Ni Yinmei, Li Jian
School of Psychological and Cognitive Sciences and Beijing Key Laboratory of Behavior and Mental Health, Peking University, Beijing 100871, China.
IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China.
iScience. 2025 Jan 27;28(3):111911. doi: 10.1016/j.isci.2025.111911. eCollection 2025 Mar 21.
Social status, which represents the relative dominance structure in societies, forms the backdrop against which most social decisions are made. Effective social decision-making demands flexible integration of decision attribute weight (importance of an attribute) and attribute latency (when attributes start to affect decisions). However, current understanding of how attribute weight and latency are influenced by relative social status is limited. In three experiments, we dynamically manipulated subjects' relative social status before they engaged in an altruistic decision task and found that their altruistic behavior was better explained by a time-varying drift diffusion model, in which relative social status selectively modulated attribute latency but not attribute weights. Furthermore, prosocial subjects exhibited higher sensitivity to attribute latency in response to changes in relative social status compared with individualistic subjects. Our results introduce a new dimension to the computational mechanisms underlying the intricate interplay between relative social status and attribute integration.
社会地位代表了社会中的相对主导结构，它构成了大多数社会决策的背景。有效的社会决策需要灵活整合决策属性权重（属性的重要性）和属性延迟（属性开始影响决策的时间）。然而，目前对于属性权重和延迟如何受到相对社会地位影响的理解是有限的。在三项实验中，我们在受试者参与利他决策任务之前动态操纵他们的相对社会地位，发现他们的利他行为可以通过一个随时间变化的漂移扩散模型得到更好的解释，在该模型中，相对社会地位选择性地调节属性延迟而非属性权重。此外，与利己主义受试者相比，亲社会受试者在对相对社会地位变化的反应中对属性延迟表现出更高的敏感性。我们的研究结果为相对社会地位与属性整合之间复杂相互作用的计算机制引入了一个新的维度。
