Event Abstract Back to Event Visual mismatch negativity: change detection or violation of regulations István Czigler1* 1 Hungarian Academy of Sciences, Hungary Conspicuous phenomena (e.g. change blindness) indicate the necessity of focal attention for the phenomenal experience of changing visual scenes. However, implicit changes are registered within various levels of the visual system, and such changes are accompanied by behavioral effects, like detection efficiency. The results of a series of experiments using the method of event-related brain activity suggest the emergence of event-related potential (ERP) components sensitive to changing visual features (e.g. color, spatial frequency, motion direction) outside focus of spatial attention. These ERP components reflect mismatch processes between memory representations and the representation of the ongoing stimulation. According to these findings, beside the storage of stimulus features, this memory preserves the conjunction of visual features (i.e. visual objects). Furthermore, this memory system registers sequential rules, and integrates events into units (temporal windows) of ~200 ms duration. In a change-blindness-related paradigm, having established the representation stimulus regularity, violation of regularity (stimulus change) resulted in the emergence ERP components, mainly over the posterior cortex. Event-related brain activities become markedly different for detected changes of the visual stimulation, even if such stimulation were unrelated to the ongoing task. Conference: 10th International Conference on Cognitive Neuroscience, Bodrum, Turkey, 1 Sep - 5 Sep, 2008. Presentation Type: Oral Presentation Topic: Change Detection Citation: Czigler I (2008). Visual mismatch negativity: change detection or violation of regulations. Conference Abstract: 10th International Conference on Cognitive Neuroscience. doi: 10.3389/conf.neuro.09.2009.01.155 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: 05 Dec 2008; Published Online: 05 Dec 2008. * Correspondence: István Czigler, Hungarian Academy of Sciences, Budapest, Hungary, czigler.istvan@ttk.mta.hu 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 István Czigler Google István Czigler Google Scholar István Czigler PubMed István Czigler 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.