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, ...

Subtle pupil dilation and changes in expression have been found to be a new way for medical professionals to detect tinnitus. For the first time, it provides a reliable test to help determine the ...

The test involves closely tracking pupil size changes while a person is completing a cognitively taxing task. The idea arose out of research that found one of the earliest brain regions to display ...

A close-up of an eye dominates the computer monitor in Avinash Bala’s lab. It’s uncomfortably close, blinking like it’s irritated. A vaguely female voice is repeating the word “bah” in the background ...

Dilated pupils (mydriasis or fixed pupils) are when your eyes' pupils, which let light into your eyes, become wider. This can ...

Many factors can influence pupil size. Typically, the pupils open up in low light situations to let in more light. However, some research suggests that attraction and mood might also cause pupil ...

PORTLAND, Ore. (KOIN) — A new study published by researchers at Washington State University suggests testing how the eyes’ pupils change in response to light could potentially be used to screen for ...

Dilated pupils mean that your pupils appear larger in size. The most common reason for dilated pupils is low light in a dark room since lower light causes your pupils to grow. Dilated pupils are also ...

Dilated pupils (mydriasis) occur when the pupils open larger than usual. This normally happens in darker lighting to allow more light into the eye, but dilated pupils can also indicate an underlying ...