You can count on the motor cortex: Finger counting habits modulate motor cortex activation evoked by numbers

被引:122
作者
Tschentscher, Nadja [1 ]
Hauk, Olaf [1 ]
Fischer, Martin H. [2 ,3 ]
Pulvermueller, Friedemann [1 ]
机构
[1] MRC, Cognit & Brain Sci Unit, Cambridge CB2 7EF, England
[2] Univ Potsdam, Dept Psychol, D-14476 Potsdam Ot Golm, Germany
[3] Univ Dundee, Sch Psychol, Dundee DD1 4HN, Scotland
基金
英国医学研究理事会;
关键词
Embodied cognition; Numerical cognaion; Finger counting habits; SNARC effect; NUMERAL CONFIGURATIONS; MENTAL CALCULATION; PREMOTOR CORTEX; EYE-MOVEMENTS; LANGUAGE; BRAIN; WORDS; HAND; COMPREHENSION; PERCEPTION;
D O I
10.1016/j.neuroimage.2011.11.037
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The embodied cognition framework suggests that neural systems for perception and action are engaged during higher cognitive processes. In an event-related fMRI study, we tested this claim for the abstract domain of numerical symbol processing: is the human cortical motor system part of the representation of numbers, and is organization of numerical knowledge influenced by individual finger counting habits? Developmental studies suggest a link between numerals and finger counting habits due to the acquisition of numerical skills through finger counting in childhood. In the present study, digits 1 to 9 and the corresponding number words were presented visually to adults with different finger counting habits, i.e. left- and right-starters who reported that they usually start counting small numbers with their left and right hand, respectively. Despite the absence of overt hand movements, the hemisphere contralateral to the hand used for counting small numbers was activated when small numbers were presented. The correspondence between finger counting habits and hemispheric motor activation is consistent with an intrinsic functional link between finger counting and number processing. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码:3139 / 3148
页数:10
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