Incremental Vestibulo-ocular Reflex Adaptation Training Dynamically Tailored for Each Individual.

Background And Purpose: Unilateral incremental vestibulo-ocular reflex (VOR) adaptation (IVA) increases the VOR gain (= eye/head velocity) for head rotations to one side by ∼10%. Prior IVA studies involved setting the initial VOR training gain demand at the subject's starting value (= 1 in a healthy subject), with the gain preset to increment by 0.1 every 90 seconds over 15 minutes, defined as Static IVA.

Motorized head impulse rotator for horizontal vestibulo-ocular reflex: Normal responses.

Objective: To characterize the horizontal angular vestibulo-ocular reflex using a new motorized head impulse rotator and electro-oculography technique.

Design: Prospective case-control study.

Participants: We included 22 healthy volunteers with unpredictable, horizontal motorized head impulses with a mean velocity of 170 degrees/s and a mean acceleration of 1550 degrees/s2.