Researchers identify key brain circuits for reward-seeking and avoidance behavior

microscopy image of a rodent brain cross-section; pathways in the extended amygdala related to reward-seeking and aversion are labeled in fluorescent green

Previously unrecognized pathways in mice have relevance for mental health and addiction research Researchers have identified connections between neurons in brain systems associated with reward, stress, and emotion. Conducted in mice, the new study may help untangle multiple psychiatric conditions, including alcohol use disorder, anxiety disorders, insomnia, and depression in humans. “Understanding these intricate brain … Read more

Lack of sleep may be linked to risk factor for Alzheimer’s disease

Illustration of beta-amyloid accumulation

Preliminary NIH study shows increased levels of beta-amyloid Losing just one night of sleep led to an immediate increase in beta-amyloid, a protein in the brain associated with Alzheimer’s disease, according to a small, new study by researchers at the National Institutes of Health. In Alzheimer’s disease, beta-amyloid proteins clump together to form amyloid plaques, … Read more