Assessing Horizontal Vestibular-Ocular Reflex

The horizontal vestibular ocular reflex was assessed using the video head impulse test.^{8 (link)} The video head impulse test was performed in the plane of the right and left horizontal semicircular canals using the EyeSeeCam system (Interacoustics, Eden Prairie, MN, USA), and testing methods have been previously published.^{8 (link)} Individuals were judged able to complete testing if they could follow the instructions to calibrate the EyeSeeCam (i.e. follow the calibration laser point for video head impulse test to calibrate eye movements).

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Harun A., Oh E.S., Bigelow R, & Agrawal Y. (2016). Vestibular function testing in individuals with cognitive impairment: our experience with sixty participants. Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery, 42(3), 772-776.

Publication 2016

EyeSeeCam system EyeSeeCam

Eye movements Head impulse test Ocular Semicircular canals Vestibular reflex

Corresponding Organization : Johns Hopkins University

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Variable analysis

independent variables

Head impulse in the plane of the right and left horizontal semicircular canals

dependent variables

Horizontal vestibular ocular reflex

control variables

Ability to follow the instructions to calibrate the EyeSeeCam (i.e. follow the calibration laser point for video head impulse test to calibrate eye movements)

controls

Positive control: Individuals were able to complete testing by following the instructions to calibrate the EyeSeeCam.
Negative control: Not specified.

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