Isokawa-Akesson M, Komisaruk B R
J Neurosci Res. 1985;14(3):373-80. doi: 10.1002/jnr.490140309.
Fast Fourier Transform analyses were performed on finger tremor movements at 0.2-Hz intervals from 0.4 to 40 Hz in 10 human subjects, under a flickering light condition of 4-15 Hz and an unstimulated control condition. Under the control condition, the power spectrum showed an essentially normal curve distribution, except for an early frequency component in the histogram. In contrast, when the flickering light stimulus was presented, the power of specific frequency components at 8-11 Hz was strongly enhanced. This effect was induced exclusively at a frequency of 8, 9, or 11 Hz of flickering light, and this flickering frequency producing the enhancement effect differed from subject to subject. There existed a significant correlation between the frequencies of flicker and tremor at the tuned frequency. These findings demonstrate that a specific frequency of flickering light can intensify a specific frequency of physiological finger tremor, and that different individuals exhibit different optimal "tuning" frequencies.
对10名人类受试者在4至15赫兹闪烁光条件和无刺激对照条件下，以0.2赫兹间隔从0.4至40赫兹对手指震颤运动进行了快速傅里叶变换分析。在对照条件下，功率谱显示出基本正常的曲线分布，但直方图中有一个早期频率成分除外。相比之下，当呈现闪烁光刺激时，8至11赫兹特定频率成分的功率会大幅增强。这种效应仅在闪烁光频率为8、9或11赫兹时诱发，且产生增强效应的闪烁频率因人而异。在调谐频率下，闪烁频率与震颤频率之间存在显著相关性。这些发现表明，特定频率的闪烁光可增强特定频率的生理性手指震颤，且不同个体表现出不同的最佳“调谐”频率。
