Transcranial direct current stimulation improves naming reaction time in fluent aphasia: a double-blind, sham-controlled study.

ABSTRACT:

Background and purpose

Previous evidence suggests that anodal transcranial direct current stimulation (A-tDCS) applied to the left hemisphere can improve aphasic participants' ability to name common objects. The current study further examined this issue in a more tightly controlled experiment in participants with fluent aphasia.

Methods

We examined the effect of A-tDCS on reaction time during overt picture naming in 8 chronic stroke participants. Anode electrode placement targeted perilesional brain regions that showed the greatest activation on a pretreatment functional MRI scan administered during overt picture naming with the reference cathode electrode placed on the contralateral forehead. A-tDCS (1 mA; 20-minute) was compared with sham tDCS (S-tDCS) in a crossover desig

SUBMITTER: Fridriksson J 

PROVIDER: S-EPMC8210639 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature