Researchers find that the amygdala is a sophisticated mediator that chooses between action-based and stimulus-based learning ...

Neurodegenerative disease profoundly affects structures and pathways responsible for memory, cognition, and higher-order ...

Fear is an adaptive emotion that helps us cope with threatening situations. Deep within the temporal lobe of the brain is the amygdala, the most studied brain area involved in fear. The amygdala uses ...

The brain’s primitive “fear center” may be much more than that, as new research on the amygdala suggests it plays a crucial role in learning, emotion, and decision-making. Researchers from Dartmouth ...

Picture a star-shaped cell in the brain, stretching its spindly arms out to cradle the neurons around it. That's an astrocyte, and for a long time, scientists thought its job was caretaking the brain, ...

One of the characteristics of depression is a tendency to perceive sensory stimuli and everyday situations in an excessively negative way. But the mechanisms underpinning this "negativity bias," which ...

A Dartmouth study challenges the conventional view that the amygdala-the two-sided structure deep in the brain involved in emotion, learning, and decision making-is simply the brain's primitive "fear ...

A new study shows that a lack of dietary fiber leads to rapid inflammation in the aging brain's amygdala, impairing emotional memory.