Researchers have developed a molecule that regulates the circulation of copper in the brain. The molecule extracts copper trapped in amyloid plaques in mouse models of Alzheimer's disease. Administered orally, the molecule inhibits memory loss associated with Alzheimer's.
The brain tunes out information from the outside world, such as the sound of speech, during REM sleep. During light sleep, the brain prioritizes meaningful speech, just as it does during a wakeful state. Researchers believe the mechanism enables the brain to protect the dreaming phase, which is essential for memory consolidation.
Dietary triglycerides directly alter signaling in the reward circuit to regulate behavior. The findings reveal a potential mechanism by which triglyceride-rich diets may lead to adaptions in dopamine signaling that underlie reward deficit and compulsive behaviors.
Following a meal, astrocytes associated with POMC neurons in the hypothalamus alter their shape. After eating, glucose levels increase temporarily. Astrocytes detect the signal and react within one hour, causing POMC neurons to activate and promote the feeling of satiety.
Children as young as four associate power with masculinity a new study reports.
Young children with older sisters have better language skills than those with older brothers.
Research reveals atrophy of the amygdala and hippocampus at age 40 in patients later diagnosed with Alzheimer's disease.