The timing of feedback to early visual cortex in the perception of long-range apparent motion

When 2 visual stimuli are presented one after another in different locations, they are often perceived as one, but moving object. Feedback from area human motion complex hMT/V5+ to V1 has been hypothesized to play an imp
When 2 visual stimuli are presented one after another in different locations, they are often perceived as one, but moving object. Feedback from area human motion complex hMT/V5+ to V1 has been hypothesized to play an important role in this illusory perception of motion. We measured event-related responses to illusory motion stimuli of varying apparent motion (AM) content and retinal location using Electroencephalography. Detectable cortical stimulus processing started around 60-ms poststimulus in area V1. This component was insensitive to AM content and sequential stimulus presentation. Sensitivity to AM content was observed starting around 90 ms post the second stimulus of a sequence and most likely originated in area hMT/V5+. This AM sensitive response was insensitive to retinal stimulus position. The stimulus sequence related response started to be sensitive to retinal stimulus position at a longer latency of 110 ms. We interpret our findings as evidence for feedback from area hMT/V5+ or a related motion processing area to early visual cortices (V1, V2, V3).
show moreshow less

Download full text files

Export metadata

  • Export Bibtex
  • Export RIS

Additional Services

    Share in Twitter Search Google Scholar
Metadaten
Author:Michael Wibral, Christoph Bledowski, Axel Kohler, Wolf Singer, Lars Muckli
URN:urn:nbn:de:hebis:30-60548
DOI:http://dx.doi.org/10.1093/cercor/bhn192
ISSN:1460-2199
ISSN:1047-3211
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=19008460
Parent Title (English):Cerebral cortex
Publisher:Oxford Univ. Press
Place of publication:Oxford
Document Type:Article
Language:English
Date of Publication (online):2008/11/13
Date of first Publication:2008/11/13
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2008/11/25
Tag:apparent motion ; electroencephalography ; event-related potential ; feedback ; visual illusion
Volume:19
Issue:7
Pagenumber:16
First Page:1567
Last Page:1582
Note:
© 2008 The Authors ; This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Cerebral Cortex Advance Access published November 13, 2008
HeBIS PPN:209219068
Institutes:Medizin
Frankfurt Institute for Advanced Studies (FIAS)
Dewey Decimal Classification:610 Medizin und Gesundheit
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

$Rev: 11761 $