Social determinants of eyeblinks in adult male macaques.

Social determinants of eyeblinks in adult male macaques.
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DOI:
10.1038/srep38686
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发表时间:
2016-12-06
期刊:
影响因子:
4.6
通讯作者:
Gothard KM
Gothard KM
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Ballesta S;Mosher CP;Szep J;Fischl KD;Gothard KM

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具有丰富社交和情感内容的视频会引发灵长类动物的自然社交行为。事实上,在观看同种动物的视频时,猴子会进行目光接触、目光跟随,并做出面部表情。我们假设眨眼的频率和时间也取决于视频中包含的社交信号。我们监测了四只雄性成年猕猴在观看同种猕猴通过直视或回避目光展示面部表情的视频时的眨眼情况。在视频播放期间,所有四只动物的瞬时眨眼率均下降。然而,眨眼的时间同步性随着向观看者描绘安抚或攻击性面部表情的片段而增加。四只猴子中的两只系统性地回应刺激猴子的直视,也表现出眨眼夹带,这是参与二元互动的社会伙伴之间眨眼的时间协调。总之,我们的研究结果表明,与人类一样,猕猴的眨眼不仅取决于保护眼睛和在角膜上散布泪膜的生理需要,还取决于一些社会情感因素。
Videos with rich social and emotional content elicit natural social behaviors in primates. Indeed, while watching videos of conspecifics, monkeys engage in eye contact, gaze follow, and reciprocate facial expressions. We hypothesized that the frequency and timing of eyeblinks also depends on the social signals contained in videos. We monitored the eyeblinks of four male adult macaques while they watched videos of conspecifics displaying facial expressions with direct or averted gaze. The instantaneous blink rate of all four animals decreased during videos. The temporal synchrony of blinking, however, increased in response to segments depicting appeasing or aggressive facial expressions directed at the viewer. Two of the four monkeys, who systematically reciprocated the direct gaze of the stimulus monkeys, also showed eyeblink entrainment, a temporal coordination of blinking between social partners engaged in dyadic interactions. Together, our results suggest that in macaques, as in humans, blinking depends not only on the physiological imperative to protect the eyes and spread a film of tears over the cornea, but also on several socio-emotional factors.
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