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

Dan Bang; Riccardo Fusaroli; Kristian Tylén; Karsten Olsen; Peter Latham; Jennifer Lau; Andreas Roepstorff; Geraint Rees; Chris D Frith; Bahador Bahrami

doi:10.1016/j.concog.2014.02.002

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

Dan Bang, Riccardo Fusaroli, Kristian Tylén, Karsten Olsen, Peter Latham, Jennifer Lau, Andreas Roepstorff, Geraint Rees, Chris D Frith, Bahador Bahrami

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

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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 opinions 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 opinions. We discuss the implications of these findings for models of confidence and collective decision-making.

Originalsprog	Engelsk
Tidsskrift	Consciousness and Cognition
Vol/bind	26
Sider (fra-til)	13-23
Antal sider	11
ISSN	1053-8100
DOI	https://doi.org/10.1016/j.concog.2014.02.002
Status	Udgivet - 2014

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10.1016/j.concog.2014.02.002

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Citationsformater

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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 opinions 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 opinions. We discuss the implications of these findings for models of confidence and collective decision-making.",

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AU - Bang, Dan

AU - Fusaroli, Riccardo

AU - Tylén, Kristian

AU - Olsen, Karsten

AU - Latham, Peter

AU - Lau, Jennifer

AU - Roepstorff, Andreas

AU - Rees, Geraint

AU - Frith, Chris D

AU - Bahrami, Bahador

PY - 2014

Y1 - 2014

N2 - 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 opinions 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 opinions. We discuss the implications of these findings for models of confidence and collective decision-making.

AB - 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 opinions 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 opinions. We discuss the implications of these findings for models of confidence and collective decision-making.

U2 - 10.1016/j.concog.2014.02.002

DO - 10.1016/j.concog.2014.02.002

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SN - 1053-8100

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SP - 13

EP - 23

JO - Consciousness and Cognition

JF - Consciousness and Cognition

ER -

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

Abstract

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