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  Gestalt perception modulates early visual processing

Herrmann, C. S., & Bosch, V. (2001). Gestalt perception modulates early visual processing. NeuroReport, 12(5), 901-904.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-B7F3-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-29E2-2
Genre: Journal Article

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 Creators:
Herrmann, Christoph S.1, Author              
Bosch, Volker1, Author              
Affiliations:
1MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              

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Free keywords: EEG; ERP; Gestalt perception; Illusory contours; Kanizsa figures; N170; VEP
 Abstract: We examined whether early visual processing reflects perceptual properties of a stimulus in addition to physical features. We recorded event-related potentials (ERPs) of 13 subjects in a visual classification task. We used four different stimuli which were all composed of four identical elements. One of the stimuli constituted an illusory Kanizsa square, another was composed of the same number of collinear line segments but the elements did not form a Gestalt. In addition, a target and a control stimulus were used which were arranged differently. These stimuli allow us to differentiate the processing of colinear line elements (stimulus features) and illusory figures (perceptual properties). The visual N170 in response to the illusory figure was significantly larger as compared to the other collinear stimulus. This is taken to indicate that the visual N170 reflects cognitive processes of Gestalt perception in addition to attentional processes and physical stimulus properties.

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Language(s): eng - English
 Dates: 2001
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 239627
ISI: 000167905600008
Other: P7015
 Degree: -

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Title: NeuroReport
Source Genre: Journal
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Affiliations:
Publ. Info: Oxford, UK : Rapid Communications of Oxford Ltd.
Pages: - Volume / Issue: 12 (5) Sequence Number: - Start / End Page: 901 - 904 Identifier: ISSN: 0959-4965
CoNE: https://pure.mpg.de/cone/journals/resource/954925578070