VOR Gain Is Related to Compensatory Saccades in Healthy Older Adults.

ABSTRACT:

Objective

Vestibulo-ocular reflex (VOR) gain is well-suited for identifying rotational vestibular dysfunction, but may miss partial progressive decline in age-related vestibular function. Since compensatory saccades might provide an alternative method for identifying subtle vestibular decline, we describe the relationship between VOR gain and compensatory saccades in healthy older adults.

Methods

Horizontal VOR gain was measured in 243 subjects age 60 and older from the Baltimore Longitudinal Study of Aging using video head impulse testing (HIT). Saccades in each HIT were identified as either "compensatory" or "compensatory back-up," i.e., same or opposite direction as the VOR response respectively. Saccades were also classified as "covert" (occurring during head movement) a

SUBMITTER: Anson ER 

PROVIDER: S-EPMC4919329 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature