Figure 3

Accuracy during QWERTY classification and free communication. (a) Individual differences in QWERTY classification (single flicker epochs: 1.5 s). Participants classified with greater than 80% accuracy (N = 8/17) advanced to free communication, with the remaining participants undergoing retraining with a double flicker epoch (3 s). (b) Box plot of QWERTY classification for the low accuracy group with 1.5 s single and 3 s double flicker epochs. (c) Box plot of performance for the high accuracy group on QWERTY classification and free communication via prompted association. In these and subsequent box plots, coloured rings represent individual participants, the central bars represent the median, outer bars represent the 25th and 75th percentiles, and the whiskers extend to the absolute maxima.