ISSN 0439-755X
CN 11-1911/B

Acta Psychologica Sinica ›› 2023, Vol. 55 ›› Issue (5): 711-725.doi: 10.3724/SP.J.1041.2023.00711

• Reports of Empirical Studies • Previous Articles     Next Articles

The interactive effects of parent-child relationship, sensory processing sensitivity, and the COMT Val158Met polymorphism on preschoolers’ prosocial behaviors

LIU Qianwen1,2, WANG Zhenhong1,2()   

  1. 1. School of Psychology, Shaanxi Normal University
    2. Shaanxi Provincial Key Research Center of Child Mental and Behavioral Health, Xi’an 710062, China
  • Published:2023-05-25 Online:2023-02-14

Abstract:

The present study investigated the interactive effects of parent-child relationship, sensory processing sensitivity (SPS), and the COMT Val158Met polymorphism on preschoolers’ prosocial behaviors. A total of 507 preschoolers (Mage = 4.83, SD = 0.90; 236 girls) were recruited through advertisements at two local kindergartens. Saliva samples for DNA extraction were obtained from preschoolers. Their parents completed questionnaires assessing parent-child relationship, children’s SPS, and prosocial behaviors. The results indicated that the three-way interactive effect of parent-child conflict, SPS, and the COMT gene Val158Met polymorphism on prosocial behaviors was significant, that is, Val/Val genotype carriers with high SPS showed significantly more prosocial behaviors under a low level of parent-child conflict and fewer prosocial behaviors under a high level of parent-child conflict. However, there was no difference in prosocial behaviors of Val/Val genotype carriers with low SPS in a high and low-level conflict. These findings signified the different types of sensitivities (temperament and genes) to the family stressful environment may have a multiplicative effect on preschoolers’ prosocial behaviors and contributed to a further understanding of children’s prosocial behaviors based on the person × environment approach, especially from the perspective of children’s multiple sensitivities.

Key words: parent-child relationship, sensory processing sensitivity, COMT gene, preschoolers, prosocial behaviors, person × environment interaction