| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 924228 | Brain and Cognition | 2011 | 9 Pages |
Previous studies on performance monitoring repeatedly found attenuated error-related negativities (Ne/ERN) in elderly, while findings for the correct-related negativity (Nc/CRN) are inconsistent. The present study aimed at clarifying inconsistent Nc/CRN results in elderly. Therefore, a refined design was employed to control for potential influences on the Nc/CRN, namely decision uncertainty and partial error processing. Further, we intended to study Nc/CRN variations with trial compatibility that were found in previous studies for younger but not for older adults. Results revealed increased Nc/CRN and decreased Ne/ERN amplitudes in older compared to younger adults. While the Ne/ERN was larger than the Nc/CRN in younger adults, both components were similar-sized in older adults. Further, a modulation of Nc/CRN amplitudes between compatible and incompatible trials was observed in younger adults, but was absent in older adults. Reduced differentiation of response-related negativities with response accuracy or stimulus compatibility in elderly suggests a reduced adaptation of associated processes to changing demands. Further, this might also point to different processes reflected by Nc/CRN and Ne/ERN and to reduced error-specific monitoring but increased general or strategic monitoring in elderly.
Research highlights► Ne/ERN and Nc/CRN in younger and older adults. ► Reduced Ne/ERN and enhanced Nc/CRN were found in older compared to younger adults. ► Nc/CRN varied with trial compatibility in younger adults, but not in older adults. ► Elderly show reduced error-specific performance monitoring. ► Elderly show overactive general or strategic monitoring.
