THE CEREBRAL HEMISPHERES AND BILATERAL NEURAL NETS

被引:34
作者
COOK, ND [1 ]
BEECH, AR [1 ]
机构
[1] UNIV OXFORD,DEPT EXPTL PSYCHOL,OXFORD OX1 3UD,ENGLAND
关键词
Cerebral hemispheres; Corpus callosum; Hopfield nets; Inhibition; Laterality; Neural nets; Simulation;
D O I
10.3109/00207459009000522
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
A high-level cognitive dichotomy ("language and context" is reviewed in relation to empirical findings concerning the functions of the human cerebral hemispheres. We argue that the right hemisphere's involvement in the generation of connotative and contextual information in parallel with the denotative and literal language functions of the left hemisphere provides an important insight into the organization of viable cognitive systems. The role of the corpus callosum in producing the dichotomy is discussed. Finally, the generation of asymmetrical activity in structurally symmetrical, bilateral neural nets is described. The model demonstrates how complementary memory states can be generated in bilateral nets without assuming different modes of information processing, provided that the nets have inhibitory, homotopic connections. Unlike excitatory connections, inhibitory connections are sufficient to generate asymmetric hemispheric activity without postulating intrinsic differences between the cerebral hemispheres. © 1990 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
引用
收藏
页码:201 / 210
页数:10
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