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Computerized Rotational Head Impulse Test-Vertical (crHIT-vertical)

2019-09-18 03:27:54 | BioPortfolio

Summary

The purpose of this research study is to test whether a Computerized Rotational Head Impulse Test-Vertical (crHIT-vertical) is able to reliably evaluate the vertical semicircular canals in patients with vestibular dysfunctions.

Study Design

Conditions

Vestibular Function Tests

Intervention

Computerized Rotational Head Impulse Test ( crHIT)-Vertical

Location

University of Miami
Miami
Florida
United States
33136

Status

Active, not recruiting

Source

Neuro Kinetics

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-09-18T03:27:54-0400

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Medical and Biotech [MESH] Definitions

Identification of SACCADES during a rapid head rotation to assess VESTIBULOOCULAR REFLEX.

The vestibular part of the 8th cranial nerve (VESTIBULOCOCHLEAR NERVE). The vestibular nerve fibers arise from neurons of Scarpa's ganglion and project peripherally to vestibular hair cells and centrally to the VESTIBULAR NUCLEI of the BRAIN STEM. These fibers mediate the sense of balance and head position.

Sensory cells in the acoustic maculae with their apical stereocilia embedded in a gelatinous OTOLITHIC MEMBRANE. These hair cells are stimulated by the movement of otolithic membrane, and impulses are transmitted via the VESTIBULAR NERVE to the BRAIN STEM. Hair cells in the saccule and those in the utricle sense linear acceleration in vertical and horizontal directions, respectively.

The 8th cranial nerve. The vestibulocochlear nerve has a cochlear part (COCHLEAR NERVE) which is concerned with hearing and a vestibular part (VESTIBULAR NERVE) which mediates the sense of balance and head position. The fibers of the cochlear nerve originate from neurons of the SPIRAL GANGLION and project to the cochlear nuclei (COCHLEAR NUCLEUS). The fibers of the vestibular nerve arise from neurons of Scarpa's ganglion and project to the VESTIBULAR NUCLEI.

The sensory areas on the vertical wall of the saccule and in the floor of the utricle. The hair cells in the maculae are innervated by fibers of the VESTIBULAR NERVE.

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