Publication

Finding neural correlates of drift diffusion processes in EEG oscillations

van Vugt, M. K., Simen, P. & Cohen, J. D., 2011, Proceedings of the 33rd Annual Conference of the Cognitive Science Society. Carlson, L., Hölscher, C. & Shipley, T. (eds.). Austin, TX: Cognitive Science Society, p. 2439-2444 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Recent studies have begun to elucidate the neural correlates of evidence accumulation in perceptual decision making. Few of them have used a combined modeling-electrophysiological approach to studying evidence accumulation. We introduce a novel multivariate approach to EEG analysis with which we can perform a comprehensive search for neural correlates of dynamics predicted by the drift diffusion model. We show that the dynamics of evidence accumulation are correlated with de- creases in the 4–9 Hz theta band over the course of a trial. The rate of decrease in this band correlates with individual differ- ences in fitted drift diffusion model parameters.
Original languageUndefined/Unknown
Title of host publicationProceedings of the 33rd Annual Conference of the Cognitive Science Society
EditorsL. Carlson, C. Hölscher, T. Shipley
Place of PublicationAustin, TX
PublisherCognitive Science Society
Pages2439-2444
Number of pages6
Publication statusPublished - 2011

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