Kinect-based detection of self-paced hand movements: enhancing functional brain mapping paradigms

Area of Science:

• Neuroscience
• Rehabilitation Engineering
• Biomedical Signal Processing

Background:

• Monitoring brain activity like electroencephalography (EEG) during stroke rehabilitation is crucial for understanding and predicting motor recovery.
• Current EEG paradigms often lack functional movements and rely on cue-guided repetitive tasks, limiting their clinical applicability.
• Developing methods for tracking naturalistic movements during rehabilitation is essential for creating more effective computational models.

Purpose of the Study:

• To evaluate the usability of the Kinect device for tracking self-paced hand opening and closing movements.
• To assess the quality of trigger information generated by the Kinect for use in electroencephalography (EEG) studies.
• To determine if Kinect-generated triggers are comparable to traditional electromyography (EMG) signals in a rehabilitation context.

Main Methods:

• Three able-bodied volunteers performed self-paced hand open-close movements.
• Electroencephalography (EEG) signals were recorded from sensorimotor areas.
• Electromyography (EMG) was recorded from forearm muscles, and Kinect device data was captured simultaneously.
• Kinect-generated trigger data was compared with EMG signals.

Main Results:

• The Kinect device successfully tracked self-paced hand opening and closing movements.
• Trigger information generated by the Kinect was found to be comparable to that obtained from EMG.
• The study demonstrated the potential of the Kinect for generating reliable timing data in EEG-based rehabilitation research.

Conclusions:

• The Kinect device is a viable tool for capturing functional movement data in a clinical rehabilitation setting.
• Kinect-based tracking offers a promising, non-invasive method for generating trigger signals for EEG analysis during motor rehabilitation.
• This approach can facilitate the development of computational models for predicting motor improvement after stroke.