Functional optimization of arithmetic processing in perfect performers

被引:70
作者
Menon, V [1 ]
Rivera, SM
White, CD
Eliez, S
Glover, GH
Reiss, AL
机构
[1] Stanford Univ, Sch Med, Dept Psychiat, Stanford, CA 94305 USA
[2] Stanford Univ, Sch Med, Dept Behav Sci, Stanford, CA 94305 USA
[3] Stanford Univ, Sch Med, Dept Radiol, Stanford, CA 94305 USA
来源
COGNITIVE BRAIN RESEARCH | 2000年 / 9卷 / 03期
关键词
fMRI; arithmetic; parietal lobe; optimization; specialization; performance;
D O I
10.1016/S0926-6410(00)00010-0
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Lesion and imaging studies to date have not clarified which sub-regions of the parietal lobe are specialized for arithmetic processing, and which perform supporting functions. We used functional magnetic resonance imaging to investigate parietal lobe function during arithmetic processing. Functional optimization was examined by analyzing regional differences in brain activation between perfect (100% accuracy) and imperfect performers. Perfect performers had significantly less activation only in the left angular gyrus, a finding that may be associated with skill mastery and long-term practice effects. The present results provide the first direct evidence of localized functional optimization for arithmetic processing in the human brain. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:343 / 345
页数:3
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