When first exposed to cocaine, the adolescent brain launches a strong defensive reaction designed to minimize the drug’s effects, Yale and other scientists have found. Now two new studies by a Yale team identify key genes that regulate this response and show that interfering with this reaction dramatically increases a mouse’s sensitivity to cocaine.
memory
Scientists identify link between size of brain region and conformity
Every generation has its James Dean: the rebel who refuses to follow the path beaten by their peers. Now, a new study in Current Biology has found a link between the amount of grey matter in one specific brain region and an individual’s likelihood of conforming to social pressures.
Study: New treatment for traumatic brain injury shows promise in animals
A new drug is showing promise in shielding against the harmful effects of traumatic brain injury (TBI) in rats, according to a study that was released today and will be presented at the American Academy of Neurology’s 64th Annual Meeting in New Orleans April 21 to April 28, 2012.
Trouble sleeping? It may affect your memory later on
The amount and quality of sleep you get at night may affect your memory later in life, according to research that was released today and will be presented at the American Academy of Neurology’s 64th Annual Meeting in New Orleans April 21 to April 28, 2012.
Study finds child abuse can lead to stunted brain development
(Medical Xpress) — A small team of researchers has found that various forms of child abuse can lead to stunted development in certain regions of the brain. The research carried out by Martin Teicher, Carl Anderson and Ann Polcari, all working in the Boston area, relied on questionnaires and MRI brain scans to determine that certain parts of the hippocampus, all known to be sensitive to stress, were up to six percent smaller in adults who as children had been sexually, verbally or physically abused. The team has published their results in the Proceedings of the National Academy of Sciences.