Psychology & Psychiatry

Scientists identify new gene linked to PTSD

Investigators at Boston University School of Medicine (BUSM) and Veterans Affairs (VA) Boston Healthcare System have identified a new gene linked to post-traumatic stress disorder (PTSD). The findings, published online in ...

Psychology & Psychiatry

Childhood defiance correlated with drug dependence

Children who exhibit oppositional behavior run the risk of becoming addicted to nicotine, cannabis and cocaine whilst Inattention symptoms represent a specific additional risk of nicotine addiction. Nevertheless, hyperactivity ...

Psychology & Psychiatry

Rejected Alzheimer's drug shows new potential

An international team of scientists led by researchers at Mount Sinai School Medicine have discovered that a drug that had previously yielded conflicting results in clinical trials for Alzheimer's disease effectively stopped ...

Psychology & Psychiatry

Some harmful effects of light at night can be reversed: study

Chronic exposure to dim light at night can lead to depressive symptoms in rodents -- but these negative effects can be reversed simply by returning to a standard light-dark cycle, a new study suggests.

Psychology & Psychiatry

Researchers link two biological risk factors for schizophrenia

(Medical Xpress) -- Johns Hopkins researchers say they have discovered a cause-and-effect relationship between two well-established biological risk factors for schizophrenia previously believed to be independent of one another.

Neuroscience

When being scared twice is enough to remember

One of the brain's jobs is to help us figure out what's important enough to be remembered. Scientists at Yerkes National Primate Research Center, Emory University have achieved some insight into how fleeting experiences become ...

Psychology & Psychiatry

Stress shrank brain area of Japan tsunami survivors: study

Emotional stress caused by last year's tsunami caused a part of some survivors' brains to shrink, according to scientists in Japan who grasped a unique chance to study the neurological effects of trauma.

Addiction

Chronic cocaine use may speed up aging of brain

New research by scientists at the University of Cambridge suggests that chronic cocaine abuse accelerates the process of brain ageing. The study, published today 25 April in Molecular Psychiatry, found that age-related loss ...

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