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Clinical Trial Summary

The purpose of this study is to investigate brain activity during current visual and auditory tasks for balance control. The participants will perform cognitive, gait, and balance measures before the data collection to exclude people with neurological disorders. The participants will wear VR headset which provides visual tasks. The participants will need to maintain balance while performing concurrent visual and auditory tasks. The brain activities, reaction time, and eye-tracking data will be collected during doing our experimental tasks.

Clinical Trial Description

Virtual reality (VR), defined as an interactive system including computers and media peripherals, creates an environment similar to a real-world and also provides audio and video feedback to users. Recently, the virtual reality technology is able to make a headset displaying 360 degrees VR environment and locate the headset in the space. This improvement of VR technology significantly reduces the cost of VR equipment and enhances the application of VR technology in the field of balance assessment and treatment. Optic flow (OF) has been used to study the effect of visual input on balance control. Most of the studies displayed OF on a screen rather than using 360 degrees visual field environment. Therefore, the subjects could obtain reference inputs for balance adjustment. The new VR headset makes it possible to play OF in a 360-degree visual field in which the subject will not able to obtain any reference inputs rather than using somatosensory and/or vestibular systems. It is unclear how the effect of aging and attention relocation affects postural control with concurrent visual and auditory attention tasks. In this study, fNIRS will be used to detect the brain activity of healthy adults in the prefrontal and temporal-parietal junction as they complete concurrent cognitive and visual tasks displayed by a VR headset. This work will focus on age and test positions (sitting vs standing). As age can play a role in brain activation levels, the investigators will compare results among younger adults (25-35 years), older adults (65-85 years), and older adults with the risk of falls. All the subjects will undergo concurrent auditory reaction time tasks and visual tracking tasks. The investigators will compare the brain images from the test conditions between the age groups and investigate if brain activity differs during the performance of reaction time tasks and visual tacking tasks. The goal of this study is to examine the effect of concurrent visual and auditory tasks on brain activation and postural control. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05117463
Study type Observational
Source East Carolina University
Contact Brian Sylcott, PhD
Phone 252-737-4652
Email [email protected]
Status Not yet recruiting
Start date December 15, 2021
Completion date August 31, 2023

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