Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans.
Distractor Effect of Auditory Rhythms on Self-Paced Tapping in Chimpanzees and Humans.
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DOI：
10.1371/journal.pone.0130682
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Matsuzawa T
中科院分区：
文献类型：
--
作者：
Hattori Y;Tomonaga M;Matsuzawa T
人类倾向于自发地根据视觉(例如摆动的钟摆)和听觉(例如走路时听到音乐)的节奏来调整自己的运动。尤其是在对听觉节奏的反应方面，神经科学研究表明，在感知听觉节奏(或规则的脉搏)的同时，也会招募运动资源，这表明人类大脑中的听觉系统和运动系统之间存在紧密联系。然而，对听觉节律的自发反应的进化起源尚不清楚。在这里，我们报告，在有节奏的运动中，黑猩猩和人类在感知等时节律方面表现出类似的分心效应。在人类和黑猩猩以自定节奏交替敲击电子键盘上的两个键时，我们使用等时听觉节奏作为分心刺激。当节拍与自发运动节拍相似时，敲击开始受间歇性夹带对听觉节律的影响。尽管这种效应本身并不是一种高级的节奏能力，比如跳舞或唱歌，但我们的结果表明，在某种程度上，对听觉节奏的自发反应的生物学基础已经深深植根于600万年前黑猩猩和人类的共同祖先。这也表明了动态注意理论提出的共同注意机制的可能性，这种机制是感知外部节律对运动运动的影响的基础。
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.
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