MacDuffie Katherine E, Knodt Annchen R, Radtke Spenser R, Strauman Timothy J, Hariri Ahmad R
Department of Speech and Hearing Sciences, University of Washington, Seattle, WA, USA.
Department of Psychology and Neuroscience, Duke University, Durham, NC, USA.
Personal Neurosci. 2019 Jun 13;2:e1. doi: 10.1017/pen.2019.1. eCollection 2019.
Auto-biological beliefs-beliefs about one's own biology-are an understudied component of personal identity. Research participants who are led to believe they are biologically vulnerable to affective disorders report more symptoms and less ability to control their mood; however, little is known about the impact of self-originating beliefs about risk for psychopathology, and whether such beliefs correspond to empirically derived estimates of actual vulnerability. Participants in a neuroimaging study ( = 1256) completed self-report measures of affective symptoms, perceived stress, and neuroticism, and an emotional face processing task in the scanner designed to elicit threat responses from the amygdala. A subsample ( = 63) additionally rated their own perceived neural response to threat (i.e., amygdala activity) compared to peers. Self-ratings of neural threat response were uncorrelated with actual threat-related amygdala activity measured via BOLD fMRI. However, self-ratings predicted subjective distress across a variety of self-report measures. In contrast, in the full sample, threat-related amygdala activity was uncorrelated with self-report measures of affective distress. These findings suggest that beliefs about one's own biological threat response-while unrelated to measured neural activation-may be informative indicators of psychological functioning.
自我生物学信念——关于自身生物学特征的信念——是个人身份中一个研究不足的组成部分。那些被引导相信自己在生物学上易患情感障碍的研究参与者报告了更多症状,且控制情绪的能力更弱;然而,对于源自自身的心理病理学风险信念的影响,以及这些信念是否与基于实证得出的实际易感性估计相符,我们知之甚少。一项神经影像学研究中的参与者( = 1256)完成了情感症状、感知压力和神经质的自我报告测量,以及扫描仪中一项旨在引发杏仁核威胁反应的情绪面孔加工任务。一个子样本( = 63)还将自己对威胁的感知神经反应(即杏仁核活动)与同龄人进行了比较。神经威胁反应的自我评分与通过血氧水平依赖性功能磁共振成像(BOLD fMRI)测量的实际威胁相关杏仁核活动不相关。然而,自我评分在各种自我报告测量中预测了主观痛苦。相比之下,在整个样本中,与威胁相关的杏仁核活动与情感痛苦的自我报告测量不相关。这些发现表明,关于自身生物学威胁反应的信念——虽然与测量的神经激活无关——可能是心理功能的有益指标。