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首页> 外文期刊>Electronics and Communications in Japan. Part 3, Fundamental Electronic Science >Characteristics of Alpha Wave Response to Flicker Stimuli with Color Alternation
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Characteristics of Alpha Wave Response to Flicker Stimuli with Color Alternation

机译：颜色变化对闪烁刺激的阿尔法波响应特性

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摘要

Spatiotemporal responses of the alpha wave to flicker stimuli with temporal alternation of two stimulus colors are investigated and compared to the properties of the alpha wave at rest and in response to single-color stimuli in order to evaluate the effect of the alternation of stimulus colors on the electroencephalogram. The alpha wave can be entrained by all kinds of flicker stimuli, that is, the frequency of the alpha wave shifts to that of the stimuli. The spatial distributions of the amplitude and phase difference on presentation of alternating red/blue stimuli show anomalous spatial characteristics for more than half the subjects, namely, a large amplitude in the centro-parietal region and the same phase over the entire scalp, whereas those under other stimuli show large amplitude in the occipital and frontal regions and opposite phase in the frontal and occipital regions. The results may provide useful information for considering the effect of color alternation of flicker stimuli on the electroencephalogram, as well as for modeling the generating mechanism of alpha waves. They may also be useful for evaluating the effect of color alternation in photic stimuli, such as video images and animations, on the electroencephalogram.
机译：研究了阿尔法波对闪烁刺激的时空响应以及两种刺激颜色的时间变化，并将其与静态和响应单色刺激的阿尔法波的特性进行了比较，以评估刺激颜色的变化对脑电图。各种闪烁刺激都可以带走阿尔法波，即阿尔法波的频率转移到刺激的频率上。呈现红色/蓝色交替刺激时振幅和相位差的空间分布显示了一半以上受试者的空间特征异常，即中心顶顶区域的振幅较大，并且整个头皮的相位相同。在其他刺激下，枕骨和额叶区域的振幅较大，额叶和枕骨区域的相位相反。该结果可为考虑闪烁刺激的颜色变化对脑电图的影响以及为α波的产生机理建模提供有用的信息。它们还可用于评估光刺激（例如视频图像和动画）中的颜色变化对脑电图的影响。

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