Characteristics of visual fixation in motion sensitivity

Not Applicable

Completed

• Conditions: Motion Sensitivity after vestibular disorder; Physical Medicine / Rehabilitation - Physiotherapy; Neurological - Other neurological disorders; Ear - Other ear disorders

• Registration Number: ACTRN12619000254190
• Lead Sponsor: Auckland University of Technology

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2019-02-20
• Study Completion: 2020-02-25
• Last Update Posted: 24 May 2021

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

1. Healthy adults
Participants will be included in the healthy control group if they are aged between 18-60 years with independent level of mobility. However, people having reading glasses will be included in the study, as the design of the study require focusing on a letter at a distance. Also, the size of the letter has been chosen after piloting initial work with fellow research team members.
2. Motion sensitivity after vestibular disorder
•18-60 years of age (Agrawal, Carey et al. 2009, Bisdorff, Bosser et al. 2013)
•History of Vestibular disorder
•No signs of deficits of vestibular system
•History of motion sensitivity symptoms as reported by situational characteristics questionnaire (score >5) (Dannenbaum, Chilingaryan et al. 2011, Sharon and Hullar 2014, Silva, Ferreira et al. 2016)
•Level of dizziness as recorded by Dizziness Handicap Inventory. (Score >40)(Silva, Ferreira et al. 2016)

Exclusion Criteria

- History neurological conditions that could interfere with eye movements.
- History of any previous eye surgery
- Medical condition which may influence the eye movements results such as sarcoidosis, Lyme disease, diabetes mellitus.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Frequency and duration of fixations in each task ;measured with eye tracker[During each task ];Centre of Pressure in each task ; measured with force plate[During each task];Frequency of saccades in each task ; measured with eye tracker[During each task]

Secondary Outcome Measures

Name	Time	Method
Saccadic amplitude; measured with eye tracker<br>[During each task ];Head Kinematics; measured with Qualysis software using visual 3D[During each task ];Saccadic average velocity; measured with eye tracker[During each task];Saccadic peak velocity; measured using eye tracker[During each task]