Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans

Humans tend to spontaneously align their movements in response to visual (e.g., swinging pendulum) and auditory rhythms (e.g., hearing music while walking). Particularly in the case of the response to auditory rhythms, neuroscientific research has indicated that motor resources are also recruited wh...

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Main Authors:	Hattori, Yuko, Tomonaga, Masaki, Matsuzawa, Tetsuro
Format:	Online
Language:	English
Published:	Public Library of Science 2015
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4488575/

id	pubmed-4488575
recordtype	oai_dc
spelling	pubmed-44885752015-07-14 Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans Hattori, Yuko Tomonaga, Masaki Matsuzawa, Tetsuro Research Article Humans tend to spontaneously align their movements in response to visual (e.g., swinging pendulum) and auditory rhythms (e.g., hearing music while walking). Particularly in the case of the response to auditory rhythms, neuroscientific research has indicated that motor resources are also recruited while perceiving an auditory rhythm (or regular pulse), suggesting a tight link between the auditory and motor systems in the human brain. However, the evolutionary origin of spontaneous responses to auditory rhythms is unclear. Here, we report that chimpanzees and humans show a similar distractor effect in perceiving isochronous rhythms during rhythmic movement. We used isochronous auditory rhythms as distractor stimuli during self-paced alternate tapping of two keys of an electronic keyboard by humans and chimpanzees. When the tempo was similar to their spontaneous motor tempo, tapping onset was influenced by intermittent entrainment to auditory rhythms. Although this effect itself is not an advanced rhythmic ability such as dancing or singing, our results suggest that, to some extent, the biological foundation for spontaneous responses to auditory rhythms was already deeply rooted in the common ancestor of chimpanzees and humans, 6 million years ago. This also suggests the possibility of a common attentional mechanism, as proposed by the dynamic attending theory, underlying the effect of perceiving external rhythms on motor movement. Public Library of Science 2015-07-01 /pmc/articles/PMC4488575/ /pubmed/26132703 http://dx.doi.org/10.1371/journal.pone.0130682 Text en © 2015 Hattori et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Hattori, Yuko Tomonaga, Masaki Matsuzawa, Tetsuro
spellingShingle	Hattori, Yuko Tomonaga, Masaki Matsuzawa, Tetsuro Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans
author_facet	Hattori, Yuko Tomonaga, Masaki Matsuzawa, Tetsuro
author_sort	Hattori, Yuko
title	Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans
title_short	Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans
title_full	Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans
title_fullStr	Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans
title_full_unstemmed	Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans
title_sort	distractor effect of auditory rhythms on self-paced tapping in chimpanzees and humans
description	Humans tend to spontaneously align their movements in response to visual (e.g., swinging pendulum) and auditory rhythms (e.g., hearing music while walking). Particularly in the case of the response to auditory rhythms, neuroscientific research has indicated that motor resources are also recruited while perceiving an auditory rhythm (or regular pulse), suggesting a tight link between the auditory and motor systems in the human brain. However, the evolutionary origin of spontaneous responses to auditory rhythms is unclear. Here, we report that chimpanzees and humans show a similar distractor effect in perceiving isochronous rhythms during rhythmic movement. We used isochronous auditory rhythms as distractor stimuli during self-paced alternate tapping of two keys of an electronic keyboard by humans and chimpanzees. When the tempo was similar to their spontaneous motor tempo, tapping onset was influenced by intermittent entrainment to auditory rhythms. Although this effect itself is not an advanced rhythmic ability such as dancing or singing, our results suggest that, to some extent, the biological foundation for spontaneous responses to auditory rhythms was already deeply rooted in the common ancestor of chimpanzees and humans, 6 million years ago. This also suggests the possibility of a common attentional mechanism, as proposed by the dynamic attending theory, underlying the effect of perceiving external rhythms on motor movement.
publisher	Public Library of Science
publishDate	2015
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4488575/
_version_	1613242748049031168

Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans

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