Transcranial magnetic stimulation as a complementary treatment for aphasia
| Autor: | Jacquie Kurland, Alvaro Pascual-Leone, José María Tormos, Felipe Fregni, Paula I. Martin, Hugo Théoret, Margaret A. Naeser, Heidi Seekins, Marjorie Nicholas, Karl W. Doron |
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| Rok vydání: | 2004 |
| Předmět: |
medicine.medical_treatment
behavioral disciplines and activities Nonfluent aphasia Lateralization of brain function Speech and Hearing Mental Processes Cortex (anatomy) Aphasia medicine Reaction Time Humans Dominance Cerebral Stroke Language LPN and LVN medicine.disease Transcranial Magnetic Stimulation Electric Stimulation Frontal Lobe Transcranial magnetic stimulation Functional Brain Imaging medicine.anatomical_structure nervous system Pars triangularis medicine.symptom Psychology Neuroscience |
| Zdroj: | Seminars in speech and language. 25(2) |
| ISSN: | 0734-0478 |
| Popis: | Functional brain imaging with nonfluent aphasia patients has shown increased cortical activation (perhaps ‘‘overactivation’’) in right (R) hemisphere language homologues. These areas of overactivation may represent a maladaptive strategy that interferes with, rather than promotes, aphasia recovery. Repetitive transcranial magnetic stimulation (rTMS) is a painless, noninvasive procedure that utilizes magnetic fields to create electric currents in discrete brain areas affecting about a 1-cm square area of cortex. Slow frequency, 1 Hz rTMS reduces cortical excitability. When rTMS is applied to an appropriate cortical region, it may suppress the possible overactivation and thus modulate a distributed neural network for language. We provide information on rTMS and report preliminary results following rTMS application to R Broca’s area (posterior, R pars triangularis) in four stroke patients with nonfluent aphasia (5‐11 years after left hemisphere stroke). Following 10 rTMS treatments, significant improvement in naming pictures was observed. This form of rTMS may provide a novel, complementary treatment for aphasia. |
| Databáze: | OpenAIRE |
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