Parkinson, J. A., Olmstead, M. C., Burns, L. H., Robbins, T. W., & Everitt, B. J. (1999). Dissociation in Effects of Lesions of the Nucleus Accumbens Core and Shell on Appetitive Pavlovian Approach Behavior and the Potentiation of Conditioned Reinforcement and Locomotor Activity byd-Amphetamine. J Neurosci.

Parkinson, John A., Mary C. Olmstead, Lindsay H. Burns, Trevor W. Robbins, and Barry J. Everitt. "Dissociation in Effects of Lesions of the Nucleus Accumbens Core and Shell On Appetitive Pavlovian Approach Behavior and the Potentiation of Conditioned Reinforcement and Locomotor Activity Byd-Amphetamine." J Neurosci 1999.

Parkinson, John A., et al. "Dissociation in Effects of Lesions of the Nucleus Accumbens Core and Shell On Appetitive Pavlovian Approach Behavior and the Potentiation of Conditioned Reinforcement and Locomotor Activity Byd-Amphetamine." J Neurosci 1999.