Study reveals a key role for the ventromedial hypothalamus in fight or flight behaviors. Findings suggest the ventromedial hypothalamus alters in response to social experiences.
When a mouse senses a threat, neurons in the ventromedial hypothalamus become activated and remain active for ten seconds after the threat is removed. Fear responses could be induced by artificially stimulating these neurons. Artificially silencing the neurons reduced fear behavior.
Researchers have uncovered a neural mechanism in female mice that shifts estrogen from playing a protective role in glucose metabolism to a disruptive one.
FGF21, a hormone created in the liver in response to increased levels of sugar, acts in the brain to suppress sugar intake and controls the preference for sweet-tasting foods.
Study identifies rare brain cell types that are unique to male mice, and others that are unique to females. The cells were discovered in the hypothalamus, a region of the brain that governs both aggression and mating behaviors.
Researchers report on why some people may experience increasing levels of aggression at the end of the day. The study reports the scientists have developed new gene editing tools to help turn of cells that cause sundowning behaviors.
Researchers have identified specific neurons and networks that regulate 'sundowning', a phenomenon commonly seen in Alzheimer's patients who exhibit worsening confusion and aggression levels at the end of the day.
Social experience appears to be key for the development of separate, sex-specific neural populations and expression of aggression in male mice, a new study reveals.
According to a new study, while brain regions that control sexual and aggressive behaviors in male and female mice are the same, the way they are wired is different.