SMOOTH PURSUIT EYE-MOVEMENTS OF NORMAL AND SCHIZOPHRENIC SUBJECTS TRACKING AN UNPREDICTABLE TARGET
SMOOTH PURSUIT EYE-MOVEMENTS OF NORMAL AND SCHIZOPHRENIC SUBJECTS TRACKING AN UNPREDICTABLE TARGET
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DOI：
10.1016/0006-3223(90)90457-d
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发表时间：
1990-10-15
影响因子：
10.6
通讯作者：
STARK, L
中科院分区：
文献类型：
--
作者：
ALLEN, JS;MATSUNAGA, K;STARK, L
精神分裂症眼动领域的几个工作者所采用的实验范式涉及寻找在正常个体的眼动中诱导扫视平滑追踪的刺激序列。希望这些刺激的识别将导致有关精神分裂症眼跟踪功能障碍的病因或性质的线索。在这项研究中，追踪一个不可预测的目标（由总和正弦波）的正常和精神分裂症受试者的追求眼球运动进行了检查。使用均方根误差百分比（%RMS）和追踪增益分数定性和定量评估眼动跟踪性能。精神分裂症患者能够追踪不可预测的目标。这一发现对我们理解精神分裂症患者在视觉跟踪过程中的信息处理具有重要意义。
An experimental paradigm employed by several workers in the field of schizophrenic eye movements has involved finding sequences of stimuli that induce saccadic smooth pursuit in the eye movements of normal individuals. It is hoped that the identification of such stimuli will lead to clues concerning the etiology or nature of eye tracking dysfunction in schizophrenia. In this study, the pursuit eye movements of normal and schizophrenic subjects tracking an unpredictable target (composed of summed sine waves) were examined. Eye tracking performance was evaluated both qualitatively and quantitatively using percent root-mean-square (%RMS) error and pursuit gain scores. Schizophrenics are capable of tracking an unpredictable target. This finding has implications for our understanding of schizophrenic information processing during visual tracking.