Topic: drift-diffusion dynamics

In the study of decision making, neuroscientists have largely focused on how the brain accumulates evidence during the formation of decisions. Less is known about how the accumulation of evidence is terminated. When decisions are communicated with an eye movement, neurons in the lateral intraparietal area (LIP) represent the accumulation of evidence. It has long been hypothesized that downstream areas terminate the decision process when LIP reaches a threshold level of activity. We recorded from neurons in the superior colliculus (SC), a primary downstream target of LIP, as a monkey performed