Ageing differentially affects processing of different conflict types M Korsch1, S Frühholz2, M Herrmann1 |
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1Neuropsychology and Behavioral Neurobiology, University of Bremen, Germany |
| There is converging evidence that conflict processing of different conflict types relies on distinct neural mechanisms. However, it is still under debate how neural processing of different conflict types is affected by ageing. In this study, a combined Flanker and Simon task was performed by young and elderly participants during fMRI recording. With regard to behavioral performance, data analysis revealed larger Simon effects in elderly while Flanker task effects did not differ between both groups. fMRI data demonstrated distinct neural networks being involved in conflict processing. Flanker conflict processing was associated with additional recruitment of postcentral gyrus in older participants. In contrast, Simon conflict elicited activation of inferior frontal gyrus and inferior parietal lobule specific to elderly individuals. These findings indicate a differential effect on distinct conflict types in ageing. |
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