Edges and surfaces in the inferior temporal cortex of the macaque -- an electrophysiological study

Abstract

Event Abstract Back to Event Edges and surfaces in the inferior temporal cortex of the macaque -- an electrophysiological study Peter Kaposvari1, Gyula Sary1, Gyorgy Benedek1 and Tamas Tompa1* 1 Dept of Physiology, University of Szeged, Hungary In everyday situations we recognize objects on the basis of their colorful retinal image, or, at the extreme, their silhouette (in contre-jour situations). However, we recognize quite well the line-drawing (LD) representations of objects and people; sometimes even feeling this kind of depiction more informative than a simple picture, although our natural environment hardly contains line-drawn objects. In the metaanalysis of our data from earlier experiments we wanted to check if we can find any hints about the neural basis of these representations in the area thought to have a seminal importance in object recognition, the inferotemporal cortex. Our findings suggest that these are indeed two distinct populations of neurons contributing to the two different kinds of representations. If we were looking for single cells using our set of complex, coloured stimuli, then, when being shown the LD versions of the same stimuli, the firing rate of the neurons was very low, and the cells seemingly lost their selectivity. On the other hand, if the hunting stimuli were the LDs, the firing rate of the IT neurons was the same than for the COLs and they exhibited a strong selectivity, markedly different from that given to surface-defined stimuli. Conference: 12th Meeting of the Hungarian Neuroscience Society, Budapest, Hungary, 22 Jan - 24 Jan, 2009. Presentation Type: Poster Presentation Topic: Research on the cerebral cortex and related structures Citation: Kaposvari P, Sary G, Benedek G and Tompa T (2009). Edges and surfaces in the inferior temporal cortex of the macaque -- an electrophysiological study. Front. Syst. Neurosci. Conference Abstract: 12th Meeting of the Hungarian Neuroscience Society. doi: 10.3389/conf.neuro.01.2009.04.200 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: 06 Mar 2009; Published Online: 06 Mar 2009. * Correspondence: Tamas Tompa, Dept of Physiology, University of Szeged, Szeged, Hungary, ttompa@phys.szote.u-szeged.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 Peter Kaposvari Gyula Sary Gyorgy Benedek Tamas Tompa Google Peter Kaposvari Gyula Sary Gyorgy Benedek Tamas Tompa Google Scholar Peter Kaposvari Gyula Sary Gyorgy Benedek Tamas Tompa PubMed Peter Kaposvari Gyula Sary Gyorgy Benedek Tamas Tompa 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.