Pears, A., Parkinson, J. A., Hopewell, L., Everitt, B. J., & Roberts, A. C. (2003). Lesions of the Orbitofrontal but not Medial Prefrontal Cortex Disrupt Conditioned Reinforcement in Primates. J Neurosci.

Pears, Andrew, John A. Parkinson, Lucy Hopewell, Barry J. Everitt, and Angela C. Roberts. "Lesions of the Orbitofrontal but Not Medial Prefrontal Cortex Disrupt Conditioned Reinforcement in Primates." J Neurosci 2003.

Pears, Andrew, et al. "Lesions of the Orbitofrontal but Not Medial Prefrontal Cortex Disrupt Conditioned Reinforcement in Primates." J Neurosci 2003.