Skip to main content
. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: Cochlear Implants Int. 2010 Sep;11(Suppl 2):2–11. doi: 10.1179/146701010X12726366068454

Figure 2.

Figure 2

(A) The Johns Hopkins Multichannel Vestibular Prosthesis (version MVP1) uses three silicon gyroscopes to measure 3D head rotation and a microprocessor to emulate normal semicircular canal sensation and processing. Scale bar units = cm. (B) Rotation of the device about each semicircular canal axis modulates pulse rates on the electrodes implanted in that canal’s ampulla.(C) Stimuli are biphasic, charge-balanced constant-current pulses similar to those used in cochlear implants. (Adapted with permission from Della Santina et al., 2007)