Pupillary Contagion in Infancy: Evidence for spontaneous transfer of arousal

Christine Fawcett
Pupillary contagion – responding to observed pupil size with changes in one’s own pupil – has been observed in adults and suggests that arousal and other internal states could be transferred across individuals using a subtle physiological cue. Examining this phenomenon developmentally gives insight into its origins and underlying mechanisms, such as whether it is an automatic adaptation already present in infancy. In the current study, 6- and 9-month-olds viewed schematic depictions of eyes with...
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