Effect of Background Element Difference on Regional Cerebral Blood Flow while Viewing
Effect of Background Element Difference on Regional Cerebral Blood Flow while Viewing
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观察时背景元素差异对局部脑血流的影响
DOI：
10.1007/978-3-030-49282-3_29
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Hiroki Takada
中科院分区：
文献类型：
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作者：
Fumiya Kinoshita;Honoka Okuno;Hideaki Touyama;Masumi Takada;Masaru Miyao;Hiroki Takada
在我们之前的研究中，我们发现通过改变身体摇摆的意识条件来控制视觉诱发姿势反应（VEPR），可以影响视觉诱发晕动病（VIMS）的主观感受。因此，在这项研究中，我们验证了眼球运动、身体摇摆和晕车易感性之间的关系。在参与者观看立体电影时控制身体摇摆的意识揭示了 VIMS 或晕动病的三种相关理论的参与：感觉冲突理论、姿势不稳定理论和眼动理论。参与者填写了晕动病易感性问卷简表（MSSQ-short）。此后，在演示实验中，参与者在预指令后观看了由多个彩色球组成的三维电影，这些球在水平方向上以 0.25 Hz 的正弦曲线移动 3 分钟。预先指示包括“不受控制的意识”、“保持静态、直立的姿势”和“向相同/相反方向摇摆身体”。这项研究记录了身体摇摆和眼电图（EOG）数据。记录的 EOG 数据被转换为眼球运动速度。主要结果表明，根据眼球运动的相关分析，易感参与者在容易发生 OKN 的条件下表现出视动性眼球震颤 (OKN) 的频率降低。因此，我们得出结论，OKN 频率降低引起的感觉冲突是 VIMS 的主要原因，因为 OKN 在姿势维持中发挥作用。这是与传统眼动理论不同的假设。
In our previous study, we found it is possible to affect subjective feelings of visually induced motion sickness (VIMS) by controlling visually evoked postural responses (VEPRs) by changing conditions of consciousness of body sway. Thus, in this study, we verified the relationship between eye movements, body sway, and the susceptibility to motion sickness. Controlling consciousness of body sway while participants viewed stereoscopic movies revealed the involvement of three related theories for VIMS or motion sickness: sensory conflict theory, postural instability theory, and eye movement theory. Participants filled in a motion sickness susceptibility questionnaire short form (MSSQ-short). Thereafter, in the demonstration experiment, participants watched a three-dimensional movie consisting of several colored balls that moved sinusoidally at 0.25 Hz in the horizontal direction for 3 min after pre-instruction. Pre-instructions included “uncontrolled consciousness”, “keep a static, upright posture”, and “sway body in the same/opposite direction”. This study recorded both body sway and electrooculography (EOG) data. Recorded EOG data were converted to eye movement velocity. The main result showed that susceptible participants exhibited a decreased frequency of optokinetic nystagmus (OKN) under conditions prone to the occurrence of OKN from correlated analysis for eye movements. Hence, we concluded that sensory conflict induced by decreases in the frequency of OKN is the primary cause of VIMS as OKN has a role in postural maintenance. This is a different hypothesis than the traditional eye movement theory.