| Autor: |
Unterrainer JM; Neuropsychology, Department of Psychology, University of Freiburg, Germany. josef.unterrainer@psychologie.uni-freiburg.de, Rahm B, Kaller CP, Ruff CC, Spreer J, Krause BJ, Schwarzwald R, Hautzel H, Halsband U |
| Jazyk: |
angličtina |
| Zdroj: |
Cerebral cortex (New York, N.Y. : 1991) [Cereb Cortex] 2004 Dec; Vol. 14 (12), pp. 1390-7. Date of Electronic Publication: 2004 Jun 24. |
| DOI: |
10.1093/cercor/bhh100 |
| Abstrakt: |
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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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