Universität zu Köln

Turner, William, Angdias, Raina, Feuerriegel, Daniel, Chong, Trevor T. -J., Hester, Robert ORCID: 0000-0003-0982-8026 and Bode, Stefan ORCID: 0000-0002-0258-7795 (2021). Perceptual decision confidence is sensitive to forgone physical effort expenditure. Cognition, 207. AMSTERDAM: ELSEVIER. ISSN 1873-7838

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Abstract

Contemporary theoretical accounts of metacognition propose that action-related information is used in the computation of perceptual decision confidence. We investigated whether the amount of expended physical effort, or the 'motoric sunk cost' of a decision, influences perceptual decision confidence judgements in humans. In particular, we examined whether people feel more confident in decisions which required more effort to report. Forty-two participants performed a luminance discrimination task that involved identifying which of two flickering grayscale squares was brightest. Participants reported their choice by squeezing hand-held dynamometers. Across trials, the effort required to report a decision was varied across three levels (low, medium, high). Critically, participants were only aware of the required effort level on each trial once they had initiated their motor response, meaning that the varying effort requirements could not influence their initial decisions. Following each decision, participants rated their confidence in their choice. We found that participants were more confident in decisions that required greater effort to report. This suggests that humans are sensitive to motoric sunk costs and supports contemporary models of metacognition in which actions inform the computation of decision confidence.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Turner, William UNSPECIFIED UNSPECIFIED UNSPECIFIED Angdias, Raina UNSPECIFIED UNSPECIFIED UNSPECIFIED Feuerriegel, Daniel UNSPECIFIED UNSPECIFIED UNSPECIFIED Chong, Trevor T. -J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hester, Robert UNSPECIFIED orcid.org/0000-0003-0982-8026 UNSPECIFIED Bode, Stefan UNSPECIFIED orcid.org/0000-0002-0258-7795 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-588254
DOI:	10.1016/j.cognition.2020.104525
Journal or Publication Title:	Cognition
Volume:	207
Date:	2021
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1873-7838
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language FRAMEWORK; CHOICE Multiple languages Psychology, Experimental Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58825