Understanding how pupil size relates to memory could have significant ... or even enhance learning. New York, Jan 2 (IANS) The pupil of the eye is key to understanding how, and when, the brain ...

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Dilation and constriction of the pupils reflect not only changes in light intensity but also ongoing mental activity. The response is a measure of interest, emotion, thought processes and attitudes ...

Here is an interesting fact that you will know today, the size of our pupils reveals a lot about the memories we store and even how we process them during sleep. There has been a discovery recently.