Repetitive Transcranial Magnetic Stimulation of Dorsolateral Prefrontal Cortex Affects Performance of the Wisconsin Card Sorting Task during Provision of Feedback
Joint Authors
Strafella, Antonio P.
Ptito, Alain
Monchi, Oury
Petrides, Michael
Ko, Ji Hyun
Source
International Journal of Biomedical Imaging
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-02-27
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Early functional neuroimaging studies of tasks evaluating executive processes, such as the Wisconsin card sorting task (WCST), only assessed trials in blocks that may contain a large amount of different cognitive processes.
More recently, we showed using event-related fMRI that the dorsolateral prefrontal cortex (DL-PFC) significantly increased activity during feedback but not matching periods of the WCST, consistent with its proposed role in the monitoring of information in working memory.
Repetitive transcranial magnetic stimulation (rTMS) is a method that allows to disrupt processing within a given cortical region and to affect task performance for which this region is significantly solicited.
Here we applied rTMS to test the hypothesis that the DL-PFC stimulation influences monitoring of working memory without interfering with other executive functions.
We applied rTMS to the right DL-PFC and the vertex (control site) in different time points of the WCST.
When rTMS was applied to the DL-PFC specifically during the period when subjects were receiving feedback regarding their previous response, WCST performance deteriorated, while rTMS did not affect performance during matching either when maintaining set or during set-shifting.
This selective impairment of the DL-PFC is consistent with its proposed role in monitoring of events in working memory.
American Psychological Association (APA)
Ko, Ji Hyun& Monchi, Oury& Ptito, Alain& Petrides, Michael& Strafella, Antonio P.. 2008. Repetitive Transcranial Magnetic Stimulation of Dorsolateral Prefrontal Cortex Affects Performance of the Wisconsin Card Sorting Task during Provision of Feedback. International Journal of Biomedical Imaging،Vol. 2008, no. 2008, pp.1-7.
https://search.emarefa.net/detail/BIM-449194
Modern Language Association (MLA)
Ko, Ji Hyun…[et al.]. Repetitive Transcranial Magnetic Stimulation of Dorsolateral Prefrontal Cortex Affects Performance of the Wisconsin Card Sorting Task during Provision of Feedback. International Journal of Biomedical Imaging No. 2008 (2008), pp.1-7.
https://search.emarefa.net/detail/BIM-449194
American Medical Association (AMA)
Ko, Ji Hyun& Monchi, Oury& Ptito, Alain& Petrides, Michael& Strafella, Antonio P.. Repetitive Transcranial Magnetic Stimulation of Dorsolateral Prefrontal Cortex Affects Performance of the Wisconsin Card Sorting Task during Provision of Feedback. International Journal of Biomedical Imaging. 2008. Vol. 2008, no. 2008, pp.1-7.
https://search.emarefa.net/detail/BIM-449194
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-449194