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  Distortions in reproduction of two-interval rhythms: When the "attractor ratio" is not exactly 1:2

Repp, B. H., London, J., & Keller, P. E. (2012). Distortions in reproduction of two-interval rhythms: When the "attractor ratio" is not exactly 1:2. Music Perception, 30(2), 205-223. doi:10.1525/MP.2012.30.2.205.

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 Creators:
Repp, Bruno H.1, Author
London, Justin2, Author
Keller, Peter E.3, Author           
Affiliations:
1Haskins Laboratories, New Haven, CT, USA, ou_persistent22              
2Carleton College, Northfield, MN, USA, ou_persistent22              
3Max Planck Research Group Music Cognition and Action, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634555              

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 Abstract: when rhythms consisting of two unequal intervals are reproduced cyclically, their interval ratio tends to be distorted in the direction of 1:2 (= 0.5), which thus seems to function as an “attractor ratio” (AR). However, recent results for musicians in a synchronization task (Repp, London, & Keller, 2011) have suggested an upward-shifted AR (USAR) somewhat greater than 0.5. Three new experiments suggest that this shift is not due to synchronization versus continuation tapping, the range of interval ratios employed, unimanual versus bimanual tapping, intensity differences between taps, or mental subdivision of the long interval, although some of these factors may affect its size. The new results also show that the USAR is found more consistently in musicians than in nonmusicians and seems to arise in rhythm production, not in perception. While the exact causes of the USAR remain unclear, the results suggest that the AR is not necessarily the mathematically simplest interval ratio.

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Language(s): eng - English
 Dates: 2012-05-152012-12
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1525/MP.2012.30.2.205
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Title: Music Perception
Source Genre: Journal
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Publ. Info: Berkeley, CA : University of California Press
Pages: - Volume / Issue: 30 (2) Sequence Number: - Start / End Page: 205 - 223 Identifier: ISSN: 0730-7829
CoNE: https://pure.mpg.de/cone/journals/resource/954925533029