Exploring the Limitations of Event-Related Potential Measures in Moving Subjects: Pilot Studies of Four Different...

Area of Science:

• Neuroscience
• Human Motor Control
• Sports Science

Background:

• Measuring brain activity in moving individuals is crucial for understanding behavior in natural environments.
• Electroencephalography (EEG) is a potential tool, but significant movement artifacts must be addressed.

Purpose of the Study:

• To evaluate different technical approaches for measuring EEG and event-related potentials (ERPs) during rowing.
• To assess the reliability of ERPs during intense physical activity and identify challenges for movement research.

Main Methods:

• Four distinct EEG measurement setups were tested during rowing: a head-mounted preamplifier, a lab system with active electrodes, and a wireless headset with passive or active electrodes.
• A visual oddball task was employed to elicit visual evoked potentials (VEPs) during both rowing and rest conditions.

Main Results:

• Visual evoked potentials (VEPs) showed high within-subject similarity between rowing and rest, indicating reliable ERP measurement during athletic movement.
• Motor-related activity modulation by force output was significantly obscured by movement artifacts.
• Large motor potentials, increasing with force output, can mask smaller neural signals related to motor learning and control.

Conclusions:

• EEG/ERP measurements are feasible and reliable during strenuous activities like rowing, despite movement artifacts.
• Distinguishing neural activity from movement artifacts is essential for advancing EEG applications in movement research.
• Further technological development is required to isolate subtle motor control signals from overwhelming movement artifacts.