The goal of this clinical trial is to compare the user experience of Augmented Reality (AR) and Virtual Reality (VR) applications during music therapy interventions in individuals with Cerebral Palsy aged 15 to 35 years with Gross Motor Function Classification System (GMFCS) level I-V.
The main questions it aims to answer are:
Does AR or VR result in lower levels of cybersickness as measured by the Simulator Sickness Questionnaire (SSQ)? Does AR or VR provide better usability, preference, and perceived ease of interaction?
Researchers will compare AR and VR conditions to determine which technology results in lower cybersickness levels, higher usability scores, and greater user preference.
Participants will:
complete a pre-intervention SSQ assessment; engage in AR and VR sessions in a counterbalanced order using the Meta Quest 3 headset; explore each virtual environment for 5 minutes; perform motor tasks involving reaching and interacting with virtual musical objects (musical cubes representing musical notes: C-D-E-F-G-A-B); perform cognitive tasks involving identification and reproduction of musical note sequences guided by a therapist; perform percussion activities by following rhythmic patterns played by a therapist using virtual instruments; complete post-condition assessments after each session, including SSQ, System Usability Scale (SUS), preference, and reported difficulties.
Individuals with a confirmed diagnosis of Cerebral Palsy
Aged between 15 and 35 years
Participants of any sex
Cognitive ability compatible with participation in the study, determined by a minimum Intelligence Quotient (IQ) score established through the Wechsler Intelligence Scale for Children (WISC) or Wechsler Adult Intelligence Scale (WAIS)
Failure to attend the second experimental session
Withdrawal or interruption of participation in the study for any reason before completion of all study procedures
Insufficient corrected visual acuity to adequately interact with the immersive system, verified through a simple visual screening assessment
Failure to achieve the minimum Intelligence Quotient (IQ) score required for understanding the proposed tasks, as determined by the Wechsler Intelligence Scale for Children (WISC) or Wechsler Adult Intelligence Scale (WAIS) assessments
Crossover
Augmented Reality Music Therapy Using GenVirtual
DeviceAugmented reality-based music therapy activities delivered through the GenVirtual application, developed in Unity 3D and used with the Meta Quest 3 headset with hand-tracking interaction. Participants interact with virtual musical cubes and percussion instruments through reaching movements and hand-based interaction.
Virtual Reality Music Therapy Using GenVirtual
DeviceVirtual reality-based music therapy activities delivered through the GenVirtual application, developed in Unity 3D and used with the Meta Quest 3 headset with hand-tracking interaction. Participants interact with virtual musical cubes and percussion instruments through reaching movements and hand-based interaction.
User experience and usability of AR and VR environments
User experience will be assessed through an adapted version of the System Usability Scale (SUS) and additional user-reported measures of interaction quality, ease of use, and confidence. The assessment captures perceived usability, learnability, need for assistance, and overall satisfaction with the system during interaction in both Augmented Reality (AR) and Virtual Reality (VR) conditions.
Cybersickness symptoms (adapted symptom scale)
Symptoms of cybersickness will be assessed using a self-reported symptom scale adapted from the Simulator Sickness Questionnaire (SSQ), including dizziness, nausea, fatigue, blurred vision, sweating, anxiety, and discomfort. Each symptom is rated on a scale of 0 to 10 (0 = none, 10 = maximum). The measurements will be used to compare the variation in symptoms between AR and VR conditions.
Physical comfort and interaction quality (ISO 9241-400-based measures)
Physical comfort, effort, fatigue, precision, and interaction quality will be assessed using items adapted from ISO 9241-400 guidelines. The instrument evaluates posture comfort, physical effort during hand-tracking interaction, naturalness of movements, system responsiveness, and interaction consistency.
User preference between AR and VR conditions
Participant preference will be assessed after exposure to both conditions. Participants will indicate which environment (AR or VR) they preferred based on overall experience.
Reported difficulties and qualitative feedback
Participants will report perceived difficulties, frustration points, and positive aspects of interaction through structured questions and brief interviews. Additional observational notes from therapists may be recorded to identify usability barriers and interaction challenges.
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options:
