Speech-like orofacial oscillations in stump-tailed macaque (Macaca arctoides) facial and vocal signals.
Speech-like orofacial oscillations in stump-tailed macaque (Macaca arctoides) facial and vocal signals.
复制标题
断尾猕猴（Macaca arctoides）面部和声音信号中类似言语的口面部振荡。
DOI：
10.1002/ajpa.23276
复制
发表时间：
2017
影响因子：
2.8
通讯作者：
H. Koda.
中科院分区：
文献类型：
--
作者：
A. Toyoda;T Maruhashi;S Malaivijitnond;H. Koda.
言语是人类所特有的，其特征是唇、嘴或下颌运动的105 Hz振荡的面部动作。咂唇是灵长类动物的一种面部表情，其特征是下巴和嘴唇垂直开合的振荡动作，表现出稳定的5 Hz振荡模式，与言语模式相匹配，这表明咂唇是言语的前兆。我们测试，如果面部或声音的行动表现出相同的振荡率被发现在各种社会背景下，在广泛的形式的面部或声音显示，表现出物种之间的多样性。Materials and MethodsWe观察了野生残尾猕猴（猕猴arctoides）的面部和声音的行动，并选择视频剪辑，包括面部显示（牙齿抖动; TC），气喘吁吁的电话，和喂养。结果面部表情（TC）和发声（喘息）频率分别为5.74 ± 1.19和6.71 ± 2.91 Hz，类似于报道的长尾猕猴的唇音和人类的语音。讨论这些结果表明，中央模式发生器的共同机制，口面部的运动，这将演变成语言。类似的喘息振荡，从不同的肌肉控制演变而来，而不是口面动作，这表明了猕猴感知显着性的感觉基础，特别是5赫兹的节奏。这支持了语音进化的预适应假设，该假设指出，在语音出现之前，猕猴和人类的共同祖先中存在一个用于5 Hz面部振荡和感知背景的中央模式发生器。
ObjectivesSpeech is unique to humans and characterized by facial actions of ∼5 Hz oscillations of lip, mouth or jaw movements. Lip‐smacking, a facial display of primates characterized by oscillatory actions involving the vertical opening and closing of the jaw and lips, exhibits stable 5‐Hz oscillation patterns, matching that of speech, suggesting that lip‐smacking is a precursor of speech. We tested if facial or vocal actions exhibiting the same rate of oscillation are found in wide forms of facial or vocal displays in various social contexts, exhibiting diversity among species.Materials and MethodsWe observed facial and vocal actions of wild stump‐tailed macaques (Macaca arctoides), and selected video clips including facial displays (teeth chattering; TC), panting calls, and feeding. Ten open‐to‐open mouth durations during TC and feeding and five amplitude peak‐to‐peak durations in panting were analyzed.ResultsFacial display (TC) and vocalization (panting) oscillated within 5.74 ± 1.19 and 6.71 ± 2.91 Hz, respectively, similar to the reported lip‐smacking of long‐tailed macaques and the speech of humans.DiscussionThese results indicated a common mechanism for the central pattern generator underlying orofacial movements, which would evolve to speech. Similar oscillations in panting, which evolved from different muscular control than the orofacial action, suggested the sensory foundations for perceptual saliency particular to 5‐Hz rhythms in macaques. This supports the pre‐adaptation hypothesis of speech evolution, which states a central pattern generator for 5‐Hz facial oscillation and perceptual background tuned to 5‐Hz actions existed in common ancestors of macaques and humans, before the emergence of speech.