Acute stress makes immune cells migrate immediately to the bone marrow, which prepares the body for injury at the expense of increasing infectious disease susceptibility.
Six GPS-tracked wild cats wandered closer to Santa Cruz, California, and surrounding towns as human activity died down under shelter-in-place orders last March.
A group of self-styled screamologists are sifting through the noisiness of nonverbal human vocalizations and finding previously undemonstrated forms of communication.
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.
See University of California, Los Angeles, animal behavior researcher Dan Blumstein explain common characteristics of vocalizations that express fearful emotions.
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.
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.
