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实验心理学实验课件 PowerPoint PPT Presentation


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实验心理学实验课件. 实验一、暗适应. 阈值不是固定不变的,而是随各种内.外因素的影响而变化的。在众多的影响因素中,适应是一个最重要的因素。例如,人眼在暗适应的条件下,阈值会受适应时间的长短而作有规律的变化。在开始暗适应的五分钟内,刺激阈值下降得快,即视觉敏感性提高得很快,在过了 20 分钟以后,刺激阈值就不再下降,其曲线接近渐近线。本实验的目的是通过暗适应曲线的测定来证实阈值是随外界条件而变化的。. 暗适应仪一台(没有暗适应仪时也可用视野计来替代),停钟一台,热电偶或亮度计一台,计录纸。. 实验程序. 1 、采用常定刺激法测定暗适应曲线。在实验中采用一组固定的物理刺激的

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实验心理学实验课件

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