Effects of Light and Sound on the Prefrontal Cortex Activation and Emotional Function: A Functional Near-Infrared Spectroscopy Study.
Effects of Light and Sound on the Prefrontal Cortex Activation and Emotional Function: A Functional Near-Infrared Spectroscopy Study.
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DOI：
10.3389/fnins.2017.00321
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发表时间：
2017
影响因子：
4.3
通讯作者：
Seiyama A
中科院分区：
文献类型：
--
作者：
Hori S;Mori K;Mashimo T;Seiyama A
我们构建了一个基于近红外光谱的实时反馈系统，利用前额皮质（PFC）中氧合血红蛋白浓度[Δ(oxy-Hb)]的变化来估计受试者的情绪状态。使用该系统，我们研究了由光和重建的瀑布声组成的持续温和且模棱两可的刺激对 PFC 中 Δ[oxy-Hb] 的影响。视觉（光）和听觉（声音）刺激随机且独立地变化，具体取决于个体受试者的情绪状态。在 5 分钟的实验后，通过按 11 分制评分的问卷调查由刺激引起的情绪状态，从 +5（愉快）到 -5（不愉快），一直到 0（中性）。 757 名受试者的结果显示，PFC 中的 Δ[oxy-Hb] 与情绪变化表现出微弱但显着的相关性，给定的持续温和刺激类似于对强烈的愉快/不愉快刺激的反应。根据结果，我们讨论了由光和声音等轻微和微弱的刺激引起的愉快/不愉快的微弱情绪变化的产生。
We constructed a near infrared spectroscopy-based real-time feedback system to estimate the subjects' emotional states using the changes in oxygenated hemoglobin concentration [Δ(oxy-Hb)] in the prefrontal cortex (PFC). Using this system, we investigated the influences of continual mild and equivocal stimuli consisting of lights and a reconstructed waterfall sound on Δ[oxy-Hb] in the PFC. The visual (light) and auditory (sound) stimuli changed randomly and independently, depending on the emotional states of the individual subjects. The emotional states induced by the stimuli were examined via a questionnaire rated on an 11-point scale, from +5 (pleasant) to −5 (unpleasant), through 0 (neutral), after the 5-min experiments. Results from 757 subjects revealed that Δ[oxy-Hb] in the PFC exhibited a weak, but significant, correlation with emotional change, with the given continual and mild stimuli similar to that experienced in response to the intense pleasant/unpleasant stimuli. Based on the results we discuss the generation of pleasant/unpleasant weak emotional change induced by mild and weak stimuli such as light and sound.