Cocaine-induced brain plasticity may protect the addicted brain / EurekAlert, 27 August 2008
http://www.eurekalert.org/pub_releases/2008-08/cp-cbp082108.php
"The research, published by Cell Press in the August 28 issue of the journal Neuron, identifies specific brain mechanisms that underlie addiction-related structural changes in the brain and provides surprising insight into how these changes may actually defend the brain during excessive drug use."