Segerstrom S C, Taylor S E, Kemeny M E, Fahey J L
Department of Psychology, University of California, Los Angeles, USA.
J Pers Soc Psychol. 1998 Jun;74(6):1646-55. doi: 10.1037//0022-3514.74.6.1646.
This study explored prospectively the effects of dispositional and situational optimism on mood (N = 90) and immune changes (N = 50) among law students in their first semester of study. Optimism was associated with better mood, higher numbers of helper T cells, and higher natural killer cell cytotoxicity. Avoidance coping partially accounted for the relationship between optimism and mood. Among the immune parameters, mood partially accounted for the optimism-helper T cell relationship, and perceived stress partially accounted for the optimism-cytotoxicity relationship. Individual differences in expectancies, appraisal, and mood may be important in understanding psychological and immune responses to stress.
本研究前瞻性地探讨了性格乐观和情境乐观对第一学期法律专业学生情绪（N = 90）和免疫变化（N = 50）的影响。乐观与更好的情绪、更多的辅助性T细胞以及更高的自然杀伤细胞细胞毒性相关。回避应对部分解释了乐观与情绪之间的关系。在免疫参数中，情绪部分解释了乐观与辅助性T细胞的关系，而感知到的压力部分解释了乐观与细胞毒性的关系。期望、评估和情绪方面的个体差异可能对理解压力的心理和免疫反应很重要。
