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Cited by 330

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Localization of Executive Functions in Dual-Task Performance with fMRI

Open access
Szameitat, André J., Schubert, Torsten, Müller, Karsten, von Cramon, D. Yves·2002·Journal of Cognitive Neuroscience

Abstract

We report a study that investigated the neuroanatomical correlates of executive functions in dual-task performance with functional magnetic resonance imaging. Participants performed an auditory and a visual three-choice reaction task either separately as single tasks or concurrently as dual tasks. In the dual-task condition, two stimuli were presented in rapid succession to ensure interference between the component tasks (psychological refractory period). The behavioral data showed considerable performance decrements in the dual-task compared to the single-task condition. Dual-task-related activation was detected with two different neuroimaging methods. First, we determined dual-task-related activation according to the method of cognitive subtraction. For that purpose, activation in the dual-task was compared directly with activation in the single-task conditions. This analysis revealed that cortical areas along the inferior frontal sulcus (IFS), the middle frontal gyrus (MFG), and the intraparietal sulcus (IPS) are involved in dual-task performance. The results of the subtraction method were validated with the method of parametric manipulation. For this purpose, a second dual-task condition was introduced, where the difficulty of the dual-task coordination was increased compared with the first dual-task condition. As expected, behavioral dual-task performance decreased with increased dual-task difficulty. Furthermore, the increased dual-task difficulty led to an increase of activation in those cortical regions that proved to be dual-task related with the subtraction method, that is, the IFS, the MFG, and the IPS. These results support the conclusion that dorsolateral prefrontal and superior parietal cortices are involved in the coordination of concurrent and interfering task processing.

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Metadata

Authors
Szameitat, A. J., Schubert, T., Müller, K., & von Cramon, D. Y.
Venue
Journal of Cognitive Neuroscience
Published
2002-11
Volume
14
Issue
8
Pages
1184-1199
ISSN
  • 0898-929X (ISSN-L)
  • 1530-8898
OpenAlex
W2099724037
Cited by
330
References
12
FWCI
5.97
Type
journal article
Language
en
Open access
bronze

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