Binocular coordination of saccades: development, aging and cerebral substrate

Binocular coordination of saccades: development, aging and cerebral substrate
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眼跳的双眼协调:发育、衰老和脑基质

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发表时间:
2008
期刊:
影响因子:
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通讯作者:
M. Bucci
M. Bucci
中科院分区:
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文献类型:
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作者:
Z. Kapoula;M. Vernet;Qing Yang;M. Bucci

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双眼协调的扫视(中央,周边)和学习的作用的起源仍然存在争议(赫林与亥姆霍兹)。我们将提出学习的证据:在幼儿(5岁)水平扫视是不良的轭,协调提高缓慢,特别是在近观看距离的年龄。在有阅读障碍的青少年中,水平扫视的协调性相对于无阅读障碍的青少年较差,这表明学习较慢。另一方面,在健康的老年参与者(73岁)中,垂直扫视的协调是完整的,这是一个非老化子系统的例子。为了评估进一步的中枢机制,我们在目标发生后100 ms对健康成年人的后顶叶皮质应用TMS。经颅磁刺激损害协调,特别是对垂直和向下扫视。因此,双眼协调扫视部分依赖于大脑功能。
The origin of binocular coordination of saccades (central, peripheral) and the role of learning remain controversial (Hering vs Helmholtz). We will present evidence for learning: in young children (5 years) horizontal saccades are poorly yoked, coordination improves slowly with age particularly at near viewing distances. In dyslexic teenagers coordination of horizontal saccades is poor relative to non-dyslexics, suggesting slower learning. On the other hand, in healthy elderly participants (73 years) coordination of vertical saccades is intact, an example of a non ageing sub-system. To assess further central mechanisms, we applied TMS over the posterior parietal cortex of healthy adults, 100 ms after target onset. TMS impaired coordination particularly for rightward and downward saccades. Thus binocular coordination of saccades relies partially on cerebral function.experimental stages.
DOI: 10.1152/jn.1995.73.1.280
发表时间: 1995-01-01
影响因子: 2.5
作者:
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通讯作者: MAYS, LE
赫林定律的结构基础:眼外运动神经元的投影。
DOI: 10.1126/science.2343316
发表时间: 1990
期刊: Science (New York, N.Y.)
影响因子: --
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