A songbird strategically modifies its blinking behavior when viewing human faces
A songbird strategically modifies its blinking behavior when viewing human faces
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鸣禽在观看人脸时会策略性地改变眨眼行为
DOI：
10.1007/s10071-021-01476-6
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发表时间：
2021
期刊：
影响因子：
2.7
通讯作者：
Cavalier, Rebecca
中科院分区：
文献类型：
--
作者：
Yorzinski, Jessica L.;Walker, Mary K.;Cavalier, Rebecca
尽管眨眼对许多物种来说是保持清晰视力所必需的，但眨眼可能代价高昂，因为它会暂时损害视力。考虑到这种代价，个人可以有策略地调整眨眼行为，以最大限度地减少信息损失。我们测试了鸣禽在看到潜在威胁（人脸）时是否会改变其眨眼行为。我们记录了圈养的大尾白嘴鸦（Quiscalus mexicanus）在观看人脸刺激或对照刺激（树皮以及人脸和树皮的混合版本）之前、期间和之后的眨眼行为。我们发现，与对照组相比，鸟类在观看人脸时最能抑制眨眼行为。此外，当他们看到被指向的人脸而不是被回避的人脸时，他们更能抑制眨眼行为。此外，在观察人脸时，他们的眨眼行为根据反应性进行调整。这些结果表明，鸣禽可以根据其感知到的风险水平有策略地改变其眨眼行为。
Even though blinking is necessary to maintain clear vision in many species, blinking is likely costly because it temporarily impairs vision. Given this cost, individuals can strategically modify their blinking behavior to minimize information loss. We tested whether a songbird species modifies its blinking behavior when viewing potential threats (human faces). We recorded the blinking behavior of captive great-tailed grackles (Quiscalus mexicanus) before, during, and after they viewed human face stimuli or control stimuli (tree bark as well as scrambled versions of human faces and tree bark). We found that the birds inhibited their blinking behavior the most when viewing human faces versus controls. In addition, they inhibited their blinking behavior more when viewing human faces that were directed rather than averted. Furthermore, when viewing the human faces, their blinking behavior was modified based on reactivity. These results suggest that a songbird can strategically modify its blinking behavior based on its perceived level of risk.
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