REORGANIZATION OF RETINOTOPIC CORTICAL MAPS IN ADULT MAMMALS AFTER LESIONS OF THE RETINA

被引:518
作者
KAAS, JH
KRUBITZER, LA
CHINO, YM
LANGSTON, AL
POLLEY, EH
BLAIR, N
机构
[1] UNIV HOUSTON, COLL OPTOMETRY, HOUSTON, TX 77204 USA
[2] UNIV ILLINOIS, MED CTR, DEPT ANAT, CHICAGO, IL 60680 USA
[3] UNIV ILLINOIS, MED CTR, DEPT OPHTHALMOL, CHICAGO, IL 60680 USA
关键词
D O I
10.1126/science.2326637
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The organization of the visual cortex has been considered to be highly stable in adult mammals. However, 5° to 10° lesions of the retina in the contralateral eye markedly altered the systematic representations of the retina in primary and secondary visual cortex when matched inputs from the ipsilateral eye were also removed. Cortical neurons that normally have receptive fields in the lesioned region of the retina acquired new receptive fields in portions of the retina surrounding the lesions. The capacity for such changes may be important for normal adjustments of sensory systems to environmental contingencies and for recoveries from brain damage.
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页码:229 / 231
页数:3
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