Decision Making and Reward in Frontal Cortex - Complementary Evidence From Neurophysiological and Neuropsychological Studies

Kennerley Steve, Walton, Mark 2011.


Patients with damage to the prefrontal cortex (PFC)—especially the ventral and medial parts ofPFC—often show a marked inability to make choices that meet their needs and goals. These decision-making impairments often reflect both a deficit in learning concerning the consequences of a choice, aswell as deficits in the ability to adapt future choices based on experienced value of the current choice.Thus, areas of PFC must support some value computations that are necessary for optimal choice.However, recent frameworks of decision making have highlighted that optimal and adaptive decisionmaking does not simply rest on a single computation, but a number of different value computations maybe necessary. Using this framework as a guide, we summarize evidence from both lesion studies andsingle-neuron physiology for the representation of different value computations across PFC areas.