Document Detail


Expectancy in humans in multisecond peak-interval timing with gaps.
MedLine Citation:
PMID:  19429959     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In two experiments, the peak-interval procedure was used with humans to test effects related to gaps in multisecond timing. In Experiment 1, peak times of response distributions were shorter when the gap occurred later during the encoding of the criterion time to be reproduced, suggesting that gap expectancy shortened perceived durations. Peak times were also positively related to objective target durations. Spreads of response distributions were generally related to estimated durations. In Experiment 2, peak times were shortest when gaps were expected but did not occur, confirming that the shortening effect of gap expectancy is independent of the gap occurrence. High positive start-stop correlations and moderate positive peak-time-spread correlations showed strong memory variability, whereas low and negative start-spread correlations suggest small response-threshold variability. Correlations seemed not to be influenced by expectancy. Overall, the peak-interval procedure with gaps provided relevant information on similarities and differences in timing in humans and other animals.
Authors:
Claudette Fortin; Steve Fairhurst; Chara Malapani; Caroline Morin; James Towey; Warren H Meck
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Attention, perception & psychophysics     Volume:  71     ISSN:  1943-3921     ISO Abbreviation:  Atten Percept Psychophys     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-05-11     Completed Date:  2009-07-13     Revised Date:  2011-02-24    
Medline Journal Info:
Nlm Unique ID:  101495384     Medline TA:  Atten Percept Psychophys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  789-802     Citation Subset:  IM    
Affiliation:
Université Laval, Québec City, Québec, Canada. claudette.fortin@psy.ulaval.ca
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Attention*
Auditory Perception*
Discrimination Learning*
Feedback
Female
Humans
Judgment
Male
Memory, Short-Term*
Practice (Psychology)
Psychoacoustics
Psychomotor Performance
Psychophysics
Sensory Thresholds
Time Perception*
Young Adult

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


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