Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/13428

TitleTask-specific effects of tDCS-induced cortical excitability changes on cognitive and motor sequence set shifting performance
Author(s)Leite, Jorge
Carvalho, Sandra
Fregni, Felipe
Gonçalves, Óscar F.
Issue date2011
PublisherPLOS
JournalPLoS ONE
Abstract(s)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.
TypeArticle
URIhttp://hdl.handle.net/1822/13428
DOI10.1371/journal.pone.0024140
ISSN1932-6203
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CIPsi - Artigos (Papers)

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