![]() Often the vertigo first strikes you when you are in bed and not when you are standing. Carol Foster explains, “The semicircular canals are only capable of sensing turning motions, so the presence of particles moved by gravity causes tilting motions of the head to be incorrectly sensed as violent spinning” (1) or vertigo. (The semi-circular canals sense turning motions in each of three different planes.) When the “rocks” touch the tiny cilia in the semi-circular canals, they generate false balance signals. However, sometimes these “rocks” get jarred out of their normal location and “fall” into one of the three semi-circular canals. They normally reside in the utricle in the vestibular (balance) part of your inner ear. Instructions for Half Somersault for right-sided BPPV. Patient Instructions for Half Somersault for right-sided BPPV.
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