Spontaneous mimicry appears fundamental to emotional perception and contagion,
especially when it involves facial emotional expressions. Here we cover recent evidence on …

Abstract Palagi et al.(Neurosci. Biobehav. Rev. 111: 149-165, 2020) propose a
multidisciplinary approach to the study of spontaneous mimicry, focusing on comparative …

Highlights•Lions yawn when they are relaxed and engage in social affiliation.•The arousal
state seems to inhibit yawning in wild lions.•Wild lions are infected by others' yawns.•Yawn …

Yawn contagion occurs when individuals yawn in response to the yawn of others (triggers).
This is the first account of yawn contagion in wild geladas (Theropithecus gelada), a monkey …

Behavioural contagion is a widespread phenomenon in animal species, which is thought to
promote coordination and group cohesion. Among non-human primates, however, there is …

Considerable variation exists in the contagiousness of yawning, and numerous studies have
been conducted to investigate the proximate mechanisms involved in this response. Yet …

Contagious yawning differs from spontaneous yawning because it occurs when an
individual yawns in response to someone else's yawn. In Homo sapiens and some non …

Contagious yawning occurs in humans and a few other highly social animals following the
detection of yawns in others, yet the factors influencing the propagation of this response …

It has been theorized that the contagion of behaviors may be related to social cognitive
abilities, but empirical findings are inconsistent. We recorded young adults' behavioral …

In primates, yawn contagion (the yawning response elicited by others' yawn) is variably
influenced by individual (eg, sex, age) and social factors (eg, familiarity) and possibly linked …