The vestibular system: a multimodal sense
Thursday, January 20, 2022
16:00 UTC
Elisa Raffaella Ferre
Birkbeck, University of London
Recording
Open recording
Hosted by Multisensory Perception and Plasticity70 minutes
Abstract
The vestibular system plays an essential role in everyday life, contributing to a surprising range of functions from reflexes to the highest levels of perception and consciousness. Three orthogonal semicircular canals detect rotational movements of the head and the otolith organs sense translational acceleration, including the gravitational vertical. But, how vestibular signals are encoded by the human brain? We have recently combined innovative methods for eliciting virtual rotation and translation sensations with fMRI to identify brain areas representing vestibular signals. We have identified a bilateral inferior parietal, ventral premotor/anterior insula and prefrontal network and confirmed that these areas reliably possess information about the rotation and translation. We have also investigated how vestibular signals are integrated with other sensory cues to generate our perception of the external environment.
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