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OPTOKINETIC NYSTAGMUS INDUCED BY MOVING COMPOUND GRATINGS
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- Author:
- No author available
- Journal Title:
- ACTA PHYSIOLOGICA SINICA
- Issue:
- 6
- DOI:
- 10.3321/j.issn:0371-0874.1997.06.008
- Key Word:
- 视动眼颤;运动感知;复合运动条纹;合成运动;分别运动;交替视动震颤
Abstract： 研究视动震颤(optokinetic nystagmus,OKN)眼动系统在同时包含两个二维运动的复合运动条纹(moving compound gratings)刺激下的反应特性,并探讨两种子条纹(component grattng)运动方向的夹角和运动速度的影响.实验结果发现,在一定参数范围内,复合运动条纹引起了双重交替OKN反应,即OKN交替地跟踪合成运动(coherence)和分别运动(transparency);在跟踪分别运动中,又是交替地跟踪两种子条纹的运动.实验结果还发现,随着两种子条纹运动方向的夹角减小、速度减小,OKN反应跟踪合成运动的时间增加;其中夹角的影响是决定性的.
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