OVERGROWTH AND PRUNING OF DENDRITES IN ADULT-RATS RECOVERING FROM NEOCORTICAL DAMAGE

被引:275
作者
JONES, TA
SCHALLERT, T
机构
[1] UNIV TEXAS,DEPT PSYCHOL,AUSTIN,TX 78712
[2] UNIV TEXAS,INST NEUROSCI,AUSTIN,TX 78712
关键词
PLASTICITY; DENDRITIC BRANCHING; RECOVERY OF FUNCTION; MOTOR CORTEX; FORELIMB PREFERENCE; GOLGI-COX; PYRAMIDAL NEURON;
D O I
10.1016/0006-8993(92)90356-E
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Unilateral lesions to the forelimb representation (FL) area of the rat sensorimotor cortex caused a time-dependent increase in the dendritic arborization of layer V pyramidal neurons in the contralateral homotopic cortex. The increase in arborization was maximum at 2-3 weeks after the lesion, following which there was a partial reduction in dendritic branching. These neural morphological changes may be related to post-lesion behavioral changes in the use of the forelimbs.
引用
收藏
页码:156 / 160
页数:5
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