Dawson W W, Barris M C
Invest Ophthalmol Vis Sci. 1978 Dec;17(12):1209-12.
Human cortical evoked responses elicited by patterns are very size and focus dependent, but those produced by moving laser speckle patterns (LASCERs) remain similar in amplitude and subjective sharpness over a wide (+/- 20 D) variation in added lens power. Moreover, cortical signal amplitudes evoked by speckle displays with high average spatial frequencies are significantly larger than those reported for check stimuli equivalent in spatial frequency.
由图案引发的人类皮层诱发反应非常依赖于大小和焦点，但由移动激光散斑图案（LASCERs）产生的反应在附加透镜屈光度的广泛（±20 D）变化范围内，其幅度和主观清晰度保持相似。此外，由具有高平均空间频率的散斑显示诱发的皮层信号幅度明显大于在空间频率上等效的方格刺激所报告的幅度。
