A growing body of research suggests that emotional chemosignals in others’ body odour (BO), particularly those sampled during fearful states, enhance emotional face perception in conscious and preconscious stages. For instance, emotional faces access visual awareness faster when presented with others’ fear BOs. However, the effect of these emotional signals in self-BO, i.e., one’s own BO, is still neglected in the literature. In the present work, we sought to determine if emotional self-BOs modify the access to visual awareness of emotional faces. Thirty-eight women underwent a breaking-Continuous Flash Suppression (bCFS) task in which they were asked to detect fearful, happy, and neutral faces, as quickly and accurately as possible, while being exposed to their fear, happiness, and neutral self-BOs. Self-BOs were previously collected and later delivered via an olfactometer, using an event-related design. Results showed a main effect of emotional faces, with happy faces being detected significantly faster than fearful and neutral faces. However, our hypothesis that fear self-BOs would lead to faster emotional face detection was not confirmed, as no effect of emotional self-BOs was found – this was confirmed with Bayesian analyses. Although caution is warranted when interpreting these results, our findings suggest that emotional face perception is not modulated by emotional self-BOs, contrasting with the literature on others’ BOs. Further research is needed to understand the role of self-BOs in visual processing and emotion perception.

中文翻译：

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情绪性的自身体味不会影响情绪性面孔对视觉意识的获取

越来越多的研究表明，他人体味（BO）中的情绪化学信号，尤其是在恐惧状态下采样的体味，可以增强有意识和前意识阶段的情绪面部感知。例如，当面对他人的恐惧 BO 时，情绪化的面孔会更快地获得视觉意识。然而，这些情绪信号对自我BO（即自己的BO）的影响在文献中仍然被忽视。在目前的工作中，我们试图确定情绪自我 BO 是否会改变对情绪面孔的视觉感知。三十八名女性接受了一项突破性的连续闪光抑制（bCFS）任务，要求她们尽可能快速、准确地检测出恐惧、快乐和中性的面孔，同时暴露在她们的恐惧、快乐和中性的自我中。 BO。之前收集了自我 BO，然后使用与事件相关的设计通过嗅觉计进行传递。结果显示，情绪面孔的主要影响是，检测到快乐面孔的速度明显快于检测到恐惧和中性面孔的速度。然而，我们关于恐惧自我 BO 会导致更快的情绪面部检测的假设并未得到证实，因为没有发现情绪自我 BO 的影响——这一点已通过贝叶斯分析得到证实。尽管在解释这些结果时需要谨慎，但我们的研究结果表明，情绪化的面部感知不受情绪化的自我 BO 的调节，这与其他人的 BO 的文献形成鲜明对比。需要进一步的研究来了解自我 BO 在视觉处理和情绪感知中的作用。