@article{ref1,
title="Age-related changes in cognitive conflict processing: an event-related potential study",
journal="Neurobiology of aging",
year="2007",
author="Mager, Ralph and Bullinger, Alex H. and Brand, Serge and Schmidlin, Maria and Schärli, Heinz and Müller-Spahn, Franz and Störmer, Robert and Falkenstein, Michael",
volume="28",
number="12",
pages="1925-1935",
abstract="Cognitive tasks involving conflicting stimuli and responses are associated with an early age-related decline in performance. Conflict and conflict-induced interference can be stimulus- or response-related. In classical stimulus-response compatibility tasks, such as the Stroop task, the event-related potential (ERP) usually reveals a greater negativity on incongruent versus congruent trials which has often been linked with conflict processing. However, it is unclear whether this negativity is related to stimulus- or response-related conflict, thus rendering the meaning of age-related changes inconclusive. In the present study, a modified Stroop task was used to focus on stimulus-related interference processes while excluding response-related interference. Since we intended to study work-relevant effects ERPs and performance were determined in young (about 30 years old) and middle-aged (about 50 years old) healthy subjects (total n=80). In the ERP, a broad negativity developed after incongruent versus congruent stimuli between 350 and 650 ms. An age-related increase of the latency and amplitude of this negativity was observed. These results indicate age-related alterations in the processing of conflicting stimuli already in middle age.<p /><p>Language: en</p>",
language="en",
issn="0197-4580",
doi="10.1016/j.neurobiolaging.2006.08.001",
url="http://dx.doi.org/10.1016/j.neurobiolaging.2006.08.001"
}