Manning K A
J Neurosci. 1986 Jul;6(7):1976-82. doi: 10.1523/JNEUROSCI.06-07-01976.1986.
The attenuation of vision that has long been known to accompany saccadic eye movement has a significant component that is not attributable to visual masking or image smear, and this suppression of vision is now associated with nonsaccadic movement. The purpose of the present experiment was to determine the time course of visual suppression during a vergence eye movement. Suppression was evaluated psychophysically in human observers by measuring their loss of sensitivity to a brief, full-field decrement of light during 6 degrees-9 degrees convergence. Vergence-related suppression was similar in total duration and amplitude to saccadic and blink-related suppression. Since these other forms of oculomotor activity are vastly different in speed and total duration, it is unlikely that suppression results directly from the activity itself. Instead, these results support the hypothesis that a common, more centrally originating, suppression of vision occurs during eye movements, including saccades, eyeblinks, and vergence. Thus, while vision during eye movements can often be reduced through masking and smearing effects, the movement-dependent visual suppression measured in these experiments is a more generally occurring event.
长期以来已知伴随眼球扫视运动出现的视觉衰减有一个重要成分，该成分并非归因于视觉掩蔽或图像模糊，且这种视觉抑制现在与非扫视运动相关。本实验的目的是确定在双眼辐辏运动期间视觉抑制的时间进程。通过测量人类观察者在6度至9度辐辏期间对短暂、全场光衰减的敏感度损失，以心理物理学方法评估抑制情况。与辐辏相关的抑制在总持续时间和幅度上与扫视和眨眼相关的抑制相似。由于这些其他形式的眼球运动活动在速度和总持续时间上有很大差异，抑制不太可能直接由活动本身导致。相反，这些结果支持这样一种假设，即在包括扫视、眨眼和辐辏在内的眼球运动期间，会发生一种共同的、起源更靠中枢的视觉抑制。因此，虽然眼球运动期间的视觉常常可通过掩蔽和模糊效应而降低，但在这些实验中测量到的与运动相关的视觉抑制是一种更普遍发生的现象。
