Flexible ability-willingness trade-offs in cooperative partner choice: Evidence from a drift-diffusion model and ERP data

Partner choice plays a crucial role in human social behavior, with previous research highlighting the importance of both partner ability and willingness to cooperate in decision-making processes. However, the dynamic interplay between these factors across different contexts and how they are influenc...

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Main Authors: Qiang Xu, Jing Wang, Peng Li
Format: Article
Language:English
Published: Elsevier 2025-07-01
Series:NeuroImage
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Online Access:http://www.sciencedirect.com/science/article/pii/S105381192500285X
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author Qiang Xu
Jing Wang
Jing Wang
Peng Li
author_facet Qiang Xu
Jing Wang
Jing Wang
Peng Li
author_sort Qiang Xu
collection DOAJ
description Partner choice plays a crucial role in human social behavior, with previous research highlighting the importance of both partner ability and willingness to cooperate in decision-making processes. However, the dynamic interplay between these factors across different contexts and how they are influenced by individual characteristics remain poorly understood. This study investigated how task demands and individual traits modulate the tradeoff between partner ability and willingness to make social decisions. We employed a novel experimental paradigm combining three tasks (prisoner's dilemma, time estimation, and a combined task) with computational modeling and EEG recording. Fifty-three participants completed partner-selection trials across these tasks, while their behavioral and neural responses were recorded. Drift diffusion model (DDM) analysis revealed that decision weights for partner ability and willingness were systematically modulated by task demands, with willingness prioritized in cooperative contexts, but ability prioritized in skill-based tasks. Using these model-estimated weights, we found that participants with high self-perceived ability had higher ability weights, whereas those with high self-perceived willingness had lower ability weights in their decision making. EEG analysis, utilizing trial-level weights computed by the DDM, showed that the processing of willingness and ability information began approximately 300 ms post-stimulus, with distinct spatiotemporal patterns across tasks. In the combined task, EEG data indicated earlier and more extensive processing of willingness than of ability information. These findings reveal that individuals flexibly adjust their weighting of partner willingness and ability based on task demands, challenging the notion of a fixed ''willingness priority'' and demonstrating the dynamic nature of social decision-making across contexts.
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spelling doaj-art-ddb1820fb2fb49089a6920da18e81cf12025-08-20T03:48:19ZengElsevierNeuroImage1095-95722025-07-0131512128210.1016/j.neuroimage.2025.121282Flexible ability-willingness trade-offs in cooperative partner choice: Evidence from a drift-diffusion model and ERP dataQiang Xu0Jing Wang1Jing Wang2Peng Li3School of Psychology, Shenzhen University, Shenzhen, ChinaSchool of Psychology, Shenzhen University, Shenzhen, ChinaSchool of Management, Shenzhen Polytechnic, Shenzhen, China; Corresponding authors at: No 7098, Liuxian Avenue, Nanshan District, Shenzhen Polytechnic, Shenzhen, China, 518055.School of Psychology, Shenzhen University, Shenzhen, China; Corresponding authors at: No 3688, Nanhai Road, Nanshan District, Shenzhen, China, 518060.Partner choice plays a crucial role in human social behavior, with previous research highlighting the importance of both partner ability and willingness to cooperate in decision-making processes. However, the dynamic interplay between these factors across different contexts and how they are influenced by individual characteristics remain poorly understood. This study investigated how task demands and individual traits modulate the tradeoff between partner ability and willingness to make social decisions. We employed a novel experimental paradigm combining three tasks (prisoner's dilemma, time estimation, and a combined task) with computational modeling and EEG recording. Fifty-three participants completed partner-selection trials across these tasks, while their behavioral and neural responses were recorded. Drift diffusion model (DDM) analysis revealed that decision weights for partner ability and willingness were systematically modulated by task demands, with willingness prioritized in cooperative contexts, but ability prioritized in skill-based tasks. Using these model-estimated weights, we found that participants with high self-perceived ability had higher ability weights, whereas those with high self-perceived willingness had lower ability weights in their decision making. EEG analysis, utilizing trial-level weights computed by the DDM, showed that the processing of willingness and ability information began approximately 300 ms post-stimulus, with distinct spatiotemporal patterns across tasks. In the combined task, EEG data indicated earlier and more extensive processing of willingness than of ability information. These findings reveal that individuals flexibly adjust their weighting of partner willingness and ability based on task demands, challenging the notion of a fixed ''willingness priority'' and demonstrating the dynamic nature of social decision-making across contexts.http://www.sciencedirect.com/science/article/pii/S105381192500285XPartner choiceWillingnessAbilityERPDDM
spellingShingle Qiang Xu
Jing Wang
Jing Wang
Peng Li
Flexible ability-willingness trade-offs in cooperative partner choice: Evidence from a drift-diffusion model and ERP data
NeuroImage
Partner choice
Willingness
Ability
ERP
DDM
title Flexible ability-willingness trade-offs in cooperative partner choice: Evidence from a drift-diffusion model and ERP data
title_full Flexible ability-willingness trade-offs in cooperative partner choice: Evidence from a drift-diffusion model and ERP data
title_fullStr Flexible ability-willingness trade-offs in cooperative partner choice: Evidence from a drift-diffusion model and ERP data
title_full_unstemmed Flexible ability-willingness trade-offs in cooperative partner choice: Evidence from a drift-diffusion model and ERP data
title_short Flexible ability-willingness trade-offs in cooperative partner choice: Evidence from a drift-diffusion model and ERP data
title_sort flexible ability willingness trade offs in cooperative partner choice evidence from a drift diffusion model and erp data
topic Partner choice
Willingness
Ability
ERP
DDM
url http://www.sciencedirect.com/science/article/pii/S105381192500285X
work_keys_str_mv AT qiangxu flexibleabilitywillingnesstradeoffsincooperativepartnerchoiceevidencefromadriftdiffusionmodelanderpdata
AT jingwang flexibleabilitywillingnesstradeoffsincooperativepartnerchoiceevidencefromadriftdiffusionmodelanderpdata
AT jingwang flexibleabilitywillingnesstradeoffsincooperativepartnerchoiceevidencefromadriftdiffusionmodelanderpdata
AT pengli flexibleabilitywillingnesstradeoffsincooperativepartnerchoiceevidencefromadriftdiffusionmodelanderpdata