Parent-child separation caused by parental migration could have adverse effects on individuals’ emotional adaptation. However, research on this topic is limited in its focus on childhood or adolescence samples and solely environmental factors, and less is known about how positive environmental factors, biological factors and parent-child separation experience interact to influence emotional adaptation in emerging adulthood. The present study addressed these issues by investigating the relationships between parent-child cohesion and positive/negative affect, and examining the moderating roles of sympathetic nervous system activity (measured by skin conductance level reactivity, SCLR) and parent-child separation experience in the relationships. Data from 248 college students (M_age = 18.91 years, SD = 0.70; 32.3% males), including 158 college students with parent-child separation experience and 90 college students without parent-child separation experience. The results showed that parent-child cohesion predicted college students’ positive/negative affect. Moreover, the moderating role of SCLR on the relationship between father-child cohesion and negative affect varied with parent-child separation experience. Specifically, father-child cohesion negatively predicted negative affect when SCLR was lower for college students with parent-child separation experience, while negatively predicted negative affect when SCLR was higher for college students without parent-child separation experience. These results indicate that the interaction pattern of Biological × Environmental predicting college students’ positive/negative affect varies across parent-child separation status in childhood or adolescence.

父母迁移导致的亲子分离可能对个体的情绪适应产生不利影响。然而，关于这一主题的研究仅限于关注童年或青春期样本以及单纯的环境因素，而对于积极的环境因素、生物因素和亲子分离经历如何相互作用影响成年后的情绪适应知之甚少。本研究通过调查亲子凝聚力与积极/消极影响之间的关系，并检查交感神经系统活动（通过皮肤电导水平反应性，SCLR 测量）和亲子分离经历在关系中的调节作用来解决这些问题. 来自248名大学生的数据（M_年龄 =18.91岁，标清 = 0.70; 32.3%为男性），其中有亲子分离经历的大学生158人，无亲子分离经历的大学生90人。结果表明，亲子凝聚力可以​​预测大学生的积极/消极情感。此外，SCLR 对父子凝聚力与消极情感之间关系的调节作用因亲子分离经历而异。具体而言，对于有亲子分离经历的大学生，当 SCLR 较低时，父子凝聚力负向预测负面情绪，而对于没有亲子分离经历的大学生，当 SCLR 较高时，父子凝聚力负向预测负面情绪。