Document Detail

Delayed auditory feedback and movement.
MedLine Citation:
PMID:  21463087     Owner:  NLM     Status:  In-Data-Review    
It is well known that timing of rhythm production is disrupted by delayed auditory feedback (DAF), and that disruption varies with delay length. We tested the hypothesis that disruption depends on the state of the movement trajectory at the onset of DAF. Participants tapped isochronous rhythms at a rate specified by a metronome while hearing DAF (for piano tones) of differing lengths. Motion capture was used to analyze movement trajectories. Mean Inter-Response Intervals (IRIs) varied as an approximately sinusoidal function of feedback condition, with DAF causing slowed production for shorter delays and speeded production for faster delays. Motion capture analyses revealed that finger velocity at the time of DAF predicted the effect of DAF on mean IRI whereas finger position predicted the variability of IRIs. A second experiment in which participants were instructed to vary the timing of peak finger height confirmed that the effect of DAF on timing variability is directly influenced by the finger trajectory. (PsycINFO Database Record (c) 2011 APA, all rights reserved).
Peter Q Pfordresher; Simone Dalla Bella
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of experimental psychology. Human perception and performance     Volume:  37     ISSN:  1939-1277     ISO Abbreviation:  J Exp Psychol Hum Percept Perform     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-04-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502589     Medline TA:  J Exp Psychol Hum Percept Perform     Country:  United States    
Other Details:
Languages:  eng     Pagination:  566-79     Citation Subset:  IM    
Department of Psychology.
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