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Cortical Effects of User Learning in a Motor-Imagery BCI Training

The aim of this work was to investigate cortical effects of user learning in a BCI training. 15 participants absolved six sessions of a two-class BCI training (right hand vs. feet motor imagery), whereby the classifier gained from an initial screening session was not adapted. Good performers showed distinct patterns right from the beginning and no changes due to the training could be observed. In bad performers a cortical effect of BCI training was found. A significant difference in brain activity pattern between right hand and feet motor imagery developed in the course of the training..