Binocular interaction of visually evoked cortical potentials elicited by dichoptic binocular stimulation.
Binocular interaction of visually evoked cortical potentials elicited by dichoptic binocular stimulation.
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由双眼刺激引起的视觉诱发皮层电位的双眼相互作用。
DOI：
10.1167/14.11.4
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Mizota A.
中科院分区：
文献类型：
--
作者：
Matsumoto CS;Nakagomi R;Matsumoto H;Minoda H;Shinoda K;Iwata T;Mizota A.
翻译后摘要：摘要要分析的皮层电位引起的dichoptic刺激的优势和同胞的眼睛在不同的频率的相互作用，一对编程电源单元被用来驱动安装在右和左眼的遮光护目镜的发光二极管（LED），以引起视觉诱发皮层反应（VECP）。右眼以11.5 Hz刺激，左眼以11.0 Hz刺激。然后重复刺激，刺激频率切换到另一只眼睛。刺激时间为5 ms，采样频率为1.0Hz，采集时间为200 ms，分别提取每只眼的VECP。在同时刺激每只眼睛后，可以单独记录单个VECP。分别刺激主眼和对侧眼后，VECP的幅值无显著性差异。刺激优势眼后负峰（N-2）和第二正峰（P-2）的内隐时间均短于刺激对侧眼，但差异无显著性。而刺激频率为11.5Hz时，刺激优势眼诱发的N-2内隐时间明显缩短。通过刺激双眼引起的VECP可以通过同时刺激双眼分别记录。与使用单眼刺激的经典VECP相比，双视同时刺激需要更短的时间，并且可能是分析双眼相互作用的更灵敏的方法。
Abstract:Abstract To analyze the interaction of cortical potentials elicited by dichoptic stimulation of the dominant and fellow eyes at different frequencies, a pair of programmed power supply units were used to drive a light emitting diode (LED) mounted in the right and left eyes of light-proof goggles to elicit the visually evoked cortical responses (VECPs). The right eye was stimulated at 11.5 Hz and the left eye at 11.0 Hz. Then the stimulation was repeated with the frequency of stimulation switched to the other eyes. The stimulus duration was 5 ms. The sampling rate was 1.0 Hz, and the duration of collection was 200 ms. The VECP of each eye was extracted separately. Individual VECPs could be recorded separately after simultaneous dichoptic stimulation of each eye. The amplitudes of the VECPs were not significantly different after stimulating the dominant eye and the fellow eye separately. The implicit times of negative peak (N-2) and the second positive peak (P-2) were shorter after stimulation of the dominant eye than after stimulation of the fellow eye, but the difference was not significant. However, the implicit time of N-2 elicited by stimulating the dominant eye was significantly shorter when the stimulation rate was 11.5 Hz. The VECPs elicited by stimulating the two eyes can be recorded separately by simultaneous dichoptic stimulation. Dichoptic simultaneous stimulation required a shorter time and may be a more sensitive method of analyzing binocular interactions compared to the classic VECPs using monocular stimulation.