Mechanism of saccadic eye movements.

Mechanism of saccadic eye movements.
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眼球扫视运动的机制。

DOI:
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发表时间:
1954
期刊:
A M A Archives of Ophthalmology
影响因子:
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通讯作者:
G. Westheimer
G. Westheimer
中科院分区:
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文献类型:
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作者:
G. Westheimer

文献摘要

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DODGE是第一个系统地研究和分类各种眼球运动的人,他将眼球位置的快速变化称为“扫视运动”,这种变化通常发生在阅读过程中的注视停顿之间。他还观察到构成视动和前庭眼球震颤快速期的运动具有相似的特征。大多数实验者发现,在没有移动的视觉刺激的情况下,所有的自主动作都是跳跃性的,甚至是对移动的视觉刺激做出反应的“追求”动作模式,也可以被证明包含跳跃性成分。跳眼运动在正常人中广泛存在,而且在非常年幼的婴儿和具有良好眼动的低等动物中也能观察到,这表明它们构成了眼动系统的基本反应模式。跳眼运动特征的眼位变化机制
DODGE, who was the first systematically to study and classify the various types of eye movements, attached the name "saccadic movement" to the rapid changes in position of the eyeball which are typically found between fixational pauses during reading. He also observed that the movements constituting the fast phase of opticokinetic and vestibular nystagmus have similar characteristics. Most experimenters have found that all voluntary movements executed in the absence of a moving visual stimulus are saccadic, and even "pursuit" movement patterns, in response to moving visual stimuli, can be demonstrated to contain saccadic components. This widespread occurrence of saccadic movements in the normal human and the fact that they can be observed in very young infants and in lower species with good ocular motility suggest that they constitute a basic response pattern in the oculomotor system. The mechanism by which the changes in eye position characteristic of saccadic movements are