This animation shows otolith movements expected in a left ear with combined horizontal and posterior canal BPPV when posterior canal exercises are performed. Much greater movement around the circumference of the posterior canal is induced than by conventional Brandt-Daroff exercises. Movement around the circumference of the horizontal canal is roughly equivalent in posterior canal exercises and Brandt-Daroff exercises. Contact of otoliths with the dark cell areas of the crista is promoted in both canals.