Medical research

Tourette-like tics vanish in mice treated with histamine

Yale scientists produced increased grooming behavior in mice that may model tics in Tourette syndrome and discovered these behaviors vanish when histamine—a neurotransmitter most commonly associated with allergies—is ...

Psychology & Psychiatry

Streptococcal throat infection linked to mental disorders

(HealthDay)—Individuals with streptococcal throat infection have increased risks of mental disorders, especially obsessive-compulsive disorder (OCD) and tics, according to a study published online May 24 in JAMA Psychiatry.

Genetics

First clear-cut risk genes for Tourette disorder revealed

Tourette disorder (also known as Tourette syndrome) afflicts as many as one person in a hundred worldwide with potentially disabling symptoms including involuntary motor and vocal tics. However, researchers have so far failed ...

Psychology & Psychiatry

Cause of obsessive-compulsive disorder discovered

An overactive molecular signal pathway in the brain region of the amygdala can lead to obsessive-compulsive disorder (OCD). A research team from Würzburg has established this connection.

Psychology & Psychiatry

Eating disorder gene alters feeding and behavior in female mice

Giving mice a gene mutation linked to eating disorders in people causes feeding and behavior abnormalities similar to symptoms often seen in patients with eating disorders. Only female mice are affected by the gene mutation, ...

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