Effects of Image Presentation Using a Head-Mounted Display on Muscle and Brain Activity during Swallowing
Effects of Image Presentation Using a Head-Mounted Display on Muscle and Brain Activity during Swallowing
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DOI：
10.4236/wjns.2022.122008
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Kengo Hoyano;Yasuhiro Ogoshi
中科院分区：
文献类型：
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作者：
Kengo Hoyano;Yasuhiro Ogoshi
导读：众所周知，人类在与他人一起吃饭时，味觉会增强，会消耗更多的食物。这种影响被称为社会促进饮食。我们以前报道过，自我形象也有社会促进饮食的效果。在本研究中，我们调查了头戴式显示器（HMD）作为呈现自我形象的一种手段的效果。方法：14名健康成人（7名女性和7名男性）纳入研究。参与者的平均年龄为20.4岁。实验条件如下：呈现条件包括SG条件和MT条件，在SG条件下，图像被投影在智能眼镜上，在MT条件下，图像被投影在监视器上。刺激条件包括投影参与者自身图像的自身图像条件（Self condition）和投影背景图像的背景图像条件（Background condition）。参与者被要求在四种条件下食用三次绿色茶果冻，这四种条件包括呈现和刺激条件的组合。肌电图（EMG）和脑电图（EEG）分别用于测量舌骨上肌群的肌肉活动和脑活动。结果：“SG-自我”状态下的肌电显著高于“SG-背景”和“MT-背景”状态下的肌电。“MT-自我”条件下的EMG显著高于“MT-背景”条件下的EMG。在吞咽开始前的EEG中，“SG-自我”在α带中显著低于“MT-背景”，在β带中显著高于“MT-背景”。“SG-自身”的β-α比率显著高于“SG-背景”和“MT-背景”，“MT-自身”的β-α比率显著高于“MT-背景”。结论：这些结果表明，自我形象影响肌肉和大脑活动在吞咽，无论呈现条件，如HMD或显示器。
Introduction: It is well known that humans have an increased sense of taste and consume more food when eating with others. This effect is called social facilitation of eating. We previously reported that self-images also have the effect of social facilitation of eating. In the present study, we investigated the effect of a head-mounted display (HMD) as a means of presenting self-images. Methods: Fourteen healthy adults (7 females and 7 males) were included in the study. The mean age of the participants was 20.4 years. The experimental conditions were as follows: the presentation conditions include the SG condition, in which an image was projected on the smart glasses, and the MT condition, in which an image was projected on the monitor. The stimulation conditions include the self-image condition (Self condition), in which the participant’s own image was projected, and the background image condition (Background condition), in which the background image was projected. Participants were asked to consume green tea jelly three times under the four conditions, which consisted of combinations of the presentation and stimulation conditions. Electromyography (EMG) and electroencephalography (EEG) were used to measure the muscle activity of the suprahyoid muscle group and brain activity, respectively. Results: The EMG of the “SG-Self” condition was significantly higher than that of “SG-Background” and “MT-Background” conditions. The EMG of the “MT-Self” condition was significantly higher than that of the “MT-Background” condition. In the EEG before the start of swallowing, “SG-Self” was significantly lower in the alpha band and higher in the beta band than “MT-Background”. The beta-alpha ratio was significantly higher for “SG-Self” than for “SG-Background” and “MT-Background” and higher for “MT-Self” than for “MT-Background”. Conclusion: These results suggest that self-images influence muscle and brain activities during swallowing, regardless of the presentation conditions, such as HMD or monitor.