Research Article

A New Approach to Separate Haemodynamic Signals for Brain-Computer Interface Using Independent Component Analysis and Least Squares

Figure 3

ICA method to separate physiological interference. (a) The time series of . (b) The time series of [HHb] calculated from S-D2. (c) Physiological interference separated with ICA method. (d) Evoked brain activity response extracted with ICA method.
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