Eye movement patterns in reading as a function of visual field defects and contrast sensitivity loss
Eye movement patterns in reading as a function of visual field defects and contrast sensitivity loss
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DOI：
10.1016/s0010-9452(96)80006-2
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发表时间：
1996-09-01
期刊：
影响因子：
3.6
通讯作者：
Zoccolotti, P
中科院分区：
文献类型：
--
作者：
DeLuca, M;Spinelli, D;Zoccolotti, P
在阅读过程中的扫视眼球运动作为一个功能的视野切割和视觉对比敏感度的损害。五名患者与各种视野缺损进行了比较，五个年龄匹配的控制。右侧视野缺损的患者表现为双眼扫视次数增加和幅度降低，左侧视野缺损的患者表现出与对照组更相似的模式。2例患者在中高空间频率范围内表现出选择性缺陷;他们是唯一在阅读期间表现出平均注视时间延长的患者。这些结果表明，选择性影响阅读取决于初级感觉缺陷。这些研究结果的临床意义进行了简要讨论。
Saccadic eye movements during reading were examined as a function of the side of visual field cut and the impairment of visual contrast sensitivity. Five patients with various visual field defects were compared to five age-matched controls. Patients with right visual field defect showed an increase in the number of rightward saccades and a decrease in their amplitude, and patients with left visual field defects showed a pattern more similar to that of the control subjects, Two patients showed a selective deficit in the range of medium-high spatial frequency; they were the only patients to show a lengthening of mean fixation time during reading. These results indicate selective effects on reading depending on primary sensory defects. The clinical relevance of these findings is briefly discussed.