Document Detail

Attention modulates spatio-temporal grouping.
MedLine Citation:
PMID:  21266181     Owner:  NLM     Status:  MEDLINE    
Dynamic stimuli are ubiquitous in natural viewing conditions implying that grouping operations need to operate, not only in space, but also jointly in space and time. Moreover, in natural viewing, attention plays an important role in controlling how resources are allocated. We investigated how attention interacts with spatio-temporal perceptual grouping by using a bistable stimulus, called the Ternus-Pikler display. Ternus-Pikler displays can give rise to two different motion percepts, called Element Motion (EM) and Group Motion (GM), the former dominating at short Inter-Stimulus Intervals (ISIs) and the latter at long ISIs. Our results indicate that GM grouping requires more attentional resources than EM grouping. Different theoretical accounts of perceptual grouping and attention are discussed and evaluated in the light of the current results.
Murat Aydın; Michael H Herzog; Haluk Oğmen
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2011-01-23
Journal Detail:
Title:  Vision research     Volume:  51     ISSN:  1878-5646     ISO Abbreviation:  Vision Res.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-03-01     Completed Date:  2011-05-06     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  435-46     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77024-4005, USA.
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MeSH Terms
Attention / physiology*
Motion Perception / physiology*
Pattern Recognition, Visual
Photic Stimulation / methods
Grant Support
R01 EY018165/EY/NEI NIH HHS; R01 EY018165-01A1/EY/NEI NIH HHS; R01 EY018165-02/EY/NEI NIH HHS

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