男性同性恋与男性异性恋对厌恶情绪调节模式的差异  

Different patterns of aversive emotion regulation in homosexual and heterosexual men

作　　者：胡少华[1] 许毅[1] 李鹏[1] 汪启东[1] 胡健波[1] 魏宁[1] 张敏鸣[1] 

机构地区：[1]浙江大学医学院附属第一医院,浙江杭州310003

出　　处：《浙江大学学报（医学版）》2008年第5期487-493,共7页Journal of Zhejiang University(Medical Sciences)

基　　金：浙江省卫生厅项目(2006A042)

摘　　要：目的:探索男性同性恋和男性异性恋与负性情绪调节相关的大脑功能变化,比较两组之间调节模式的差异。方法:健康男性同性恋和健康男性异性恋各10名参与本研究。采用Block设计的3种类型性爱活动录像对两组被试者进行视觉刺激,诱发其厌恶情绪;利用功能核磁共振成像技术进行脑功能成像,使用SPM2软件对图像进行分析和统计。结果:男性同性恋组和男性异性恋组分别在女-女和男-男性刺激下,诱发达到了相同程度的厌恶情绪。两组被试的前额回、颞回、枕回及小脑均被激活,海马和楔前叶的激活存在左右侧的差异性。男性同性恋组还观察到右扣带回的激活,而男性异性恋组则无类似现象。结论:男性同性恋和男性异性恋对负性情绪的调节模式中,部分相关的神经结构存在敏感性的差异和侧化现象。Objective： To compare the differences between homosexual and heterosexual men in the pattern of induced aversive emotion regulation. Methods： Ten healthy homosexual men and 10 heterosexual men were investigated by functional magnetic resonance imaging under three types of visual sexual stimuli designed by Block. SPM2 software was used for data analysis. Results： Same levels of negative emotions of homosexualmen and heterosexual were induced by female-female and male-male erotic stimuli respectively. Activations of same brain regions including prefrontal gyrus,temporal gyrus,occipital gyrus and cerebellum were observed in two groups. However,there were significant differences in the side of hippocampus and precuneus. Activations of right cingulate cortex were observed in homosexual men,but not in heterosexualmen. Conclusion： There are some differences in the patterns of aversive emotion regulation between homosexual and heterosexual men.

关 键 词：同性恋 男性 性别因素 情绪 磁共振成像 

分 类 号：B841[哲学宗教—基础心理学]