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Interference in the shared-Stroop task: a comparison of self- and other-monitoring

Pickering, Martin J., McLean, Janet F. and Gambi, Chiara ORCID: 2022. Interference in the shared-Stroop task: a comparison of self- and other-monitoring. Royal Society Open Science 9 (4) , 220107. 10.1098/rsos.220107

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Co-actors represent and integrate each other's actions, even when they need not monitor one another. However, monitoring is important for successful interactions, particularly those involving language, and monitoring others' utterances probably relies on similar mechanisms as monitoring one's own. We investigated the effect of monitoring on the integration of self- and other-generated utterances in the shared-Stroop task. In a solo version of the Stroop task (with a single participant responding to all stimuli; Experiment 1), participants named the ink colour of mismatching colour words (incongruent stimuli) more slowly than matching colour words (congruent). In the shared-Stroop task, one participant named the ink colour of words in one colour (e.g. red), while ignoring stimuli in the other colour (e.g. green); the other participant either named the other ink colour or did not respond. Crucially, participants either provided feedback about the correctness of their partner's response (Experiment 3) or did not (Experiment 2). Interference was greater when both participants responded than when they did not, but only when their partners provided feedback. We argue that feedback increased interference because monitoring one's partner enhanced representations of the partner's target utterance, which in turn interfered with self-monitoring of the participant's own utterance.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Additional Information: Published by the Royal Society under the terms of the Creative Commons Attribution License
Publisher: The Royal Society
ISSN: 2054-5703
Funders: ESRC
Date of First Compliant Deposit: 30 March 2022
Date of Acceptance: 29 March 2022
Last Modified: 07 Jun 2023 16:36

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