In humans, exogenous improves the ability to estimate the emotional state of another human by only looking at pictures of their eyes.

The is a brief, regenerative all-or-nothing electrical potential that propagates along an axon.

The concept that old memories are more resilient than new memories is known as .

Remembering how to swim after years of being unable to go swimming is an example of a memory. 

Individuals with amnesia are unable to remember what happened prior to brain damage. 

The HPA axis ultimately affects the release of from the adrenal glands in humans.

Punch drunk was the original descriptor of . 

In contrast to some other brain regions, neurons in the develop longer dendrites and have more spines when animals are exposed to chronic stress. 

is a misfolded protein found in the brains of patients with chronic traumatic encephalopathy and Alzheimer’s disease. 

Degeneration in Alzheimer’s disease typically begins in the .