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Evidence accumulation in the integrated and primed Stroop tasks.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Kinoshita, Sachiko 
de Wit, Bianca 
Aji, Melissa 

Abstract

We report distributional analyses of response times (RT) in two variants of the color-word Stroop task using manual keypress responses. In the classic Stroop task, in which the color and word dimensions are integrated into a single stimulus, the Stroop congruence effect increased across the quantiles. In contrast, in the primed Stroop task, in which the distractor word is presented ahead of colored symbols, the Stroop congruence effect was manifested solely as a distributional shift, remaining constant across the quantiles. The distributional-shift pattern mirrors the semantic-priming effect that has been reported in semantic categorization tasks. The results are interpreted within the framework of evidence accumulation, and implications for the roles of task conflict and informational conflict are discussed.

Description

Keywords

Automatic processing, Automaticity, Stroop effect, Adult, Female, Humans, Male, Psychomotor Performance, Reaction Time, Repetition Priming, Stroop Test, Young Adult

Journal Title

Mem Cognit

Conference Name

Journal ISSN

0090-502X
1532-5946

Volume Title

45

Publisher

Springer Science and Business Media LLC
Sponsorship
Medical Research Council (MC_UU_00005/11)