講題：Multi-scale neuroimaging on language tone processing
摘要：Language tone is a suprasegmental speech unit and functionally serves word meaning distinction. Understanding how tone processing proceeds in the brain is important because it can help resolve a paradox between linguistic pitch processing (i.e., tone) and non-linguistic pitch in the brain and link to research about how the brain develops to acquire a language. In this study, by taking advantage of the high spatiotemporal resolution of intracranial EEG data, i.e., the stereo-EEG (SEEG), and fMRI, we were allowed to profile the neural mechanism of language tone processing with high precision. Specifically, we expect that linguistic (tone) knowledge would modulate brain activation of the frontal and temporal language areas, i.e., earlier and larger activation for linguistic pitch (language tone judgment) than for non-linguistic pitch processing (voice gender discrimination).