tDCS and Aphasia Treatment

NCT ID: NCT01922245


Title
tDCS and Aphasia Treatment
Purpose
This project will investigate the use of noninvasive brain stimulation in the form of tDCS (transcranial direct current stimulation) in conjunction with speech-language therapy, for the improvement of language production in stroke survivors with aphasia. The hypothesis is that anodal tDCS and speech-language therapy will facilitate improved outcomes compared to speech therapy alone.
Details
Aphasia, commonly defined as impairment or loss of language functions, is a frequent and often chronic consequence of stroke, with detrimental effects on patient autonomy and health-related quality of life (HRQOL). Although beneficial in some cases, the effectiveness of behavioral therapy is often limited, and therefore new complementary treatments must be developed in order to improve rehabilitation of post-stroke aphasia. In most individuals, language areas in the brain are localized in the left hemisphere. After stroke, there is evidence that the brain reorganizes such that either areas close to damaged language areas in the Left Hemisphere, or anatomically similar areas in the Right Hemisphere, are recruited to perform language tasks. Recently, studies have begun to examine the effects of non-invasive brain stimulation on aphasia rehabilitation. One such technique is transcranial direct current stimulation (tDCS), which involves administering weak electrical currents through surface electrodes on the scalp. The effects can either stimulate an area, or inhibit an area of the brain. The main hypothesis is that stimulating language areas in the Left Hemisphere in conjunction with speech language therapy will facilitate reorganization of language-relevant areas of the brain, and improve expression. The proposed study will compare the effects of transcranial direct current stimulation (tDCS) activating language centers in the Left Hemisphere and sham tDCS, in right-handed individuals with chronic post-stroke aphasia. This study will provide information on the effects of tDCS, in conjunction with speech-language therapy, on aphasia rehabilitation.
Conditions
Aphasia
Keywords
aphasia, therapy, stroke, language, naming, quality of life, tDCS, treatment
Source
Hunter College
Sponsors
Hunter College
Status
Recruiting
Acronym
Last Updated
16 Aug 2015
URL
Official Link
Citations/Publications
Baker JM, Rorden C, Fridriksson J. Using transcranial direct-current stimulation to treat stroke patients with aphasia. Stroke. 2010 Jun;41(6):1229-36. doi: 10.1161/STROKEAHA.109.576785.

Fiori V, Cipollari S, Di Paola M, Razzano C, Caltagirone C, Marangolo P. tDCS stimulation segregates words in the brain: evidence from aphasia. Front Hum Neurosci. 2013 Jun 14;7:269. doi: 10.3389/fnhum.2013.00269.

Elsner B, Kugler J, Pohl M, Mehrholz J. Transcranial direct current stimulation (tDCS) for improving aphasia in patients after stroke. Cochrane Database Syst Rev. 2013 Jun 25;(6):CD009760. doi: 10.1002/14651858.CD009760.pub2. Review. Update in: Cochrane Database Syst Rev. 2015;(5):CD009760.

Locations
United States