Pupil Dilation Reflects the Creation and Retrieval of Memories.

  title={Pupil Dilation Reflects the Creation and Retrieval of Memories.},
  author={Stephen D. Goldinger and Megan H Papesh},
  journal={Current directions in psychological science},
  volume={21 2},
It has long been known that pupils-the apertures that allow light into the eyes-dilate and constrict not only in response to changes in ambient light but also in response to emotional changes and arousing stimuli (e.g., Fontana, 1765). Charles Darwin (1872) related changes in pupil diameter to fear and other "emotions" in animals. For decades, pupillometry has been used to study cognitive processing across many domains, including perception, language, visual search, and short-term memory… CONTINUE READING
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Provides a nice overview of the neurophysiology of the pupillary reflex , as well as evidence from an implicit long - term recognition memory paradigm using visual stimuli

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