These EEG signals were recorded during a P300 speller paradigm. Number of subjects: 10 Number of channels: 19 Number of sessions/subject:4 ------------------------------------------------------------------------------------------------------------------ Each session has duration of 10 minutes, and is consisted of 14 runs (14 characters). After each run, there was a pause of 3s, and during this time the matrix was blank. • The first session consisted of a series of separated characters, ordered in the following sequence: ض – س – ق – ل – ع – ن – ح – م – أ – ت – و – ر – ب – ه) ) • The second session also consisted of a series of separated characters, ordered in the following sequence: ذ – خ – ص – ي – د – ث – ف – غ – ج – ظ – ك – ش – ز – ط ) ) • The third session consisted of short words: طب - قف - عن - يد - كتب – لغة ) ) • The fourth session consisted of one long word: فأستسقيناكموها ) ) ------------------------------------------------------------------------------------------------------------------- EEG signals were performed at MAZLOUM hospital, Tripoli, Lebanon.