Improved picture naming in chronic aphasia after TMS to part of right Broca's area: an open-protocol study |
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Authors: | Naeser Margaret A Martin Paula I Nicholas Marjorie Baker Errol H Seekins Heidi Kobayashi Masahito Theoret Hugo Fregni Felipe Maria-Tormos Jose Kurland Jacquie Doron Karl W Pascual-Leone Alvaro |
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Institution: | Department of Neurology, Harold Goodglass Boston University Aphasia Research Center, Boston University School of Medicine and the Veterans Affairs Boston Healthcare System, Boston, MA 02130, USA. mnaeser@bu.edu |
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Abstract: | Functional imaging studies with nonfluent aphasia patients have observed "over-activation" in right (R) language homologues. This may represent a maladaptive strategy; suppression may result in language improvement. We applied slow, 1 Hz repetitive transcranial magnetic stimulation (rTMS) to an anterior portion of R Broca's homologue daily, for 10 days in four aphasia patients who were 5-11 years poststroke. Significant improvement was observed in picture naming at 2 months post-rTMS, with lasting benefit at 8 months in three patients. This preliminary, open trial suggests that rTMS may provide a novel treatment approach for aphasia by possibly modulating the distributed, bi-hemispheric language network. |
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