Task-Specific Effects of tDCS-Induced Cortical Excitability Changes on Cognitive and Motor Sequence Set Shifting Performance

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Details zur Publikation

Autorenliste: Leite J, Carvalho S, Fregni F, Goncalves OF
Verlag: Public Library of Science
Jahr der Veröffentlichung: 2011
Zeitschrift: PLoS ONE (1932-6203)
Bandnummer: 6
Heftnummer: 9
Erste Seite: e24140
Seitenumfang: 9
ISSN: 1932-6203
eISSN: 1932-6203
Sprachen: Englisch-Vereinigtes Königreich (EN-GB)


Beschreibung

In this study, we tested the effects of transcranial Direct Current Stimulation (tDCS) on two set shifting tasks. Set shifting ability is defined as the capacity to switch between mental sets or actions and requires the activation of a distributed neural network. Thirty healthy subjects (fifteen per site) received anodal, cathodal and sham stimulation of the dorsolateral prefrontal cortex (DLPFC) or the primary motor cortex (M1). We measured set shifting in both cognitive and motor tasks. The results show that both anodal and cathodal single session tDCS can modulate cognitive and motor tasks. However, an interaction was found between task and type of stimulation as anodal tDCS of DLPFC and M1 was found to increase performance in the cognitive task, while cathodal tDCS of DLPFC and M1 had the opposite effect on the motor task. Additionally, tDCS effects seem to be most evident on the speed of changing sets, rather than on reducing the number of errors or increasing the efficacy of irrelevant set filtering.


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Zuletzt aktualisiert 2019-23-08 um 11:15