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Some further clarifications on age-related differences in the Stroop task: New evidence from the two-to-one Stroop paradigm.

Burca, M., Chausse, P., Ferrand, L., Parris, B. A. and Augustinova, M., 2021. Some further clarifications on age-related differences in the Stroop task: New evidence from the two-to-one Stroop paradigm. Psychonomic Bulletin & Review. (In Press)

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DOI: 10.3758/s13423-021-02011-x

Abstract

Previous studies (Augustinova et al., Psychonomic Bulletin & Review, 25(2), 767-774, 2018; Li & Bosman, Aging, Neuropsychology, and Cognition, 3(4), 272-284, 1996) have shown that the larger Stroop effects reported in older adults is specifically due to age-related differences in the magnitude of response - and not semantic - conflict, both of which are thought to contribute to overall Stroop interference. However, the most recent contribution to the issue of the unitary versus composite nature of the Stroop effect argues that semantic conflict has not been clearly dissociated from response conflict in these or any other past Stroop studies, meaning that the very existence of semantic conflict is at present uncertain. To distinguish clearly between the two types of conflict, the present study employed the two-to-one Stroop paradigm with a color-neutral word baseline. This addition made it possible to isolate a contribution of semantic conflict that was independent of both response conflict and Stroop facilitation. Therefore, this study provides the first unambiguous empirical demonstration of the composite nature of Stroop interference - as originally claimed by multi-stage models of Stroop interference. This permitted the further observation of significantly higher levels of semantic conflict in older adults, whereas the level of response conflict in the present study remained unaffected by healthy aging - a finding that directly contrasts with previous studies employing alternative measures of response and semantic conflict. Two qualitatively different explanations of this apparent divergence across studies are discussed.

Item Type:Article
ISSN:1069-9384
Additional Information:Supplementary Information The online version contains supplementary material available at https://doi.org/10.3758/s13423-021-02011-x. Funding The work reported was supported by ANR Grant ANR-19-CE28-0013 and RIN Doctorant et RIN Tremplin Grant 19E00851 of Normandie Région, France.
Uncontrolled Keywords:Aging; Response conflict; Semantic conflict; Stroop interference
Group:Faculty of Science & Technology
ID Code:36085
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:08 Oct 2021 15:29
Last Modified:11 Oct 2021 13:28

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