FMRI OF HUMAN BRAIN LANGUAGE SYSTEMS

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This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The theme of this project is to study the functional and anatomical organization of language systems in the human brain using functional magnetic resonance imaging. We hypothesize that specific regions within the temporal lobe are involved in processing pathways linking auditory spectrotemporal signals to semantics and orthographic input to semantics, and that these processing streams partially overlap, permitting auditory-visual integration at a linguistic level of representation. The experiments will involve measurement of relative brain activation changes during manipulation of auditory input, graphemic and visual object input, selective attentional demands, and task instructions.