Leguire L E, Zaff B S, Freeman S, Rogers G L, Bremer D L, Wali N
Department of Ophthalmology, Children's Hospital, Columbus, OH 43205.
Vision Res. 1991;31(1):89-97. doi: 10.1016/0042-6989(91)90076-h.
To determine the threshold characteristics of optokinetic nystagmus (OKN), contrast thresholds for involuntary OKN were measured for gratings of different spatial frequency to yield an OKN-contrast sensitivity function (OKN-CSF). The OKN-CSF resembled an inverted U-shaped function with temporal-to-nasal and nasal-to-temporal movement yielding similar functions. In addition, when psychophysical CSFs were determined for separate form and movement thresholds, it was discovered that the OKN-CSF approximated the psychophysical-movement CSF rather than the psychophysical-form CSF.
为了确定视动性眼球震颤（OKN）的阈值特性，测量了不同空间频率光栅的非自主性OKN的对比度阈值，以得出OKN对比度敏感度函数（OKN-CSF）。OKN-CSF类似于倒U形函数，颞侧到鼻侧和鼻侧到颞侧的运动产生相似的函数。此外，当分别针对形状和运动阈值确定心理物理学CSF时，发现OKN-CSF接近心理物理学运动CSF而非心理物理学形状CSF。
