Science News About Attention Deficit Hyperactivity Disorder (ADHD)

Researchers have identified changes in brain connectivity and brain activity during rest and reward anticipation in children with anhedonia, a condition where people lose interest and pleasure in activities they used to enjoy.

Researchers have identified differences in how the brains of irritable youth react to frustration, findings that could provide new paths for developing treatments for children and adolescents with severe irritability.

High levels of maternal inflammation during pregnancy have been linked to effects in children, including reduced brain circuit communications and altered long-distance brain wiring at birth, poorer cognitive function at one year – and to reduced impulse control and working memory at two years.

Brain scans reveal that fluctuations in estrogen can trigger atypical functioning in a key brain memory circuit in women with a common version of a gene. Since working memory function is often disturbed in mental disorders, such gene-hormone interactions are suspect mechanisms that may confer risk.

A recent NIMH-funded study sheds new light on how the brain’s processing of sensory information, a key impairment in autism and ADHD, can affect higher level cognitive functions, such as attention and decision making.