Neuroscience

Pupil dilation: A window to perception

The eyes are often referred to as the "windows to the soul." In fact, there is a grain of neurobiological truth to this. An international research team from the Universities of Göttingen and Tübingen, Germany, and Baylor ...

Other

Pupil dilation reveals sexual orientation: study

There is a popular belief that sexual orientation can be revealed by pupil dilation to attractive people, yet until now there was no scientific evidence. For the first time, researchers at Cornell University used a specialized ...

Medical research

Pupils reveal 'aphantasia'—the absence of visual imagination

The study, led by researchers from UNSW Sydney and published in eLife, found that the pupils of people with aphantasia did not respond when asked to imagine dark and light objects, while those without aphantasia did.

Neuroscience

State of moderate arousal leads to optimum performance

If you want to know who is ready to perform at the highest level, look them in the eyes—or more specifically, look at the diameter of their pupils, Yale School of Medicine researchers report.

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