We report a patient showing isolated phonological agraphia after an ischemic stroke involving the left supramarginal gyrus (SMG). In this patient, we investigated the effects of focal repetitive transcranial magnetic stimulation (rTMS) given as theta burst stimulation (TBS) over the left SMG, corresponding o the Brodmann area (BA) 40. The patient and ten control subjects performed a dictational words and nonwords writing task before, and 5 and 30 min after they received excitatory intermittent TBS (iTBS) over the left BA 40, the right hemisphere homologous to BA 40, the Wernicke’s area, or the primary visual cortex. ITBS over the left SMG lead to a brief facilitation of phonological non-words writing to dictation. This case study report illustrates that rTMS is able to influence, among other language functions, the phonological loading processes during the written language production in stroke patients.

Transient beneficial effects of theta burst stimulation in a patient with phonological agraphia after left supramarginal gyrus infarction

DE BLASI, Pierpaolo;
2012

Abstract

We report a patient showing isolated phonological agraphia after an ischemic stroke involving the left supramarginal gyrus (SMG). In this patient, we investigated the effects of focal repetitive transcranial magnetic stimulation (rTMS) given as theta burst stimulation (TBS) over the left SMG, corresponding o the Brodmann area (BA) 40. The patient and ten control subjects performed a dictational words and nonwords writing task before, and 5 and 30 min after they received excitatory intermittent TBS (iTBS) over the left BA 40, the right hemisphere homologous to BA 40, the Wernicke’s area, or the primary visual cortex. ITBS over the left SMG lead to a brief facilitation of phonological non-words writing to dictation. This case study report illustrates that rTMS is able to influence, among other language functions, the phonological loading processes during the written language production in stroke patients.
BRAIN AND LANGUAGE
120
3
422
426
http://www.sciencedirect.com/science/article/pii/S0093934X1200003X
Phonological agraphia; Stroke; Supramarginal gyrus; Transcranial magnetic stimulation; Theta burst stimulation
Nardone Raffaele; De Blasi Pierpaolo; Zuccoli Giulio; Tezzon Frediano; Golaszewski Stefan; Trinka Eugen
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/115949
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