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Title: Joint Cognition: Thought contagion and the consequences of cooperation when Sharing the Task of Random Sequence Generation
Authors: Towse, John Nicholas
Towse, Andrea Sarah
Saito, Satoru  kyouindb  KAKEN_id  orcid (unconfirmed)
Maehara, Yukio
Miyake, Akira
Author's alias: 齊藤, 智
Issue Date: 15-Mar-2016
Publisher: Public Library of Science
Journal title: PLOS ONE
Volume: 11
Issue: 3
Thesis number: e0151306
Abstract: Generating random number sequences is a popular psychological task often used to measure executive functioning. We explore random generation under "joint cognition" instructions; pairs of participants take turns to compile a shared response sequence. Across three studies, we point to six key findings from this novel format. First, there are both costs and benefits from group performance. Second, repetition avoidance occurs in dyadic as well as individual production settings. Third, individuals modify their choices in a dyadic situation such that the pair becomes the unit of psychological function. Fourth, there is immediate contagion of sequence stereotypy amongst the pairs (i.e., each contributor "owns" their partner's response). Fifth, dyad effects occur even when participants know their partner is not interacting with them (Experiment 2). Sixth, ironically, directing participants' efforts away from their shared task responsibility can actually benefit conjoint performance (Experiment 3). These results both constrain models of random generation and illuminate processes of joint cognition.
Rights: © 2016 Towse et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
DOI(Published Version): 10.1371/journal.pone.0151306
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