The gated cascade diffusion model: An integrated theory of decision making, motor preparation, and motor execution.

ABSTRACT: This article introduces an integrated and biologically inspired theory of decision making, motor preparation, and motor execution. The theory is formalized as an extension of the diffusion model, in which diffusive accumulated evidence from the decision-making process is continuously conveyed to motor areas of the brain that prepare the response, where it is smoothed by a mechanism that approximates a Kalman-Bucy filter. The resulting motor preparation variable is gated prior to reaching agonist muscles until it exceeds a particular level of activation. We tested this gated cascade diffusion model by continuously probing the electrical activity of the response agonists through electromyography in four choice tasks that span a variety of domains in cognitive sciences, namely motion percepti

SUBMITTER: Dendauw E 

PROVIDER: S-EPMC7616365 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature