Gaymard B, Rivaud S, Amarenco P, Pierrot-Deseilligny C
Unité INSERM 289, Hôpital de la Salpétrière, Paris, France.
Ann Neurol. 1994 Jan;35(1):108-12. doi: 10.1002/ana.410350117.
We compared the accuracy of saccades made to seen or remembered visual targets in 3 patients with saccadic dysmetria due to cerebellar lesions. Saccadic dysmetria was worse for saccades to remembered targets and for saccades to flashed targets visible for only 150 msec (i.e., invisible at the time of saccade). Furthermore, no corrective saccades were made if the target was not visible. These results have implications for testing saccadic dysmetria and suggest new hypotheses about the control of saccadic amplitude.
我们比较了3例因小脑病变导致眼球运动失调的患者，对可见或记忆中的视觉目标进行扫视的准确性。对于朝向记忆目标的扫视以及朝向仅在150毫秒内可见（即在扫视时不可见）的闪烁目标的扫视，眼球运动失调情况更严重。此外，如果目标不可见，则不会产生矫正性扫视。这些结果对测试眼球运动失调具有启示意义，并提出了关于扫视幅度控制的新假设。
