TY - JOUR T1 - The Neuroscience of Natural Rewards: Relevance to Addictive Drugs JF - The Journal of Neuroscience JO - J. Neurosci. SP - 3306 LP - 3311 DO - 10.1523/JNEUROSCI.22-09-03306.2002 VL - 22 IS - 9 AU - Ann E. Kelley AU - Kent C. Berridge Y1 - 2002/05/01 UR - http://www.jneurosci.org/content/22/9/3306.abstract N2 - ER -