Non-Symbolic Numerical Distance Effect in Children With and Without Developmental Dyscalculia: A Parametric fMRI Study

被引：51
|
作者：
Kucian, Karin [1 ,2 ]
Loenneker, Thomas [1 ]
Martin, Ernst [1 ,2 ,3 ]
von Aster, Michael [1 ,2 ,4 ]
机构：
[1] Univ Childrens Hosp, MR Res Ctr, Zurich, Switzerland
[2] Univ Childrens Hosp, Pediat Res Ctr, Zurich, Switzerland
[3] Univ Zurich, Ctr Integrat Human Physiol, Zurich, Switzerland
[4] German Red Cross Hosp Westend, Dept Child & Adolescent Psychiat, Berlin, Germany
来源：
DEVELOPMENTAL NEUROPSYCHOLOGY | 2011年 / 36卷 / 06期
关键词：
INTRAPARIETAL SULCUS; PARIETAL ACTIVATION; COGNITIVE FUNCTIONS; RESPONSE-SELECTION; NUMBER; MAGNITUDE; BRAIN; REPRESENTATIONS; MECHANISMS; CONFLICT;
D O I：
10.1080/87565641.2010.549867
中图分类号：
B844 [发展心理学（人类心理学）];
学科分类号：
040202 ;
摘要：
This study investigated areas of brain activation related to non-symbolic distance effects in children with and without developmental dyscalculia (DD). We examined 15 children with DD (11.3 years) and 15 controls (10.6 years) by means of functional magnetic resonance imaging (fMRI). Both groups displayed similar behavioral performance, but differences in brain activation were observed, particularly in the supplementary motor area and the right fusiform gyrus, where children with DD demonstrated stronger activation. These results suggest that dyscalculic children engage areas attributed to higher difficulty in response selection more than control children, possibly due to a deficient development of a spatial number representation in DD.
引用
收藏
页码：741 / 762
页数：22
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