Jun. 27, 2012—An interdisciplinary team of scientists have successfully tagged a protein that regulates the neurotransmitter serotonin with tiny fluorescent beads, allowing them to track the movements of individual molecules for the first time. This capability makes it possible to study the manner in which serotonin regulates mood, appetite and sleep at a new level of detail.
Mar. 9, 2012—Shyness may be caused by deficits in the brain.