Psychology & Psychiatry

Research shows daylight has big impact on cognitive functions

Imagine you are in a laboratory room watching two African grass rats trying to navigate through a maze. One grass rat moves through the course quickly and finds its way out easily. The other struggles and cannot figure out ...

Psychology & Psychiatry

Who is at risk for seasonal affective disorder?

Seasonal affective disorder is a type of depression related to changes in seasons. Millions of adults in the U.S. may suffer from seasonal affective disorder, although many may not know they have the condition, according ...

Psychology & Psychiatry

How changes in length of day change the brain and subsequent behavior

Seasonal changes in light—longer days in summer, shorter in winter—have long been associated with human behaviors, affecting everything from sleep and eating patterns to brain and hormonal activity. Seasonal affective ...

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