<p>A graphic highlighting the brain's reward circuit.
</p>
Credit: National Institute on Drug Abuse, National Institutes of Health
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/132318516@N08">NIH Image Gallery</a> from Bethesda, Maryland, USA
2015-12-23 14:25
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nihgov/23822990622/">Brain Reward Circuit</a>