Functional brain imaging of multi-sensory vestibular processing during computerized dynamic posturography using near-infrared spectroscopy

► Functional near-infrared spectroscopy (fNIRS) measures functional activation. ► fNIRS was used in subjects during computerized dynamic posturography. ► Degrading vision and proprioception caused bilateral temporo-parietal activation. ► Bilateral activation may be due to forced reliance on vestibular control. ► fNIRS can investigate the cortical role during vestibular and balance tasks.