Graduate School of Medical Science and Engineering (GSMSE), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Sci Rep. 2021 Jun 1;11(1):11534. doi: 10.1038/s41598-021-90917-w.
Affective states influence our decisions even when processed unconsciously. Continuous flash suppression (CFS) is a new variant of binocular rivalry that can be used to render the prime subliminal. Nonetheless, how prior information from emotional faces suppressed by CFS influences subsequent decision-making remains unclear. Here, we employed a CFS priming task to examine the effect of the two main types of information conveyed by faces, i.e., facial identity and emotion, on the evaluation of target words as positive or negative. The hierarchical diffusion model was used to investigate the underlying mechanisms. A significant interaction effect on response time was observed following the angry face prime but not the happy or neutral face primes. The results of the diffusion model analyses revealed that the priming effects of facial identity were mapped onto the drift rate and erased the 'positive bias' (the processing advantage of positive over negative stimuli). Meanwhile, the positive emotional faces increased the nondecision time in response to negative target words. The model-based analysis implies that both facial identity and emotion are processed under CFS.
情绪状态会影响我们的决策，即使这些决策是在无意识的情况下做出的。连续闪光抑制（CFS）是一种新的双眼竞争变体，可以用来使主刺激潜意识化。然而，由 CFS 抑制的情绪面孔的先前信息如何影响随后的决策尚不清楚。在这里，我们采用 CFS 启动任务来研究两种主要类型的面部信息（即面部身份和情绪）对面部表情评估的影响。使用层次扩散模型来研究潜在的机制。在愤怒面孔启动后观察到反应时间的显著交互效应，但在快乐或中性面孔启动后则没有。扩散模型分析的结果表明，面部身份的启动效应映射到漂移率上，并消除了“积极偏见”（对积极刺激比消极刺激的处理优势）。同时，积极的情绪面孔增加了对负面目标词的非决策时间。基于模型的分析表明，面部身份和情绪都在 CFS 下进行处理。
