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. Author manuscript; available in PMC: 2014 Aug 18.
Published in final edited form as: Neuropsychologia. 2013 Jul 26;51(11):2305–2317. doi: 10.1016/j.neuropsychologia.2013.06.031

Fig. 5.

Fig. 5

Relation between activity during arithmetic problem solving and visuo-spatial working memory abilities in a priori IPS and SFS ROIs. We used ROIs from an independent neuro-developmental study of visual spatial working memory (VSWM) in adults and children (Klingberg et al., 2002) to further examine the relationship between working memory and arithmetic problem solving. In that study, left IPS and left superior frontal sulcus (SFS) activity was positively correlated with behavioral measures of VSWM ability. Accordingly, we defined ROIs centered in the left IPS (MNI coordinates: −26 −60 60) and SFS (MNI coordinates: −24 −4 52). As with results from whole brain analysis, the correlations were positive and significant in the IPS (*p< .05) and marginally significant in the SFS (p=.062) in the typically develping (TD) group, and nonsignificant in the mathematical disabilities (MD) group.