Modeling the effects of methylphenidate on interference and evidence accumulation processes using the conflict linear ballistic accumulator.

ABSTRACT:

Rationale

Although methylphenidate and other stimulants have been demonstrated to improve task performance across a variety of domains, a computationally rigorous account of how these drugs alter cognitive processing remains elusive. Recent applications of mathematical models of cognitive processing and electrophysiological methods to this question have suggested that stimulants improve the integrity of evidence accumulation processes for relevant choices, potentially through catecholaminergic modulation of neural signal-to-noise ratios. However, this nascent line of work has thus far been limited to simple perceptual tasks and has largely omitted more complex conflict paradigms that contain experimental manipulations of specific top-down interference resolution processes.

Objec

SUBMITTER: Weigard A 

PROVIDER: S-EPMC6697566 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature