Related Experiment Video
Updated: May 23, 2026

The Immersive Cleveland Clinic Virtual Reality Shopping Platform for the Assessment of Instrumental Activities of Daily Living
Published on: July 28, 2022
A Device for the Functional Evaluation of the VOR in Clinical Settings
Stefano Ramat1, Silvia Colnaghi, Andreas Boehler
1Department of Computer and Systems Science, University of Pavia Pavia, Italy.
Abstract:
We developed the head impulse testing device (HITD) based on an inertial sensing system allowing to investigate the functional performance of the rotational vestibulo-ocular reflex (VOR) by testing its gaze stabilization ability, independently from the subject's visual acuity, in response to head impulses at different head angular accelerations ranging from 2000 to 7000 deg/s(2). HITD was initially tested on 22 normal subjects, and a method to compare the results from a single subject (patient) with those from controls was set up. As a pilot study, we tested the HITD in 39 dizzy patients suffering, non-acutely, from different kinds of vestibular disorders. The results obtained with the HITD were comparable with those from the clinical head impulse test (HIT), but an higher number of abnormalities was detectable by HITD in the central vestibular disorders group. The HITD appears to be a promising tool for detecting abnormal VOR performance while providing information on the functional performance of the rotational VOR, and can provide a valuable assistance to the clinical evaluation of patients with vestibular disorders.
Related Concept Videos
Mitral Stenosis II: Clinical features and Diagnostic Tests
Nursing Evaluation
Section...
In Vitro Drug Release Testing: Overview, Development and Validation
Mitral Regurgitation II: Clinical Features and Diagnostic Tests
Drug Product Performance: In Vitro–In Vivo Correlation
Assessment of Ventilation I: Respiratory Rate
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:

