上颈段脊髓背柱横断对视觉引导的前肢运动的影响。
Effects of dorsal column transection in the upper cervical segments on visually guided forelimb movements.
作者信息
Alstermark B, Górska T, Johannisson T, Lundberg A
出版信息
Neurosci Res. 1986 Jul;3(5):462-6. doi: 10.1016/0168-0102(86)90039-8.
PMID:3748476
Abstract
Complete transection of the dorsal column in C2 in cat gave severe defects in forelimb target-reaching and food-taking tested with retrieval of food from a cylinder. Among the symptoms were marked dysmetria in all directions and dyscoordination of movements in different joints, with only slow recovery over weeks and months. It is postulated that normal visual guidance of forelimb movements to a stationary target depends on somatosensory information to the brain via the dorsal column.
摘要
对猫的C2水平背柱进行完全横断后，在从圆筒中取回食物的测试中，前肢目标抓取和取食出现严重缺陷。症状包括各个方向明显的辨距不良以及不同关节运动的不协调，数周和数月内恢复缓慢。据推测，前肢向静止目标运动的正常视觉引导依赖于通过背柱向大脑传递的躯体感觉信息。
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