Optical imaging of phonological processing in two distinct orthographies
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Recent fMRI studies comparing the processing of alphabetic versus logographic scripts provide evidence for shared and orthography-speciWc regions of neural activity. The present study used near-infrared spectroscopy to compare (within and across brain regions) the time course of neural activation for these two distinct orthographies. Native readers of English and of Chinese were tested on a homophone judgment task. DiVerences across groups were obtained in the time course of hemodynamic change for the left middle frontal, left superior temporal, and left supramarginal gyri. Results thus support previous Wndings using fMRI and suggest that diVerent neural mappings arise depending on whether an individual has learned to process written language using an alphabetic or logographic script.
SubjectNear infrared spectroscopy
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