Universität zu Köln

Bennett, Daniel, Sasmita, Karen, Maloney, Ryan T., Murawski, Carsten and Bode, Stefan ORCID: 0000-0002-0258-7795 (2019). Monetary feedback modulates performance and electrophysiological indices of belief updating in reward learning. Psychophysiology, 56 (10). HOBOKEN: WILEY. ISSN 1469-8986

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Abstract

Belief updating entails the incorporation of new information about the environment into internal models of the world. Bayesian inference is the statistically optimal strategy for performing belief updating in the presence of uncertainty. An important open question is whether the use of cognitive strategies that implement Bayesian inference is dependent upon motivational state and, if so, how this is reflected in electrophysiological signatures of belief updating in the brain. Here, we recorded the EEG of participants performing a simple reward learning task with both monetary and nonmonetary instructive feedback conditions. Our aim was to distinguish the influence of the rewarding properties of feedback on belief updating from the information content of the feedback itself. A Bayesian updating model allowed us to quantify different aspects of belief updating across trials, including the size of belief updates and the uncertainty of beliefs. Faster learning rates were observed in the monetary feedback condition compared to the instructive feedback condition, while belief updates were generally larger, and belief uncertainty smaller, with monetary compared to instructive feedback. Larger amplitudes in the monetary feedback condition were found for three ERP components: the P3a, the feedback-related negativity, and the late positive potential. These findings suggest that motivational state influences inference strategies in reward learning, and this is reflected in the electrophysiological correlates of belief updating.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bennett, Daniel UNSPECIFIED UNSPECIFIED UNSPECIFIED Sasmita, Karen UNSPECIFIED UNSPECIFIED UNSPECIFIED Maloney, Ryan T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Murawski, Carsten UNSPECIFIED UNSPECIFIED UNSPECIFIED Bode, Stefan UNSPECIFIED orcid.org/0000-0002-0258-7795 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-135446
DOI:	10.1111/psyp.13431
Journal or Publication Title:	Psychophysiology
Volume:	56
Number:	10
Date:	2019
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1469-8986
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ERROR-RELATED NEGATIVITY; INTEGRATIVE THEORY; DECISION; REINFORCEMENT; UNCERTAINTY; INCENTIVES; MOTIVATION; BRAIN; POTENTIALS; COMPLEXITY Multiple languages Psychology, Biological; Neurosciences; Physiology; Psychology; Psychology, Experimental Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13544