fear response

Avoidance of predation is a driving force behind the daily movements of marine creatures across the food web, a study concludes.

The animals adopt the emotional state of their cagemates, and the parts of the brain engaged during the process are different for pain and fear, according to a new study.

Meet some of the people featured in the October 2020 issue of The Scientist.

Those who had developed PTSD appear to be less able to suppress unwanted memories—traumatic or not—suggesting a role for the general ability to control memory recall in the disorder.

Strategies to make lab animals forget, remember, or experience false recollections probe how memory works, and may inspire treatments for neurological diseases.

The animals develop a new memory that overrides the fearful one by inhibiting the cells that encode the original memory.

Researchers have developed ways to manipulate neurons involved in a particular memory to make mice recall an experience or to remember something that never happened.

A brain-activated, bone-derived hormone called osteocalcin regulates the acute stress response in rodents and possibly humans.

Researchers map brain activity associated with a person’s anticipation of or direct confrontation with danger.

The brain is activated differently when it’s contemplating, rather than directly facing, a threat.

Meet some of the people featured in the November 2017 issue of The Scientist.