We discuss the ability to recognize the electrical activity of the brain associated with movements by the arms/legsand with imagination of such movements. Conducting experiments with a group of untrained volunteers, we showthat real and imaginary movements are clearly detected using the scaling exponent of the detrended fluctuationanalysis for the majority of EEG channels (usually 28-31 out of 33). Although this ability is shown regardless ofthe type of movements, the case of leg movements provided a slightly higher recognition results. This conclusionis supported by numerical estimations based on two quantitative measures.
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