Document Detail

Use of magnitude-estimation scaling for predicting hemispheric processing of lexical decisions.
MedLine Citation:
PMID:  8337059     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to evaluate the usefulness and validity of magnitude-estimation scaling as an alternative to a traditional, somewhat more cumbersome reaction-time procedure in the assessment of hemispheric processing asymmetry. Lexical decision vocal reaction times and magnitude-estimation scaling values were obtained for 16 normal subjects to tachistoscopically presented concrete and abstract words. Analysis of variance showed identical interactions of field x stimuli for each dependent variable while all pair-wise correlations between these measures were significant. Magnitude-estimation scaling may be a sensitive measure of visual psychophysical differences in hemispheric processing and may circumvent problems with variance of latencies associated with disordered populations.
L W Ellis; J N Kaderavek; M P Rastatter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perceptual and motor skills     Volume:  76     ISSN:  0031-5125     ISO Abbreviation:  Percept Mot Skills     Publication Date:  1993 Jun 
Date Detail:
Created Date:  1993-08-24     Completed Date:  1993-08-24     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401131     Medline TA:  Percept Mot Skills     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1147-52     Citation Subset:  IM    
Department of Special Education Services, University of Toledo, OH 43606.
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MeSH Terms
Decision Making*
Discrimination Learning
Dominance, Cerebral*
Pattern Recognition, Visual*
Reaction Time*
Reference Values

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