- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03182868
Vestibular Testing: Consistency and Effects Over Time
April 20, 2022 updated by: Michael E. Hoffer, University of Miami
The goal of this study is to test the consistency and repeatability of a portable goggle system for testing optokinetic, ocular, and reaction time.
The study examines the day to day consistency, time of day and learning effects as well as any secondary motion sickness.
Study Overview
Detailed Description
The goal of this study was to test the constancy and repeatability of this test by testing it in different individuals and different times of day, after a variety of tasks and after repeated performance
Study Type
Interventional
Enrollment (Actual)
78
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Florida
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Miami, Florida, United States, 33136
- University of Miami Miller School of Medicine
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 65 years (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Age 18 to 65
- Both Females and males
- Staff and students at all levels at the University of Miami or first-degree - relatives/significant others of those individuals.
Exclusion Criteria:
- History of vestibular disorder/dysfunction
- Central processing disorder
- Impaired vision without corrective lenses (max 20/60 uncorrected)
- Moderate to severe hearing loss [>55 decibel (dB) Pure Tone Average (PTA), <50% word identification]
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: DIAGNOSTIC
- Allocation: NON_RANDOMIZED
- Interventional Model: SEQUENTIAL
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Repeatability Group
Healthy participants perform goggle testing on two consecutive days to determine if the testing results are repeatable.
Testing will be between 10 am and 2 pm and testing on the two sessions will be within 30 minutes of the same time.
Sessions can be on two consecutive days or separated by up to 4 days.
|
PAS goggle is a self-contained stimulus and sensing device that is designed to deliver the visual stimuli currently delivered via light projected on a wall while simultaneously recording the movement of the eyes.
Each vestibular testing session last about 15 minutes.
|
EXPERIMENTAL: Time of Day Group
Healthy participants perform goggle testing at two different times of day to determine if time of day affects goggle testing performance.
One quarter of the participants in this arm will undergo one test at 8 am on the first session and 10 am on the second session.
A second quarter will undergo the tests at 10 am on first session and 8 am on the second session.
A third quarter will undergo one test at 3 pm on the first session and 10 am on the second session.
The fourth quarter will undergo the tests at 10 am on first session and 3 pm on the second session.
In all these cases the sessions can be on consecutive days or separated by up to 4 days.
|
PAS goggle is a self-contained stimulus and sensing device that is designed to deliver the visual stimuli currently delivered via light projected on a wall while simultaneously recording the movement of the eyes.
Each vestibular testing session last about 15 minutes.
|
EXPERIMENTAL: Learning Affect Group
Healthy participants perform goggle testing back to back on the same day to determine if performance on second test changes from first test suggesting a learning affect.
|
PAS goggle is a self-contained stimulus and sensing device that is designed to deliver the visual stimuli currently delivered via light projected on a wall while simultaneously recording the movement of the eyes.
Each vestibular testing session last about 15 minutes.
|
EXPERIMENTAL: MSQ Group
Healthy participants perform goggle testing and upon completion of each goggle testing session will complete a Motion Sickness Questionnaire (MSQ) to determine if they show any signs of motion sickness.
|
PAS goggle is a self-contained stimulus and sensing device that is designed to deliver the visual stimuli currently delivered via light projected on a wall while simultaneously recording the movement of the eyes.
Each vestibular testing session last about 15 minutes.
|
EXPERIMENTAL: OKN Only Group
OKN Only Group is for exploratory aims only.
Healthy participants will undergo goggle testing limited to Optokinetic Nystagmus (OKN) recordings at two stimulus speeds (20 and 60 deg/s) in both the counterclockwise and clockwise directions.
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PAS goggle is a self-contained stimulus and sensing device that is designed to deliver the visual stimuli currently delivered via light projected on a wall while simultaneously recording the movement of the eyes.
Each vestibular testing session last about 15 minutes.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Vestibular Reaction Times
Time Frame: 2 Days
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Repeatability, variation and learning effect of vestibular testing of PAS goggles will be evaluated using the test results on both sessions for the following sub-tests: a) Visual Reactive Time (VRT), b) Saccades and Reaction Time (SRT) Saccade Latency, c) SRT Motor Latency, and d) Auditory Reaction Time (ART).
ART, VRT and SRT subtests are all evaluated in msec.
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2 Days
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Vestibular Subjective Visual Vertical
Time Frame: 2 Days
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Repeatability, variation and learning effect of vestibular testing of PAS goggles will be evaluated using the test results on both sessions for the Subjective Visual Vertical sub-test assessed in degrees.
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2 Days
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Vestibular Smooth Pursuit Horizontal
Time Frame: 2 Days
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Repeatability, variation and learning effect of vestibular testing of PAS goggles will be evaluated using the test results on both sessions for the Smooth Pursuit Horizontal (SPH) sub-tests in degree squared per second.
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2 Days
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Vestibular Percentage of Saccade
Time Frame: 2 Days
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Repeatability, variation and learning effect of vestibular testing of PAS goggles will be evaluated using the test results on both sessions for the sub-tests Smooth Pursuit Horizontal (SPH) evaluated as percentage of saccades completed.
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2 Days
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Vestibular Anti-Saccade
Time Frame: 2 Days
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Repeatability, variation and learning effect of vestibular testing of PAS goggles will be evaluated using the test results on both sessions for the Anti-saccade sub-test evaluted in Percent Error.
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2 Days
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Vestibular Gain
Time Frame: 2 Days
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Repeatability, variation and learning effect of vestibular testing of PAS goggles will be evaluated using the test results on both sessions for the following sub-tests: a) OKN at 60 degrees/second, and b) Smooth Percent Horizontal Velocity.
Subtests are all evaluated in gain (output/input in decimal form)
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2 Days
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Vestibular Saccade Horizontal
Time Frame: 2 Days
|
Repeatability, variation and learning effect of vestibular testing of PAS goggles will be evaluated using the test results on both sessions for the Saccade Horizontal sub-tests evaluated in seconds.
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2 Days
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Vestibular Predictive Saccade
Time Frame: 2 Days
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Repeatability, variation and learning effect of vestibular testing of PAS goggles will be evaluated using the test results on both sessions for the subtest Predictive Saccade (PS) evaluated as percentage of prediction.
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2 Days
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Motion Sickness as Measured by the MSAQ
Time Frame: Day 1
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Motion sickness is measured by the subjects being given a motion sickness assessment questionnaire (MSAQ).
The MSAQ is a validated measure of motion sickness and in this questionnaire the examiner asks subjects 16 questions.
Subjects score each question as "not at all" (score of zero) or on a seventy scale of 1-9.
The total score ranging from 0-144 with the score reported as a percentage.
The higher percentage score indicates more motion symptoms experienced by the subjects.
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Day 1
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (ACTUAL)
October 29, 2015
Primary Completion (ACTUAL)
November 28, 2016
Study Completion (ACTUAL)
November 28, 2016
Study Registration Dates
First Submitted
June 7, 2017
First Submitted That Met QC Criteria
June 7, 2017
First Posted (ACTUAL)
June 9, 2017
Study Record Updates
Last Update Posted (ACTUAL)
May 17, 2022
Last Update Submitted That Met QC Criteria
April 20, 2022
Last Verified
April 1, 2022
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 20150663
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
Yes
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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