Psychology & Psychiatry

Shrinking brain could aid diagnosis of clinical depression

(Medical Xpress) -- Parts of the brain appear to shrink when people suffer from severe depression, according to research funded by the Wellcome Trust and the National Institute for Health Research.

Neuroscience

Cocaine addiction traced to increase in number of orexin neurons

A study in cocaine-addicted rats reports long-lasting increases in the number of neurons that produce orexin—a chemical messenger important for sleep and appetite—that may be at the root of the addiction. The study, performed ...

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