3D Reaching
Neuroimaging experiments usually require participants to be rigidly still during recording because of artifacts caused by the physical displacement. Using the Biosemi Active II electrode EEG system, the effect of physical movement is minimal to non-existent for movements that do not disrupt the electrode connection with the scalp.
Therefore, we undertook an experiment exploring, for the first time, the EEG of people moving their hand to one of three target locations. The spatial location of the finger, hand, wrist, elbow and shoulder were simultaneously recorded and the EEG was synchronized to the movement data, giving the exact time of movement onset, maximum acceleration, maximum velocity, minimum acceleration and movement offset. Using the contextual information provided by the current and previous few targets, we were able to extract very specific power fluctuations associated with movements to areas of space.
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