Ron S, Schmid R, Orpaz D
Occupational Health and Rehabilitation Institute, Lowenstein Hospital, Raanana, Israel.
Brain Behav Evol. 1989;33(2-3):179-82. doi: 10.1159/000115925.
A mathematical model of eye tracking of periodic square wave target motion has previously been proposed. In this work the model was further studied with regard to saccadic response time to symmetrical square wave target motion in 6 patients with unilateral parietal lesions following cerebrovascular accidents. Three types of saccadic response time were noted. In patients with type I, saccades contralateral to the damaged hemisphere had similar characteristics to those found in ipsilateral direction, but with longer response time. In those with type II, the saccadic response time was about the same on movement in either direction for repetitive target cycle durations of 1.2 or 2.0 s. In patients with type III, the target motion could not be predicted, in either direction.
先前已提出周期性方波目标运动的眼动数学模型。在这项研究中，对6例脑血管意外后单侧顶叶病变患者在对称方波目标运动时的扫视反应时间进行了进一步研究。记录到三种类型的扫视反应时间。I型患者中，与受损半球对侧的扫视具有与同侧方向相似的特征，但反应时间更长。II型患者中，对于重复目标周期持续时间为1.2秒或2.0秒的情况，向任一方向运动时的扫视反应时间大致相同。III型患者中，目标向任一方向的运动均无法预测。
