Yawning is characterized by gaping of the mouth accompanied by a long inspiration followed by a shorter expiration. In humans, yawning begins in utero by 20 weeks gestation (Sherer, Smith, and Abramowicz, 1991) and continues throughout life.

Here we review the comparative research supporting this model of yawning among homeotherms, while highlighting a recent report showing how the expression of contagious yawning in humans is altered by seasonal climate variation.

2022年4月13日 · The research paper, "The causes and consequences of yawning in animal groups," highlights Professor Gallup’s findings that “yawning is a highly conserved neurophysiological adaptation among vertebrates…the detection of yawning appears to be biologically important in social species…the observation of yawning in conspecifics selectively ...

2022年5月1日 · Yawning is a highly conserved neurophysiological adaptation among vertebrates. The detection of yawning appears to be biologically important in social species. The observation of yawning in conspecifics selectively enhances vigilance. Yawn contagion appears to function in promoting motor synchrony in groups.

Contagious yawning, the onset of a yawn triggered by seeing, hearing, reading, or thinking about another person yawn is a well-documented phenomenon. The mechanisms that drive contagious yawning are as yet unknown, but there is recent evidence of a link between contagious yawning and self-processing …

2013年1月2日 · Here we review the comparative research supporting this model of yawning among homeotherms, while highlighting a recent report showing how the expression of contagious yawning in humans is altered by seasonal climate variation.

Yawning is a stereotyped action pattern that is prevalent across vertebrates. While there is growing consensus on the physiological functions of spontaneous yawning in neurovascular circulation...

2022年5月27日 · In a paper published this month in Animal Behavior, he reports some evidence for how contagious yawns might have evolved to keep us safe. Science chatted with Gallup about why yawning is ubiquitous—and useful. This interview has been edited for clarity and length.

Recent studies in animal behaviour, psychology and neuroscience now provide evidence that yawns serve as a cue that improves the vigilance of observers, and that contagious yawning functions to synchronize and/or coordinate group activity patterns.

2008年9月3日 · We review a growing body of medical and physiological evidence indicating that yawning may be a thermoregulatory mechanism, providing compensatory cooling when other provisions fail to operate favorably. Conditions such as multiple sclerosis, migraine headaches, epilepsy, stress and anxiety, and sch …