Journal article

Modeling Regularities in Response Time and Accuracy Data With the Diffusion Model

Roger Ratcliff, Philip L Smith, Gail McKoon

CURRENT DIRECTIONS IN PSYCHOLOGICAL SCIENCE | SAGE PUBLICATIONS INC | Published : 2015

Abstract

Diffusion models for simple two-choice decision-making have achieved prominence in psychology and neuroscience. The standard model views decision-making as a process in which noisy evidence is accumulated until one of the two response criteria is reached, at which point the associated response is made. The criteria represent the amount of evidence needed to make a decision and they reflect the decision maker's response biases and speed-accuracy trade-off settings. In this article, we review the regularities in experimental data that a model must explain. These include the relation between accuracy and mean response times, the shapes of response time distributions for correct and error respon..

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Grants

Awarded by National Institute on Aging


Awarded by Department of Education/Institute of Education Sciences


Awarded by Australian Research Council


Awarded by NATIONAL INSTITUTE ON AGING


Funding Acknowledgements

Preparation of this article was supported by National Institute on Aging Grant R01 AG041176, Department of Education/Institute of Education Sciences Grant R305A120189, and Australian Research Council Discovery Grant DP140102970.