Immersive virtual environment for visuo-vestibular therapy: preliminary results

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Biomechanics

Background:

• Vestibular areflexia significantly impairs balance, making vision a critical compensatory cue.
• Traditional opto-kinetic stimulation methods have limitations in replicating real-world visual environments.

Purpose of the Study:

• To develop and evaluate an immersive 3D opto-kinetic stimulation platform for therapeutic balance training.
• To assess the impact of adjustable visual flow parameters on balance adjustments in patients.

Main Methods:

• Development of a 3D immersive therapeutic platform utilizing opto-kinetic stimulation with adjustable flow types and speeds.
• Quantification of balance adjustments using force plate data, including center of pressure trajectory and disequilibrium corrections.
• Application of ANOVA factorial design to analyze the effects of stimulation parameters.

Main Results:

• Patients reported high immersion and significant motor responses to prevent falls.
• Significant effects were observed for flow speed, session number, and gaze anchor on balance control.
• The 3D immersive platform overcomes limitations of traditional 2D systems.

Conclusions:

• Immersive 3D opto-kinetic stimulation is an effective tool for inducing adaptive balance reactions in vestibular patients.
• This platform offers a powerful therapeutic approach for retraining balance control processes.
• The system enhances immersion and motor responses compared to conventional methods.