作者
Michael M Merzenich, JH Kaas, J Wall, RJ Nelson, M Sur, D Felleman
发表日期
1983/1/1
期刊
Neuroscience
卷号
8
期号
1
页码范围
33-55
出版商
Pergamon
简介
Two to nine months after the median nerve was transected and ligated in adult owl and squirrel monkeys, the cortical sectors representing it within skin surface representations in Areas 3b and 1 were completely occupied by ‘new’ and expanded representations of surrounding skin fields. Some occupying representations were ‘new’ in the sense that
- (1)there was no evidence that these skin surfaces were represented in this region prior to median nerve transection; and
- (2)these skin surfaces retained their normal representation elsewhere within these two cortical representations of hand surfaces. Large ‘new’ representations of the dorsal surfaces of digits 1 and 2 (innervated by the radial nerve) and large ‘new’ representations of the hypothenar eminence (innervated by the ulnar nerve) were consistently recorded.
Some surrounding skin surface representations expanded into the former median nerve zone, so that …
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