Ali M R, Khaleque A, Khanam M, al-Shatti A, Ahmed R U
Department of Psychology, Kuwait University, Safat.
Percept Mot Skills. 1994 Dec;79(3 Pt 1):1235-8. doi: 10.2466/pms.1994.79.3.1235.
Critical flicker frequency (CFF) of 40 men, 20 mentally retarded whose mean age was 22.0 yr. and 20 normal whose mean age was 21.5 yr., was measured under binocular viewing using the Lafayette Visual Perception Control with a display unit. Subjects had been previously tested for visual acuity and color blindness. Analysis showed a significant difference in CFF between mentally retarded persons and normal individuals, the former having lower CFF than the latter. This finding suggests lower perceptual sensitivity of the mentally retarded persons. Further research with provision for EEG recordings is suggested.
对40名男性进行了临界闪烁频率（CFF）测试，其中20名是智力迟钝者，平均年龄为22.0岁，另外20名是正常人，平均年龄为21.5岁。使用带有显示单元的拉斐特视觉感知控制器在双眼观察条件下测量了他们的临界闪烁频率。此前已对受试者进行过视力和色盲测试。分析表明，智力迟钝者和正常人的临界闪烁频率存在显著差异，前者的临界闪烁频率低于后者。这一发现表明智力迟钝者的感知敏感性较低。建议进行进一步的研究，并记录脑电图。
