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Study Challenges Belief Sleep May Not Aid Brain Toxin Clearance

Study Challenges Belief Sleep May Not Aid Brain Toxin Clearance
techtimes.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from techtimes.com Daily Mail and Mail on Sunday newspapers.

Ten Astonishing New Discoveries about the Brain

Mass General photo contest celebrates art of science  — Harvard Gazette

Mass General photo contest celebrates art of science  — Harvard Gazette
harvard.edu - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from harvard.edu Daily Mail and Mail on Sunday newspapers.

Alston s singing mouse reveal brain s role in vocal tempo

Insights from Alston's singing mouse in Costa Rica uncover how the brain adapts its processing of time based on the needs of individuals.

A dedicated hypothalamic oxytocin circuit controls aversive social learning

To survive in a complex social group, one needs to know who to approach and, more importantly, who to avoid. In mice, a single defeat causes the losing mouse to stay away from the winner for weeks1. Here through a series of functional manipulation and recording experiments, we identify oxytocin neurons in the retrochiasmatic supraoptic nucleus (SOROXT) and oxytocin-receptor-expressing cells in the anterior subdivision of the ventromedial hypothalamus, ventrolateral part (aVMHvlOXTR) as a key circuit motif for defeat-induced social avoidance. Before defeat, aVMHvlOXTR cells minimally respond to aggressor cues. During defeat, aVMHvlOXTR cells are highly activated and, with the help of an exclusive oxytocin supply from the SOR, potentiate their responses to aggressor cues. After defeat, strong aggressor-induced aVMHvlOXTR cell activation drives the animal to avoid the aggressor and minimizes future defeat. Our study uncovers a neural process that supports rapid social learning caused by d

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