Document Detail

Sequence effects in the categorization of tones varying in frequency.
MedLine Citation:
PMID:  14979815     Owner:  NLM     Status:  MEDLINE    
In contrast to exemplar and decision-bound categorization models, the memory and contrast models described here do not assume that long-term representations of stimulus magnitudes are available. Instead, stimuli are assumed to be categorized using only their differences from a few recent stimuli. To test this alternative, the authors examined sequential effects in a binary categorization of 10 tones varying in frequency. Stimuli up to 2 trials back in the sequence had a significant effect on the response to the current stimulus. The effects of previous stimuli interacted with one another. A memory and contrast model, according to which only ordinal information about the differences between the current stimulus and recent preceding stimuli is used, best accounted for these data.
Neil Stewart; Gordon D A Brown
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of experimental psychology. Learning, memory, and cognition     Volume:  30     ISSN:  0278-7393     ISO Abbreviation:  J Exp Psychol Learn Mem Cogn     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2004-02-24     Completed Date:  2004-06-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8207540     Medline TA:  J Exp Psychol Learn Mem Cogn     Country:  United States    
Other Details:
Languages:  eng     Pagination:  416-30     Citation Subset:  IM    
Department of Psychology, University of Warwick, Coventry, United Kingdom.
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MeSH Terms
Loudness Perception
Mental Recall*
Models, Psychological
Models, Statistical
Pitch Discrimination*
Probability Learning
Retention (Psychology)
Serial Learning*
Sound Spectrography

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