Document Detail


Stimulus-response compatibility for left-right discriminations as a function of stimulus position.
MedLine Citation:
PMID:  6218236     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In two experiments, choice response times to visual stimuli (word and arrow) were measured. The stimuli were presented briefly (180 msec) in left and right visual half-field (VHF). Each stimulus required a left-right discrimination; however, half the stimuli were positive (e.g., LEFT), and half were negative (e.g., NOT RIGHT). In Experiment 1, button-pressing responses in the midsagittal plane were used; in Experiment 2, vocal responses were used. There was a strong stimulus-response (S-R) compatibility effect, influenced by the interaction of negation (positive vs. negative) and stimulus position (VHF). Latencies were faster to positive stimuli whose direction and VHF matched than to positive stimuli whose direction and VHF did not correspond. Conversely, latencies were faster to negative stimuli when response direction and VHF did not match than when direction and VHF did correspond. These results replicate the S-R compatibility effect found by Whitaker (1980) using foveal stimuli. The results were analyzed with regard to a hemisphere activation model proposed by Cotton, Tzeng, and Hardyck (1980) but were found to fit Whitaker's (1980) model better.
Authors:
L A Whitaker
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of experimental psychology. Human perception and performance     Volume:  8     ISSN:  0096-1523     ISO Abbreviation:  J Exp Psychol Hum Percept Perform     Publication Date:  1982 Dec 
Date Detail:
Created Date:  1983-03-11     Completed Date:  1983-03-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7502589     Medline TA:  J Exp Psychol Hum Percept Perform     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  865-74     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Discrimination Learning*
Dominance, Cerebral*
Functional Laterality
Humans
Motor Skills
Orientation*
Reaction Time
Visual Fields
Visual Perception*

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


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