VMMN to color and orientation: the non-contingent capture

Abstract

Event Abstract Back to Event VMMN to color and orientation: the non-contingent capture István Sulykos1* and I Czigler1 1 Institute for Psychology, Hungarian Academy of Sciences, Hungary Event-related potentials were recorded to task-irrelevant frequent (standard) and rare (infrequent) visual stimuli. There were two kinds of deviancy: either the orientation or color of stimulus bars appearing on the visual background. Participants performed two tasks, either detection of the orientation-change, or the color-change of a central shape. Deviant stimuli elicited a posterior negative component in the 120-200 ms latency range (visual mismatch negativity; vMMN). Orientation-related vMMN was larger in the color task, whereas color-related vMMN was larger in the orientation task. Accordingly, a task sharing the dimension of the irrelevant deviant decreased the sensitivity of the system underlying the vMMN. A deviant event preceding the target detection had no influence on detection RT. However, RT was somewhat longer in sequences with irrelevant background changes sharing the dimension of the target change. These results show that registration background change and target detection are not independent, but the direction of the effect is opposite to the attention capture effect of in visual search studies. Conference: MMN 09 Fifth Conference on Mismatch Negativity (MMN) and its Clinical and Scientific Applications, Budapest, Hungary, 4 Apr - 7 Apr, 2009. Presentation Type: Poster Presentation Topic: Poster Presentations Citation: Sulykos I and Czigler I (2009). VMMN to color and orientation: the non-contingent capture. Conference Abstract: MMN 09 Fifth Conference on Mismatch Negativity (MMN) and its Clinical and Scientific Applications. doi: 10.3389/conf.neuro.09.2009.05.153 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: 26 Mar 2009; Published Online: 26 Mar 2009. * Correspondence: István Sulykos, Institute for Psychology, Hungarian Academy of Sciences, Budapest, Hungary, sulykos@cogpsyphy.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 Sulykos I Czigler Google István Sulykos I Czigler Google Scholar István Sulykos I Czigler PubMed István Sulykos I 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.