Fig. 5.

Pupil dilation response in entire trial interval. A, Pupil dilation response relative to the pupil size in the baseline interval prior speech onset (i.e., baseline1 between 7 and 8 sec, see also Fig. 1). The vertical lines indicate the intervals of interest for an average sentence length of 1.84 sec. B, Maximum peak pupil dilation in the entire interval between speech onset (8 sec after trial onset) and the end of the trial. Note that the values do not directly correspond to the data illustrated in A because the latency of the peak pupil dilation for each condition differed between individuals.