Dissociated brain organization for single-digit addition and multiplication

This study compared the patterns of brain activation elicited by single-digit addition and multiplication problems. 20 Chinese undergraduates were asked to verify whether arithmetic equations were true or false during functional magnetic resonance imaging. Results showed that both addition and multi...

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Bibliographic Details
Published in:NeuroImage (Orlando, Fla.) Fla.), 2007-04, Vol.35 (2), p.871-880
Main Authors: Zhou, Xinlin, Chen, Chuansheng, Zang, Yufeng, Dong, Qi, Chen, Chunhui, Qiao, Sibing, Gong, Qiyong
Format: Article
Language:English
Subjects:
Addition
Adolescent
Adult
Arithmetic facts
Brain
Brain - physiology
Cognitive arithmetic
Female
fMRI
Humans
Hypotheses
Male
Mathematics
Mental Processes - physiology
Multiplication
Multiplication & division
Studies
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Summary:This study compared the patterns of brain activation elicited by single-digit addition and multiplication problems. 20 Chinese undergraduates were asked to verify whether arithmetic equations were true or false during functional magnetic resonance imaging. Results showed that both addition and multiplication were supported by a broad neural system that involved regions within SMA, precentral gyrus, intraparietal sulcus, occipital gyri, superior temporal gyrus, and middle frontal gyrus, as well as some subcortical structures. Nevertheless, addition problems elicited more activation in the intraparietal sulcus and middle occipital gyri at the right hemisphere, and superior occipital gyri at both hemispheres, whereas multiplication had more activation in precentral gyrus, supplementary motor areas, and posterior and anterior superior temporal gyrus at the left hemisphere. This pattern of dissociated activation supports our hypothesis that addition has greater reliance on visuospatial processing and multiplication on verbal processing.
ISSN:1053-8119
1095-9572
DOI:10.1016/j.neuroimage.2006.12.017