Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.
Inserm U 1127, CNRS UMR 7225, Sorbonne Université, UPMC Univ Paris 06, UMR S 1127, Institut du Cerveau et de la Moelle, ICM-A-IHU, Social and Affective Neuroscience (SAN) Laboratory & Prisme Platform, Paris, France.
PLoS One. 2018 Nov 6;13(11):e0206889. doi: 10.1371/journal.pone.0206889. eCollection 2018.
Emotions unfold over time with episodes differing in explosiveness (i.e., profiles having a steep vs. a gentle start) and accumulation (i.e., profiles increasing over time vs. going back to baseline). In the present fMRI study, we wanted to replicate and extend previous findings on the psychological and neural mechanisms underlying emotion explosiveness and accumulation. Specifically, we aimed to: (a) replicate the finding that different neural mechanisms are associated with emotion explosiveness and accumulation, (b) replicate the finding that adopting a self-distanced (vs. self-immersed) perspective decreases emotion explosiveness and accumulation at the level of self-report, and (c) examine whether adopting a self-distanced (vs. self-immersed) perspective similarly modulates activity in the brain regions associated with emotion explosiveness and accumulation. Participants in an fMRI scanner were asked to adopt a self-immersed or self-distanced perspective while reading and thinking about negative social feedback, and to report on felt changes in negative affect during that period using an emotion intensity profile tracking approach. We replicated previous findings showing that emotion explosiveness and accumulation were related to activity in regions involved in self-referential processing (such as the medial prefrontal cortex) and sustained visceral arousal (such as the posterior insula), respectively. The finding that adopting a self-distanced (vs. self-immersed) perspective lowers emotion explosiveness and accumulation was also replicated at a self-report level. However, perspective taking did not impact activity in the neural correlates of emotion explosiveness and accumulation.
情绪随着时间的推移而展开，不同的爆发性（即陡峭与平缓的模式）和积累性（即随时间增加与回到基线的模式）。在本 fMRI 研究中，我们希望复制并扩展之前关于情绪爆发性和积累性的心理和神经机制的研究结果。具体而言，我们旨在：(a) 复制不同神经机制与情绪爆发性和积累性相关的发现，(b) 复制采用自我疏离（与自我沉浸）视角会降低自我报告层面上的情绪爆发性和积累性的发现，以及 (c) 检查采用自我疏离（与自我沉浸）视角是否同样调节与情绪爆发性和积累性相关的大脑区域的活动。参与者在 fMRI 扫描仪中被要求在阅读和思考负面社会反馈时采用自我沉浸或自我疏离的视角，并使用情绪强度曲线跟踪法报告在此期间负面情绪的变化。我们复制了之前的发现，即情绪爆发性和积累性与涉及自我参照处理（如内侧前额叶皮质）和持续内脏唤醒（如后岛叶）的区域的活动有关。在自我报告层面上，也复制了采用自我疏离（与自我沉浸）视角会降低情绪爆发性和积累性的发现。然而，视角转换并没有影响情绪爆发性和积累性的神经相关因素的活动。
