Chronic exposure to cocaine reduces the expression of a protein known to regulate brain plasticity, according to new, in vivo research on the molecular basis of cocaine addiction. That reduction drives structural changes in the brain, which produce greater sensitivity to the rewarding effects of cocaine.
Development
Scientists identify neurotranmitters that lead to forgetting
While we often think of memory as a way of preserving the essential idea of who we are, little thought is given to the importance of forgetting to our wellbeing, whether what we forget belongs in the “horrible memories department” or just reflects the minutia of day-to-day living.
Response to first drug treatment may signal likelihood of future seizures in people with epilepsy
How well people with newly diagnosed epilepsy respond to their first drug treatment may signal the likelihood that they will continue to have more seizures, according to a study published in the May 9, 2012, online issue of Neurology, the medical journal of the American Academy of Neurology.
The music of the (hemi)spheres sheds new light on schizophrenia
In 1619, the pioneering astronomer Johannes Kepler published Harmonices Mundi in which he analyzed data on the movement of planets and asserted that the laws of nature governing the movements of planets show features of harmonic relationships in music. In so doing, Kepler provided important support for the, then controversial, model of the universe proposed by Copernicus.
Virtual reality allows researchers to measure brain activity during behavior at unprecedented resolution
Researchers have developed a new technique which allows them to measure brain activity in large populations of nerve cells at the resolution of individual cells. The technique, reported today in the journal Nature, has been developed in zebrafish to represent a simplified model of how brain regions work together to flexibly control behaviour.