%0 Journal Article
%T IMPLEMENTACI¨®N Y VALIDACI¨®N DE PROTOCOLO DE ESTIMULACI¨®N POR COMPRENSI¨®N DE LENGUAJE ORAL EN RESONANCIA MAGN¨¦TICA FUNCIONAL: RESULTADOS PRELIMINARES
%A Letelier A
%A Ignacio
%A Chabert
%A Steren
%A Vielma P
%A Juan
%J Revista chilena de radiolog¨ªa
%D 2010
%I Scientific Electronic Library Online
%R 10.4067/S0717-93082010000200005
%X this study aimed at implementing a stimulation protocol using functional magnetic resonance imaging (fmri), in a hospital in valparaiso (v region), chile, to detect cortical areas activated in oral language comprehension. seven healthy volunteers participated in this study. average t-score and signal variation were 6.3¡À0.3 and 0.5¡À0.1%, respectively. in spite of these low values, activations were obtained in wernicke area, middle temporal gyrus, and heschl s gyrus. the extension of activated areas was small, 5.06¡À2.99 cm3, probably due to amplifer low signal-to-noise ratio (snr), in addition to the cognitive complexity of the task, and to the ambient acoustic noise. successful implementation of fmri protocols of language comprehension is possible in a clinical context in chile without any additional resources.
%K functional magnetic resonance imaging
%K low signal-to-noise ratio
%K oral language comprehension.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0717-93082010000200005&lng=en&nrm=iso&tlng=en