Cognitive and metacognitive activity in mathematical problem solving: prefrontal and parietal patterns
Cognitive Affective & Behavioral Neuroscience (2011) - Comment
pubmed: 21264650  doi: 10.3758/s13415-010-0011-0  issn: 1531-135x  issn: 1530-7026 

John R. Anderson, Shawn Betts, Jennifer L. Ferris, Jon M. Fincham