焦虑中的化学感应:三叉神经系统很重要。

IF 2.8 4区 心理学 Q1 BEHAVIORAL SCIENCES Chemical Senses Pub Date : 2023-01-01 DOI:10.1093/chemse/bjad010
Olivier Fortier-Lebel, Émilie Hudon, Benjamin Boller, Johannes Frasnelli
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引用次数: 0

摘要

在视觉和听觉模式的认知和感觉任务中,焦虑导致的知觉偏差已得到充分证明。事件相关电位通过对神经过程的特定测量,为这一证据做出了巨大贡献。关于化学感官是否存在这种偏差,目前仍未达成共识;化学感官事件相关电位(CSERPs)是澄清不同结果的绝佳工具,特别是因为晚期阳性成分(LPC)可能是化学感官刺激后情绪参与的指标。本研究考察了状态和特质焦虑与纯嗅觉和混合嗅觉-三叉神经 LPC 的振幅和潜伏期之间的关联。在这项研究中,20 名平均年龄为 24.6 岁(SD = 2.6)的健康参与者(11 名女性)填写了一份有效的焦虑测量问卷(STAI),并在 40 次纯嗅觉刺激(苯乙醇)和 40 次嗅觉-三叉神经混合刺激(桉叶油醇)期间记录了 CSERP。在 Cz(位于中线中央的电极)处测量了每位受试者的 LPC 潜伏期和振幅。我们观察到,在嗅觉-三叉神经混合刺激条件下,LPC潜伏期与状态焦虑评分之间存在明显的负相关(r(18) = -0.513; P = 0.021),而在纯嗅觉刺激条件下则没有。我们没有观察到 LPC 振幅受到任何影响。这项研究表明,较高程度的状态焦虑与对混合嗅觉-三叉神经刺激更快速的知觉电生理反应有关,但与对纯气味的反应无关。
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Chemosensation in anxiety: the trigeminal system matters.

The presence of a perceptual bias due to anxiety is well demonstrated in cognitive and sensory task for the visual and auditory modality. Event-related potentials, by their specific measurement of neural processes, have strongly contributed to this evidence. There is still no consensus as to whether such a bias exists in the chemical senses; chemosensory event-related potentials (CSERPs) are an excellent tool to clarify the heterogeneous results, especially since the Late Positive Component (LPC) may be an indicator of emotional involvement after chemosensory stimulation. This research examined the association between state and trait anxiety and the amplitude and latency of pure olfactory and mixed olfactory-trigeminal LPC. In this study, 20 healthy participants (11 women) with a mean age of 24.6 years (SD = 2.6) completed a validated questionnaire to measure anxiety (STAI), and CSERP was recorded during 40 pure olfactory stimulations (phenyl ethanol) and 40 mixed olfactory-trigeminal stimulations (eucalyptol). LPC latency and amplitude were measured at Cz (electrode located at midline central) for each participant. We observed a significant negative correlation between LPC latencies and the state anxiety scores for the mixed olfactory-trigeminal condition (r(18) = -0.513; P = 0.021), but not for the pure olfactory condition. We did not observe any effect on LPC amplitudes. This study suggests that a higher level of state anxiety is related to a more rapid perceptual electrophysiological response for mixed olfactory-trigeminal stimuli but not for pure odors.

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来源期刊
Chemical Senses
Chemical Senses 医学-行为科学
CiteScore
8.60
自引率
2.90%
发文量
25
审稿时长
1 months
期刊介绍: Chemical Senses publishes original research and review papers on all aspects of chemoreception in both humans and animals. An important part of the journal''s coverage is devoted to techniques and the development and application of new methods for investigating chemoreception and chemosensory structures.
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