Research Article

Writing with the Eyes: The Effect of Age on Eye-Tracking Performance in Non-Disabled Adults and a Comparison with Bimanual Typing

Figure 2

Non-linear models fitted to describe the learning effect due to repetition of the protocol. (a) Mean typing speed and (b) mean error rate across the 11 trials in the 3 age groups. Dashed lines represent the increasing/decaying exponential model fitted on the data. Error bars represent the standard error of the mean in each measurement trial and age group.
(a)
(b)