SHORT-TERM EXPANSION OF RECEPTIVE-FIELDS IN RAT PRIMARY SOMATOSENSORY CORTEX AFTER HINDPAW DIGIT DENERVATION

被引：62

作者：

BYRNE, JA

CALFORD, MB ^{[1
]}

机构：

[1] UNIV QUEENSLAND,VIS TOUCH & HEARING RES CTR,ST LUCIA,QLD 4067,AUSTRALIA

[2] UNIV QUEENSLAND,DEPT PHYSIOL & PHARMACOL,ST LUCIA,QLD 4067,AUSTRALIA

来源：

BRAIN RESEARCH | 1991年 / 565卷 / 02期

关键词：

PLASTICITY; SOMATOSENSORY CORTEX; AMPUTATION; LOCAL ANESTHESIA;

D O I：

10.1016/0006-8993(91)91652-H

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The immediate effect of changing the driving cutaneous input to locations within primary somatosensory cortex (SI) was examined by denervating one or more digits of the rat hindpaw by amputation or local anesthesia. When all or part of a receptive field of a cluster of neurons was denervated, it was found that the cortical location recorded from gained responsiveness to cutaneous stimulation of hindpaw areas bordering the denervated region. In 22 of the 29 animals studied this expansion took place within 5 min of the denervation.

引用

页码：218 / 224

页数：7

共 35 条

[1] PICROTOXIN ACTION ON THE RECEPTIVE-FIELDS OF THE CAT SENSORIMOTOR CORTEX NEURONS [J].