Pupils are a rich source of social information. Although changes in pupil size are automatic and uncontrollable, they can convey interest, arousal, helpful or harmful intentions, and a variety of ...

Are the eyes the windows to intelligence? In an interesting paper, Georgia psychologists Jason S. Tsukahara and colleagues report that there’s a positive correlation between pupil size and cognitive ...

Mean scotopic pupil size increases in children until the age of 11 years, then decreases, according to a study. Eva-Maria Kohnen and colleagues at Johann Wolfgang Goethe University in Frankfurt, ...

The size of your pupils varies throughout the day, but most people’s pupils fall within a particular size range. We’ll look at when and why your pupils change size. First, the range of “normal” pupil ...

Instead of the soul, the eyes may actually serve as a window into the mind: A connection may exist between pupil size and certain types of intelligence. Of course, intelligence comes in many forms.

Arousal is a fundamental part of how our brain keeps us alert, engaged, and responsive to the world around us. It is controlled by networks deep in the brainstem, like the locus coeruleus (LC), which ...

The pupil, which allows light to reach the retina, contracts to reduce the amount of light it takes in in bright places, and expands to increase the amount of light in dark places. However, a new ...

Please provide your email address to receive an email when new articles are posted on . For all people, pupil size has an important role in balancing incoming light with depth of field to optimize ...

You have probably heard the saying that the eyes are the windows to the soul, but new research shows they are also connected ...

ITHACA, N.Y. – Cornell University researchers have found the pupil is key to understanding how, and when, the brain forms strong, long-lasting memories. By studying mice equipped with brain electrodes ...

Scientists have discovered a link between pupil size during non-REM sleep and the processing of new and old memories. Understanding how pupil size relates to memory could have significant implications ...