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Author (up) Wühr, P. url  openurl
  Title Evidence for gating of direct response activation in the Simon task Type Journal Article
  Year 2005 Publication Psychonomic Bulletin & Review Abbreviated Journal  
  Volume 12 Issue 2 Pages 282-288  
  Keywords gating; response activation; Simon task; Simon effect; stimulus position; Sensory Gating; Spatial Organization; Stimulus Parameters  
  Abstract The Simon effect denotes faster responses when the task-irrelevant stimulus position corresponds to the response position than when it does not. Accounts of this effect assume that stimulus position automatically activates a spatially corresponding response while the correct response is being computed. Yet the Simon effect has been found to be reduced after noncorresponding trials. Some authors have interpreted these sequential modulations of the Simon effect as evidence for a mechanism gating position-based response activation. Alternatively, sequential modulations have been explained in terms of feature-integration processes, which depend upon the fact that different sequences of spatial-correspondence conditions covary with different degrees of feature overlap between subsequent trials. The present study investigates whether sequential modulations of the Simon effect can occur when feature overlap in the different conditions is the same. Therefore, a Simon task with four stimulus positions and two response positions was used. Sequential modulations of the Simon effect were found in trial sequences with constant amounts of feature overlap between trials. Although the feature-integration account cannot explain this result, it is consistent with the idea of a gating (i.e., cognitive control) mechanism. (PsycINFO Database Record (c) 2006 APA, all rights reserved) (from the journal abstract)  
  Corporate Author Thesis  
  Publisher Psychonomic Society Place of Publication WÃRhr, Peter, Institut fur Psychologie I, Friedrich-Alexander Universitat, Kochstrasse 4, 91054, Erl Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes 1069-9384Accession Number: 2005-07095-007. First Author & Affiliation: WÃRhr, Peter; Friedrich-Alexander Universitìt, Erlangen, Germany. Release Date: 20050718. Publication Type: Journal; Peer Reviewed Journal. Media Covered: Print. Media Available: Electronic; Print. Document Type: Original Journal Article. Language: English. Major Descriptor(s): Sensory Gating; Spatial Organization; Stimulus Parameters. Classification: Human Experimental Psychology (2300). Population: Human (10)Male (30)Female (40). Age Group:Adulthood (18 yrs & older) (300); . References Available: Y. Approved no  
  Call Number refbase @ user @ Wühr2005 Serial 4431  
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