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Information sources and congruency modulate preference-based decision-making processes

Aysegul Ozkan, Jiaxiang Zhang Orcid Logo

Journal of Cognitive Psychology, Volume: 36, Issue: 6, Pages: 775 - 792

Swansea University Author: Jiaxiang Zhang Orcid Logo

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DOI (Published version): 10.1080/20445911.2024.2384666

Abstract

Preference-based decisions often need to combine multiple pieces of information. This study investigated how the number of information sources and information congruency affect decision performance. Participants made preference-based choices between two groups of food items. Increasing the number of...

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Published in: Journal of Cognitive Psychology
ISSN: 2044-5911 2044-592X
Published: Informa UK Limited 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa67175
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first_indexed 2024-07-24T15:44:49Z
last_indexed 2024-07-24T15:44:49Z
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spelling v2 67175 2024-07-24 Information sources and congruency modulate preference-based decision-making processes 555e06e0ed9a87608f2d035b3bde3a87 0000-0002-4758-0394 Jiaxiang Zhang Jiaxiang Zhang true false 2024-07-24 MACS Preference-based decisions often need to combine multiple pieces of information. This study investigated how the number of information sources and information congruency affect decision performance. Participants made preference-based choices between two groups of food items. Increasing the number of items in each option led to slower and less accurate decisions. Drift-diffusion modelling showed that more information sources relate to a slower rate of evidence accumulation. Therefore, the additional information impeded rather than improved the decision accuracy. In Experiment 2, each choice option contained either fully congruent information or one piece of incongruent information. Decisions with incongruent information is associated with a lower drift rate than that with congruent information, leading to inferior behaviorual performance. Further model simulations support that the change in attention weighting over information sources leads to the observed effects of item numbers and item congruency. Our results suggest a bounded combination of information sources during preference-based decisions. Journal Article Journal of Cognitive Psychology 36 6 775 792 Informa UK Limited 2044-5911 2044-592X Decision-making; preference;multiple sources; cognitivemodelling; drift diffusionmode 17 8 2024 2024-08-17 10.1080/20445911.2024.2384666 COLLEGE NANME Mathematics and Computer Science School COLLEGE CODE MACS Swansea University SU Library paid the OA fee (TA Institutional Deal) This work was supported by HORIZON EUROPE European Research Council [grant number 716321]. 2024-08-29T16:44:33.5969243 2024-07-24T16:31:53.4371531 Faculty of Science and Engineering School of Mathematics and Computer Science - Computer Science Aysegul Ozkan 1 Jiaxiang Zhang 0000-0002-4758-0394 2 67175__31070__b88c7daee81444778207b4af0472f740.pdf 67175_VOR.pdf 2024-08-08T13:21:18.7844593 Output 6389470 application/pdf Version of Record true © 2024 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution License. true eng https://creativecommons.org/licenses/by/4.0/
title Information sources and congruency modulate preference-based decision-making processes
spellingShingle Information sources and congruency modulate preference-based decision-making processes
Jiaxiang Zhang
title_short Information sources and congruency modulate preference-based decision-making processes
title_full Information sources and congruency modulate preference-based decision-making processes
title_fullStr Information sources and congruency modulate preference-based decision-making processes
title_full_unstemmed Information sources and congruency modulate preference-based decision-making processes
title_sort Information sources and congruency modulate preference-based decision-making processes
author_id_str_mv 555e06e0ed9a87608f2d035b3bde3a87
author_id_fullname_str_mv 555e06e0ed9a87608f2d035b3bde3a87_***_Jiaxiang Zhang
author Jiaxiang Zhang
author2 Aysegul Ozkan
Jiaxiang Zhang
format Journal article
container_title Journal of Cognitive Psychology
container_volume 36
container_issue 6
container_start_page 775
publishDate 2024
institution Swansea University
issn 2044-5911
2044-592X
doi_str_mv 10.1080/20445911.2024.2384666
publisher Informa UK Limited
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Mathematics and Computer Science - Computer Science{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Mathematics and Computer Science - Computer Science
document_store_str 1
active_str 0
description Preference-based decisions often need to combine multiple pieces of information. This study investigated how the number of information sources and information congruency affect decision performance. Participants made preference-based choices between two groups of food items. Increasing the number of items in each option led to slower and less accurate decisions. Drift-diffusion modelling showed that more information sources relate to a slower rate of evidence accumulation. Therefore, the additional information impeded rather than improved the decision accuracy. In Experiment 2, each choice option contained either fully congruent information or one piece of incongruent information. Decisions with incongruent information is associated with a lower drift rate than that with congruent information, leading to inferior behaviorual performance. Further model simulations support that the change in attention weighting over information sources leads to the observed effects of item numbers and item congruency. Our results suggest a bounded combination of information sources during preference-based decisions.
published_date 2024-08-17T16:44:31Z
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score 11.024221

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