Macrocircuits: decision networks

Decision-making requires stimulus categorization and localization to guide accurate responses that can be produced through multiple effectors. The success of actions is monitored so that performance can be adjusted to achieve goals. This review will survey recent empirical and theoretical developments very selectively with an emphasis on neurophysiological data from nonhuman primates that provide the clearest information about neural mechanisms.

► Categorization and stimulus selection are accomplished by sensory and association circuits. ► Response preparation is accomplished by association and motor circuits. ► Monitoring and adjustment involve medial frontal areas. ► Speed-accuracy adjustments involve perceptual and response stages.