THE PERCEPTIONS OF FORCE AND OF MOVEMENT IN A MAN WITHOUT LARGE MYELINATED SENSORY AFFERENTS BELOW THE NECK

被引:143
作者
COLE, JD
SEDGWICK, EM
机构
[1] Wessex Neurological Centre, Southampton General Hospital
来源
JOURNAL OF PHYSIOLOGY-LONDON | 1992年 / 449卷
关键词
D O I
10.1113/jphysiol.1992.sp019099
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
1. Motor memory and the sense of effort have been investigated in a man with a complete large fibre sensory neuropathy for over 16 years. The perceptions of pain, heat, cold and muscular fatigue remained but he was without perceptions of light touch and proprioception below the neck. 2. The subject was able to discriminate weights held in the hand with an accuracy only slightly worse than control subjects (20 g in 200 g) when forearm movement and visual inspection were allowed. With eyes shut however he could only distinguish a weight of 200 g from 400 g. It is concluded that a crude sense of effort remains which may have a peripheral origin. 3. A limited motor memory was also present, which allowed him to maintain a posture or continue a simple repetitive movement. No novel movement was possible without visual feedback. 4. Differences in movement ability between this subject and others with similar if less pure sensory neuropathies are ascribed to rehabilitation.
引用
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页码:503 / 515
页数:13
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