| Optimal encoding of interval timing in expert percussionists. | |
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MedLine Citation:
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PMID: 22262903 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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We measured temporal reproduction in human subjects with various levels of musical expertise: expert drummers, string musicians, and non-musicians. While duration reproduction of the non-percussionists showed a characteristic central tendency or regression to the mean, drummers responded veridically. Furthermore, when the stimuli were auditory tones rather than flashes, all subjects responded veridically. The behavior of all three groups in both modalities is well explained by a Bayesian model that seeks to minimize reproduction errors by incorporating a central tendency prior, a probability density function centered at the mean duration of the sample. We measured separately temporal precision thresholds with a bisection task; thresholds were twice as low in drummers as in the other two groups. These estimates of temporal precision, together with an adaptable Bayesian prior, predict well the reproduction results and the central tendency strategy under all conditions and for all subject groups. These results highlight the efficiency and flexibility of sensorimotor mechanisms estimating temporal duration. |
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Authors:
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Guido Marco Cicchini; Roberto Arrighi; Luca Cecchetti; Marco Giusti; David C Burr |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of neuroscience : the official journal of the Society for Neuroscience Volume: 32 ISSN: 1529-2401 ISO Abbreviation: J. Neurosci. Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-01-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8102140 Medline TA: J Neurosci Country: United States |
Other Details:
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Languages: eng Pagination: 1056-60 Citation Subset: IM |
Affiliation:
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Consiglio Nazionale delle Ricerche Institute of Neuroscience, Pisa 56124, Italy, and Department of Psychology, University of Florence, Florence 50125, Italy. |
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