Inhibitory control in mind and brain: An interactive race model of countermanding saccades

Author(s)

Leanne Boucher, Nova Southeastern UniversityFollow
T. Palmeri
G.D. Logan
J.D. Schall

Document Type

Article

Publication Title

Psychological Review

ISSN

0033-295X

Publication Date

1-1-2007

Abstract

The stop-signal task has been used to study normal cognitive control and clinical dysfunction. Its utility is derived from a race model that accounts for performance and provides an estimate of the time it takes to stop a movement. This model posits a race between go and stop processes with stochastically independent finish times. However, neurophysiological studies demonstrate that the neural correlates of the go and stop processes produce movements through a network of interacting neurons. The juxtaposition of the computational model with the neural data exposes a paradox-how can a network of interacting units produce behavior that appears to be the outcome of an independent race? The authors report how a simple, competitive network can solve this paradox and provide an account of what is measured by stop-signal reaction time.

Volume

114

Issue

2

First Page

376

Last Page

397

NSUWorks Citation

Boucher, L., Palmeri, T., Logan, G., Schall, J. (2007). Inhibitory control in mind and brain: An interactive race model of countermanding saccades. Psychological Review, 114(2), 376-397.
Available at: https://nsuworks.nova.edu/cps_facarticles/1024