Abstract:
:While there is consistent evidence from neuropsychological and brain imaging studies for an association between the left angular gyrus and mental arithmetic, its specific role in calculation has remained poorly understood. It has been speculated that the angular gyrus mediates the retrieval of arithmetic facts during problem solving, but this hypothesis has not been directly tested. In the present functional Magnetic Resonance Imaging study comprising 28 adults, we used trial-by-trial strategy self-reports to identify brain regions underpinning different strategies in arithmetic problem solving. Analyses revealed stronger activation of the left angular gyrus while solving arithmetic problems for which participants reported fact retrieval whereas the application of procedural strategies was accompanied by widespread activation in a fronto-parietal network. These data directly link the left angular gyrus with arithmetic fact retrieval and show that strategy self-reports can be used to predict differential patterns of brain activation.
journal_name
Neuropsychologiajournal_title
Neuropsychologiaauthors
Grabner RH,Ansari D,Koschutnig K,Reishofer G,Ebner F,Neuper Cdoi
10.1016/j.neuropsychologia.2008.10.013subject
Has Abstractpub_date
2009-01-01 00:00:00pages
604-8issue
2eissn
0028-3932issn
1873-3514pii
S0028-3932(08)00415-6journal_volume
47pub_type
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