Sequential Neural Processes in Abacus Mental Addition: An EEG and fMRI Case Study

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These results indicate that neural processes for mental calculation of the expert are not as same as those of ordinary subjects. As suggested by many behavioral and neuroimaging studies on abacus mental calculation, a visuospatial imagery strategy might be taken by experts [2], [14], [15], [16], [17], [18], which was different from a phonological strategy in mental calculation used by ordinary people [5], [23].