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Fear Response

All articles tagged with #fear response

health-and-science1 year ago

"Uncovering the Brain's Fear Switch: Turning Off PTSD Responses"

Scientists at UC San Diego have discovered a neural mechanism in the brain that sustains fear in individuals with PTSD, leading to a generalized feeling of fear even in safe environments. By studying lab mice and postmortem human brains, they identified a neurotransmitter switch in the brainstem that allows for this generalized fear to persist. Injecting mice with a harmless virus to stop this switch and administering Prozac after a stressful event both appeared to halt the fear response. This research provides insights into potential interventions for PTSD and related disorders.

via Futurism|
#brain-mechanism#fear-response#health-and-science
health-and-science1 year ago

Uncovering the Brain's Fear Switch: Turning Off PTSD Responses

Scientists at UC San Diego have discovered a neural "switch" in the brain that causes fear generalization in individuals with PTSD, leading to prolonged fear and anxiety even in safe environments. By studying lab mice and postmortem human brains, they found that a neurotransmitter switch in the brainstem sustains this generalized fear response. Injecting mice with a virus to stop this switch and administering Prozac after a stressful event effectively curtailed the fear reaction. This research provides insights into potential interventions for PTSD and related disorders.

via Yahoo! Voices|
#brain-mechanism#fear-response#health-and-science
wildlife-conservation2 years ago

Savanna's Scariest Sound: Animals' Astonishing Reactions

A study conducted in South Africa's Kruger National Park found that the sound of human voices evokes more fear in wild animals than the sounds of snarling and growling lions. The research, which analyzed thousands of video recordings, revealed that animals were twice as likely to run and would abandon water holes 40% faster when confronted with human voices compared to other potentially threatening sounds. The study highlights the universal fear of humans among wildlife and its potential implications for preventing wildlife poaching.

via The New York Times|
#animal-behavior#fear-response#human-impact