Learning and unlearning to fear: The two faces of noradrenaline

(RIKEN) Emotional learning can create strong memories and powerful emotional responses, but flexible behavior demands that these responses be inhibited when they are no longer appropriate. Scientists at the RIKEN Brain Science Institute in Japan have discovered that emotional and flexible learning rely on an important division of labor in the brain. Published in the journal Nature Neuroscience, the study shows that these different learning states require distinct populations of neurons that originate in the locus coeruleus of the brain and transmit signals using noradrenaline.

from EurekAlert! - Social and Behavioral Science http://ift.tt/2xKSfr0