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Tag: Biological Psychiatry

Can Neurotrophin-3 Reduce Anxious Temperament?

Increasing levels of the molecule neurotrophin-3 in the brain can alter dispositional anxiety, the tendency to perceive many situations as threatening, in nonhuman primates, researchers from the University of California, Davis, and the University of Wisconsin-Madison have found[1]. The molecule, neurotrophin-3, stimulates neurons to grow and make new connections. Hang on a minute though. Before […]

Procrastination: Genetic, Anatomical And Functional Differences Sway Separately

In women, the tendency toward procrastination is associated with a genetic predisposition towards a higher level of dopamine in the brain. Researchers from Ruhr-Universität Bochum and the Technical University of Dresden discovered this using genetic analyses and questionnaires. They were unable to identify this correlation in men. “The neurotransmitter dopamine has repeatedly been associated with […]

Psychosis Symptoms Relieved By Treatment Targeted At Genetic Mutation

An individual structural mutation has been linked to the underlying biology of psychosis and treatment response in a new study. The work also found that treatment of psychosis can be targeted to a specific genetic mutation in patients with psychotic disorders. Genetic mutations that have large effects on psychiatric disease risk are rare, with some […]

Brain Activation Patterns May Help Predict Bipolar Disorder Risk

New research indicates that patterns of brain activation during reward anticipation may help identify people most at risk for developing bipolar spectrum disorders. Mania in people with bipolar spectrum disorders (BPSD) is often accompanied by impulsivity, including impulsive responses to potential rewards. In this new study, patterns of neural activation during a reward task predicted […]

Serotonin Can Regulate Gene Expression Inside Neurons

The neurotransmitter serotonin, known for its role in passing signals between neurons in the brain, is also able to regulate expression of genes within neurons in an unexpected way, according to new research conducted by neuroscientists at the Icahn School of Medicine at Mount Sinai. The discovery may help scientists better understand a range of […]