With advances in technology, virtual reality (VR) is increasingly used in various fields, including rehabilitation, motor learning, and neuroscience. Its ability to provide controlled, immersive, and interactive environments makes it a valuable tool for training and assessment. However, despite its growing adoption, limited evidence exists on how cortical activation in VR compares to real-world conditions. Moreover, brain cortical activity during motor tasks, such as manual dexterity tasks, remains underexplored.

This study aims to compare brain cortical activity in real and immersive virtual reality settings during a manual dexterity task. Secondary objectives include:

• Examining the relationship between brain cortical activity and kinematics in both conditions.
• Comparing brain cortical activity between hand-tracking and controller-based interactions.

Inclusion Criteria:

• Age over 18 years old
• Normal-to-corrected vision
• Ability to understand simple instructions

Exclusion Criteria:

• History of seizure
• Recent participation (within the last three months) in a study involving a manual dexterity task in immersive virtual reality
• Neurologic or orthopaedic pathology potentially affecting upper extremity movement

Participants will be recruited through word-of-mouth within the Belgian population