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Does interaction matter? Testing whether a confidence heuristic can replace interaction in collective decision-making.

Bang, D; Fusaroli, R; Tylén, K; Olsen, K; Latham, PE; Lau, JY; Roepstorff, A; ... Bahrami, B; + view all (2014) Does interaction matter? Testing whether a confidence heuristic can replace interaction in collective decision-making. Conscious Cogn , 26C 13 - 23. 10.1016/j.concog.2014.02.002. Green open access

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Abstract

In a range of contexts, individuals arrive at collective decisions by sharing confidence in their judgements. This tendency to evaluate the reliability of information by the confidence with which it is expressed has been termed the 'confidence heuristic'. We tested two ways of implementing the confidence heuristic in the context of a collective perceptual decision-making task: either directly, by opting for the judgement made with higher confidence, or indirectly, by opting for the faster judgement, exploiting an inverse correlation between confidence and reaction time. We found that the success of these heuristics depends on how similar individuals are in terms of the reliability of their judgements and, more importantly, that for dissimilar individuals such heuristics are dramatically inferior to interaction. Interaction allows individuals to alleviate, but not fully resolve, differences in the reliability of their judgements. We discuss the implications of these findings for models of confidence and collective decision-making.

Type: Article
Title: Does interaction matter? Testing whether a confidence heuristic can replace interaction in collective decision-making.
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.concog.2014.02.002
Publisher version: http://dx.doi.org/10.1016/j.concog.2014.02.002
Additional information: ©� 2014 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/).
Keywords: Collective decision-making, Computational, Confidence, Heuristic, Interaction, Metacognition, Perception, Reaction time, Signal detection theory
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Institute of Cognitive Neuroscience
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Imaging Neuroscience
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Gatsby Computational Neurosci Unit
URI: https://discovery.ucl.ac.uk/id/eprint/1424991
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