Spelling results for subject <i>nbf</i> during the unsupervised blocks.

<p>Per block, the top line represents the desired text, the middle line displays text produced online by the unsupervised classification. Text predicted by the posthoc re-analysis at the end of the block is shown at the bottom line. Two trials are needed to determine a symbol. Individual selection errors (wrong trials) of both methods are marked by black squares directly below each symbol. Please note that the classifier was re-initialized randomly at the beginning of each block.