Magnetoencephalographic localization of the basal temporal language area

Autor: Brien J. Smith, John E. Moran, Gregory L. Barkley, Toya Fleming, Karen M. Mason, Norman Tepley, Margaret L. Greenwald, Susan M. Bowyer, B. J. Weiland
Rok vydání: 2005
Předmět:
Zdroj: Epilepsy & Behavior. 6:229-234
ISSN: 1525-5050
DOI: 10.1016/j.yebeh.2004.12.003
Popis: Magnetoencephalography (MEG) recordings were made on 25 native English-speaking patients with localization-related epilepsy during a semantic language task (verb generation). Eighteen right-handed subjects with normal reading ability had MEG scans performed during the same language task. MEG data was analyzed by MR-FOCUSS, a current density imaging technique. Detectable MEG signals arising from activation in the left fusiform gyrus, also known as the basal temporal language area (BTLA), occurred at 167 +/- 18 ms (n = 43) in all subjects. The BTLA has been associated with a variety of language production and comprehension tasks involving processing of semantic, orthographic, and phonologic information. MEG may become an important tool in efforts to further define the linguistic operations of specific regions within this language area.
Databáze: OpenAIRE