CENTRAL ADAPTATION MODELS OF THE VESTIBULO-OCULAR AND OPTOKINETIC SYSTEMS
CENTRAL ADAPTATION MODELS OF THE VESTIBULO-OCULAR AND OPTOKINETIC SYSTEMS
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DOI：
10.1007/bf00203172
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发表时间：
1989-01-01
影响因子：
1.9
通讯作者：
PAIGE, GD
中科院分区：
文献类型：
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作者：
FURMAN, JMR;HAIN, TC;PAIGE, GD
对前庭-眼球和视动系统的两种模型进行了理论分析。每个模型在前庭外周都有一个滤器元件，以说明外周适应，并在中央前庭视动回路中包含一个滤器元件，以说明中枢适应。这两个模型都解释了外周前庭传入和前庭-眼反射(VOR)反应的适应，即对恒定角加速度输入的反应衰退，以及2视动性后眼震(Okan)和VOR的反转阶段，以及3振荡行为，如周期性交替性眼震。这两个模型在其VOR传递函数的阶数上不同。此外，他们还预测在长时间的视动刺激后会出现不同的奥肯模式。这些模型具有行为学意义，并建议进行未来的实验。
A theoretical analysis of two models of the vestibulo-ocular and optokinetic systems was performed. Each model contains a filter element in the vestibular periphery to account for peripheral adaptation, and a filter element in the central vestibulo-optokinetic circuit to account for central adaptation. Both models account for 1 adaptation, i.e. a response decay to a constant angular acceleration input, in both peripheral vestibular afferent and vestibulo-ocular reflex (VOR) responses and 2 the reversal phases of optokinetic after-nystagmus (OKAN) and the VOR and 3 oscillatory behavior such as periodic alternating nystagmus. The two models differ regarding the order of their VOR transfer function. Also, they predict different OKAN patterns following a prolonged optokinetic stimulus. These models have behavioral implications and suggest future experiments.