Document Detail

The time course of task switching: a speed--accuracy trade-off analysis.
MedLine Citation:
PMID:  19744943     Owner:  NLM     Status:  MEDLINE    
On each trial of this study, participants either switched between or repeated two simple, two-choice tasks involving either letter or digit classifications. Speed-accuracy trade-off (SAT) curves were obtained using the response-signal method of eliciting speeded responses at various response time lags after the presentation of the stimulus for the second task. The key finding from separate analyses of the three SAT-curve parameters (intercept, rate, and asymptote) was that the location of the intercept of the SAT function (i.e., the point at which responding rises above chance) was shifted upward for both short and long response-stimulus intervals under task-switch conditions but only when the responses associated with each of the letter-digit stimulus components were incompatible.
Hossein Samavatyan; Craig Leth-Steensen
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Memory & cognition     Volume:  37     ISSN:  0090-502X     ISO Abbreviation:  -     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-09-11     Completed Date:  2009-11-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0357443     Medline TA:  Mem Cognit     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1051-8     Citation Subset:  IM    
Carleton University, Ottawa, Ontario, Canada.
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MeSH Terms
Association Learning
Choice Behavior*
Color Perception
Discrimination (Psychology)*
Pattern Recognition, Visual*
Reaction Time*
Reversal Learning*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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