Introduction:
Pupilometry is the study of how a pupil reacts to different emotions and stimuli. The research on the topic of pupilometry is scattered and fairly shallow. Related research has been conducted on facial expressions and their reaction and relation to emotion. There are some relationships to the facial expression research and pupilometry, but these relationships do not tell the whole story. Some interest has been brought up through research in the field of pupilometry and its predictive powers on emotion.
Pupilometry has to do with the dilation and contraction of the pupil relative to the stimulus or emotion being studied. In the early stages of pupil dilation research, there was intrigue as to the response of the pupil to emotional situations. That focus shifted toward information processing, and soon emotional studies were completely ignored.
One emotional study that was done questioned whether pupil size change, as a response to seeing nudity, was......
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