INVASION OF VISUAL-CORTEX BY THE AUDITORY-SYSTEM IN THE NATURALLY BLIND MOLE RAT

被引:83
作者
HEIL, P [1 ]
BRONCHTI, G [1 ]
WOLLBERG, Z [1 ]
SCHEICH, H [1 ]
机构
[1] TEL AVIV UNIV, DEPT ZOOL, IL-69978 TEL AVIV, ISRAEL
关键词
CROSS-MODAL COMPENSATION; MAMMALS; AUDITORY SYSTEM; VISUAL CORTEX;
D O I
10.1097/00001756-199112000-00001
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
PREVIOUSLY we have shown that the dorsal lateral geniculate body (LGB), which is strictly visual in sighted mammals, receives a strong auditory input in the naturally blind mole rat (Spalax ebrenbergi). Here we show with the 2-deoxyglucose technique and with single-unit recordings that in this species the initially non-degenerated visual cortex, as defined by its connection with LGB, is also activated by the auditory modality. These findings suggest that cross-modal compensation may occur as a natural consequence of the degeneration of a sense organ.
引用
收藏
页码:735 / 738
页数:4
相关论文
共 25 条
[1]  
BONAVENTURE N, 1968, COMPTES RENDUS SOC B, V163, P1705
[2]   AUDITORY PATHWAY AND AUDITORY ACTIVATION OF PRIMARY VISUAL TARGETS IN THE BLIND MOLE RAT (SPALAX-EHRENBERGI) .1. 2-DEOXYGLUCOSE STUDY OF SUBCORTICAL CENTERS [J].
BRONCHTI, G ;
HEIL, P ;
SCHEICH, H ;
WOLLBERG, Z .
JOURNAL OF COMPARATIVE NEUROLOGY, 1989, 284 (02) :253-274
[3]   RETINAL PROJECTIONS IN THE BLIND MOLE RAT - A WGA-HRP TRACING STUDY OF A NATURAL DEGENERATION [J].
BRONCHTI, G ;
RADO, R ;
TERKEL, J ;
WOLLBERG, Z .
DEVELOPMENTAL BRAIN RESEARCH, 1991, 58 (02) :159-170
[4]  
BRONCHTI G, 1991, EUR J NEUROSCI, V4, P1214
[5]  
FROST DO, 1990, ADV NEURAL BEHAVIORA
[6]  
GRIESBACH H, 1899, PFLUGERS ARCH, V74, P577
[7]   GROWTH ALTERATION IN AUDITORY CORTEX OF VISUALLY DEPRIVED MICE [J].
GYLLENSTEN, L ;
MALMFORS, T ;
NORRLIN, ML .
JOURNAL OF COMPARATIVE NEUROLOGY, 1966, 126 (03) :463-+
[8]   VIBRATIONAL COMMUNICATION IN SUBTERRANEAN MOLE RATS (SPALAX-EHRENBERGI) [J].
HETH, G ;
FRANKENBERG, E ;
RAZ, A ;
NEVO, E .
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY, 1987, 21 (01) :31-33
[9]   SONAR SYSTEM OF BLIND [J].
KELLOGG, WN .
SCIENCE, 1962, 137 (3528) :399-&
[10]  
Leder M.-L., 1975, Zoologische Jb (Anat), V94, P74