Of mice, monkeys, and men: physiological and morphological evidence for evolutionary divergence of function in mimetic musculature.
Of mice, monkeys, and men: physiological and morphological evidence for evolutionary divergence of function in mimetic musculature.
复制标题
DOI：
10.1002/ar.22913
复制
发表时间：
2014-07
影响因子：
2
通讯作者：
Parr, Lisa A.
中科院分区：
文献类型：
--
作者：
Burrows, Anne M.;Durham, Emily L.;Matthews, Lea C.;Smith, Timothy D.;Parr, Lisa A.
面部表情是人类和许多其他灵长类动物的一种普遍的视觉交流方式。在灵长类动物中，人类拥有最复杂的面部展示能力，但粗略的形态学研究并未发现人类模仿肌肉结构的更复杂。本研究对模拟肌肉的显微解剖学方面进行了研究，以检验与人类模拟肌肉的生理、功能和进化形态相关的假说。采集了实验小鼠(n=3)、恒河猴(n=3)和人类(n=3)的口轮匝肌(OOM)和颧大肌(ZM)标本。计算纤维类型比例(慢抽动和快抽动)、纤维横截面积、直径和长度，并对组间均值进行统计学比较。结果表明，猕猴的两块肌肉中快速纤维的比例最高(其次是人类)，而人类的两块肌肉中的慢纤维比例最高。猕猴和人类通常在形态测量学上没有什么不同，除了纤维长度，人类的纤维更长。虽然样本量很小，但本研究的结果可能表明，恒河猴OOM和ZM主要是通过快速展示屈服和攻击性的面部来协助维持僵硬的优势等级，而人类的肌肉可能不仅在面部表情工作的压力下进化，而且在言语发展方面也是如此。
Facial expression is a universal means of visual communication in humans and many other primates. Humans have the most complex facial display repertoire among primates but gross morphological studies have not found greater complexity in human mimetic musculature. The present study examines microanatomical aspects of mimetic musculature in order to test hypotheses related to human mimetic musculature physiology, function, and evolutionary morphology. Samples from the orbicularis oris (OOM) and the zygomaticus major muscles (ZM) in laboratory mice (N=3), rhesus macaques (N=3) and humans (N=3) were collected. Fiber type proportions (slow-twitch and fast-twitch), fiber cross-sectional area, diameter, and length were calculated and means were statistically compared among groups. Results showed that macaques had the greatest percentage of fast fibers in both muscles (followed by humans) and humans had the greatest percentage of slow fibers in both muscles. Macaques and humans typically did not differ from one another in morphometrics except for fiber length where humans had longer fibers. While sample sizes are low, results from the present study may indicate that the rhesus macaque OOM and ZM are specialized primarily to assist with maintenance of the rigid dominance hierarchy via rapid facial displays of submission and aggression while human musculature may have evolved not only under pressure to work in facial expressions but also in development of speech.
登录
查看更多内容
影响因子：
2.8
作者：
Curry, Jennifer Wendy;Hohl, Rodrigo;Kohn, Tertius Abraham
通讯作者：
Kohn, Tertius Abraham
影响因子：
2.5
作者：
BODINE, SC;ROY, RR;EDGERTON, VR
通讯作者：
EDGERTON, VR
影响因子：
2.4
作者：
Burrows, AM;Waller, BM;Bonar, CJ
通讯作者：
Bonar, CJ
影响因子：
3.6
作者：
FREILINGER, G;HAPPAK, W;GRUBER, H
通讯作者：
GRUBER, H
DOI：
10.1002/ar.22614
发表时间：
2013-01-01
影响因子：
2
作者：
Hazimihalis, P. J.;Gorvet, M. A.;Butcher, M. T.
通讯作者：
Butcher, M. T.