Functional MR techniques reveal the brain at work.
Carswell
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D001783:Blood Flow Velocity / Q000502:physiology; D001931:Brain Mapping / Q000379:methods; D006801:Humans; D007092:Imagination / Q000502:physiology; D008279:Magnetic Resonance Imaging / Q000266:history / Q000379:methods*; D009044:Motor Cortex / Q000033:anatomy & histology* / Q000502:physiology; D014055:Tomography, Emission-Computed