(Medical Xpress) — While stimulants may improve unengaged workersÂ’ performance, a new University of British Columbia study suggests that for others, caffeine and amphetamines can have the opposite effect, causing workers with higher motivation levels to slack off.
Motivation
Study shines light on brain mechanism that controls reward enjoyment
What characterizes many people with depression, schizophrenia and some other mental illnesses is anhedonia: an inability to gain pleasure from normally pleasurable experiences.
Brain imaging study finds evidence of basis for caregiving impulse
Distinct patterns of activity– which may indicate a predisposition to care for infants — appear in the brains of adults who view an image of an infant face — even when the child is not theirs, according to a study by researchers at the National Institutes of Health and in Germany, Italy, and Japan.
Migraine linked to increased risk of depression in women
New research suggests women who have migraine or have had them in the past are at an increased risk for developing depression compared to women who have never had migraine. The study was released today and will be presented at the American Academy of Neurology’s 64th Annual Meeting in New Orleans April 21 to April 28, 2012.
Smoking cessation drug improves walking function in patients with spinocerebellar ataxia type 3
A nicotinic drug approved for smoking cessation significantly improved the walking ability of patients suffering from an inherited form of ataxia, reports a new clinical study led by University of South Florida researchers.