abstract Back to Event Perceptual hysteresis and adaptation are expressed in distinct cortical networks Caspar M. Schwiedrzik1*, Frauke Leitner1, Wolf Singer1, Christian C. Ruff2 and Lucia Melloni1 1 Max Planck Institute for Brain Research, Germany 2 Laboratory for Social and Neural Systems Research, University of Zürich, Switzerland Our current perception is profoundly influenced by experiences made on the previous trial. In particular, two apparently opposing carry-over effects can occur: Perceptual hysteresis (the tendency to stabilize a percept) and adaptation. It is currently under debate whether these two effects depend on the same circuits in the brain. Here, we investigate hysteresis and adaptation in multistable dot lattices. Multistable stimuli are particularly informative because they allow separating trial-by-trial effects on the level of the stimulus from those on the level of the percept. Psychophysically, we show that adaptation depends on the stimulus, and not on conscious perception, contrary to hysteresis. In a functional Magnetic Resonance Imaging experiment, we find that hysteresis and adaptation also map into two separate cortical networks: Hysteresis is reflected by activity in ventral occipital, parietal, and frontal areas. In contrast, adaptation is correlated with activity in extrastriate areas only. These results indicate that hysteresis is not confined to visual areas in which orientation is explicitly coded, but involves higher-order areas as well. In contrast, adaptation is due to effects in early visual cortex. The finding that adaptation occurs only in a local occipital network, whereas hysteresis involves a distributed fronto-parietal network may explain why adaptation does not depend on conscious perception. Keywords: Awareness, Hysteresis Conference: XI International Conference on Cognitive Neuroscience (ICON XI), Palma, Mallorca, Spain, 25 Sep - 29 Sep, 2011. Presentation Type: Poster Presentation Topic: Poster Sessions: Consciousness and Awareness Citation: Schwiedrzik CM, Leitner F, Singer W, Ruff CC and Melloni L (2011). Perceptual hysteresis and adaptation are expressed in distinct cortical networks. Conference Abstract: XI International Conference on Cognitive Neuroscience (ICON XI). doi: 10.3389/conf.fnhum.2011.207.00051 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 15 Nov 2011; Published Online: 25 Nov 2011. * Correspondence: Dr. Caspar M Schwiedrzik, Max Planck Institute for Brain Research, Frankfurt, Germany, caspar.schwiedrzik@brain.mpg.de Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Caspar M Schwiedrzik Frauke Leitner Wolf Singer Christian C Ruff Lucia Melloni Google Caspar M Schwiedrzik Frauke Leitner Wolf Singer Christian C Ruff Lucia Melloni Google Scholar Caspar M Schwiedrzik Frauke Leitner Wolf Singer Christian C Ruff Lucia Melloni PubMed Caspar M Schwiedrzik Frauke Leitner Wolf Singer Christian C Ruff Lucia Melloni Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page." @default.
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• W2328200072 title "Perceptual hysteresis and adaptation are expressed in distinct cortical networks" @default.
• W2328200072 doi "https://doi.org/10.3389/conf.fnhum.2011.207.00051" @default.
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