ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 2025, Vol. 57 ›› Issue (4): 584-598.doi: 10.3724/SP.J.1041.2025.0584 cstr: 32110.14.2025.0584

• 亲社会行为专刊(2) • 上一篇    下一篇

多巴胺系统基因调节青少年同伴拒绝与亲社会行为关系: 平行潜增长模型

李曦, 纪林芹, 迟晓慧, 王舒冉, 张文新(), 曹衍淼()   

  1. 山东师范大学心理学院, 山东省学生心理健康发展中心, 济南 250014
  • 收稿日期:2023-10-01 发布日期:2025-02-06 出版日期:2025-04-25
  • 通讯作者: 张文新, E-mail: zhangwenxin@sdnu.edu.cn;
    曹衍淼, E-mail: cym8023@126.com
  • 基金资助:
    国家自然科学基金项目(32071073);国家自然科学基金项目(31971008)

Dopaminergic genes moderated the association between peer rejection and adolescents’ prosocial behavior: Parallel latent growth modeling analyses

LI Xi, JI Linqin, CHI Xiaohui, WANG Shuran, ZHANG Wenxin(), CAO Yanmiao()   

  1. School of Psychology, Shandong Provincial Student Mental Health Development Center, Shandong Normal University, Jinan 250014, China
  • Received:2023-10-01 Online:2025-02-06 Published:2025-04-25

摘要:

基于动态发展视角和多基因研究范式, 对1044名青少年(初测年龄13.32 ± 0.48岁, 50.1%女生)进行为期3年的追踪, 考察青少年早期同伴拒绝的发展变化与亲社会行为发展变化的关系以及多巴胺系统基因的调节作用。结果发现:(1)青少年早期亲社会行为和同伴拒绝均呈线性上升趋势; (2)同伴拒绝的初始水平与增长速度均能预测亲社会行为发展轨迹。较高的同伴拒绝初始水平与较低的亲社会行为初始水平有关, 也与更快的亲社会行为上升趋势有关, 但是较高的同伴拒绝增长速度降低了亲社会行为的增长速度; (3)多巴胺系统多基因累加分调节同伴拒绝初始水平与亲社会行为初始水平、增长速度间的关系。相比携带较多高多巴胺含量相关等位基因的青少年, 携带较少高多巴胺含量相关等位基因的青少年同伴拒绝初始水平越高, 其亲社会行为初始水平更低、增长速度更快。

关键词: 亲社会行为, 同伴拒绝, 多巴胺系统基因×环境, 发展轨迹, 平行潜增长模型

Abstract:

Prosocial behaviors—actions intended to benefit others—are critical indicators of adolescents’ moral character and social competencies, and form the basis for societal harmony and cooperation. Adolescence is a critical period for facilitating prosocial behavior and internalizing prosocial values attributing to the ecological and biological transitions in this stage. Particularly, peer group changes and the increasing importance of peer relationships during this stage provide both risks and opportunities for the development of prosocial behaviors. In addition, adolescents may exhibit differences in the degree to which they are affected by peer experiences, which are often rooted in their genetic predispositions. Recent evidence indicated that the genes involved in dopamine neurotransmission and metabolism act in an additive manner to influence sensitivity to the environment. However, exploration regarding the dynamic trajectory of the relationship between peer experience and prosocial behavior and whether the dynamic relationship is moderated by dopaminergic genes in a longitudinal framework is still lacking. With the adoption of the multilocus genetic profile score (MGPS) approach, the present study aimed to explore the dynamic trajectory of the relationship between peer rejection and prosocial behavior, and whether the dynamic association was moderated by dopaminergic genes.

The participants comprised 1044 adolescents who were followed up at the age of 13~15 years old (mean age 13.32 ± 0.48 years old at Time 1; 50.1% females). Adolescents’ saliva samples were collected at age 13. Peer-rated prosocial behavior and peer-nominated peer rejection were collected at each time point. All measures presented a good reliability. Real-time genotyping was performed for each participant using MassARRAY RT software version 3.0.0.4 and analyzed using the MassARRAY Typer software version 3.4 (Sequenom). The relationship between the developmental trajectories of peer rejection and prosocial behavior and the moderating role of dopaminergic genes was examined via parallel latent growth model and multiple group comparison analyses.

The results showed that adolescents’ prosocial behavior and peer rejection increased linearly during the follow-up period. Higher initial levels of peer rejection were associated with lower initial levels and slower growth of prosocial behavior. The change rates of peer rejection were associated with the developmental change of prosocial behavior, that is, the slower increase in peer rejection was associated with a greater increase in prosocial behavior over time. In addition, the relationships between the initial level of peer rejection and the initial level and growth in prosocial behavior were moderated by MGPS, with lower MGPS being more sensitive to the initial level of peer rejection.

These findings support the dynamic relationship between peer relationships and prosocial behavior and shed light on the complex polygenic underpinnings of the latter.

Key words: prosocial behavior, peer rejection, dopaminergic genes × environment, developmental trajectories, parallel latent growth modeling

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