Figure 5.

Examples of psychometric functions for 2-year-old children with associated 95% CIs for proportions. The vertical axis expresses the proportion of trials for which OKR was observed to be in the same direction as the stimulus. (A–C) Three examples of children whose thresholds fell above the 75th percentile (high thresholds). (D–F) Three examples of children whose thresholds were between the 40th and 60th percentile (moderate thresholds). (G–H) Three examples of children whose thresholds fell below the 25th percentile (low thresholds).