Neuroscience

Learning requires rhythmical activity of neurons

The hippocampus represents an important brain structure for learning. Scientists at the Max Planck Institute of Psychiatry in Munich discovered how it filters electrical neuronal signals through an input and output control, ...

Psychology & Psychiatry

Stress hormones: Good or bad for posttraumatic stress disorder risk?

Glucocorticoids, a group of hormones that includes cortisol, are considered stress hormones because their levels increase following stress. When their relationship to stress was first identified, it was shown that the release ...

Psychology & Psychiatry

Repeated exposure to traumatic images may be harmful to health

(Medical Xpress)—Repeated exposure to violent images from the terrorist attacks of Sept ember 11 and the Iraq War led to an increase in physical and psychological ailments in a nationally representative sample of U.S. adults, ...

Psychology & Psychiatry

Acute stress alters control of gene activity

Acute stress alters the methylation of the DNA and thus the activity of certain genes. This is reported by researchers at the Ruhr-Universität Bochum together with colleagues from Basel, Trier and London for the first ...

Psychology & Psychiatry

One in eight heart patients suffer post-traumatic stress disorder

One in eight people who suffer a heart attack or other acute coronary event experience clinically significant symptoms of post-traumatic stress disorder (PTSD), according to a meta-analysis of 24 studies led by Columbia University ...

Alzheimer's disease & dementia

Chronic stress spawns protein aggregates linked to Alzheimer's

Repeated stress triggers the production and accumulation of insoluble tau protein aggregates inside the brain cells of mice, say researchers at the University of California, San Diego School of Medicine in a new study published ...

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