Unterrainer, J.M.; Rahm, B.; Kaller, C.P.; Ruff, C.C.; Spreer, J.; Krause, B.J.; Schwarzwald, R.; ... Halsband, U.; + view all Unterrainer, J.M.; Rahm, B.; Kaller, C.P.; Ruff, C.C.; Spreer, J.; Krause, B.J.; Schwarzwald, R.; Hautzel, H.; Halsband, U.; - view fewer (2004) When planning fails: Individual differences and error-related brain activity in problem solving. Cerebral Cortex , 14 (12) pp.1390 - 1397. 10.1093/cercor/bhh100.

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Abstract

The neuronal processes underlying correct and erroneous problem solving were studied in strong and weak problem-solvers using functional magnetic resonance imaging (fMRI). During planning, the right dorsolateral prefrontal cortex was activated, and showed a linear relationship with the participants' performance level. A similar pattern emerged in right inferior parietal regions for all trials, and in anterior cingulate cortex for erroneously solved trials only. In the performance phase, when the pre-planned moves had to be executed by means of an fMRI-compatible computer mouse, the right dorsolateral prefrontal cortex was again activated jointly with right parahippocampal cortex, and displayed a similar positive relationship with the participants' performance level. Incorrectly solved problems elicited stronger bilateral prefrontal and left inferior parietal activations than correctly solved trials. For both individual ability and trial-specific performance, our results thus demonstrate the crucial involvement of right prefrontal cortex in efficient visuospatial planning.

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