Table 5. Normative data for tests with cognitive involvement: Predictive saccades and antisaccades.

Test	Metric	RI lower limit	RI upper limit	90% CI for lower limit RI	90% CI for upper limit RI
Predictive Saccades	Percentage predicted (%)	17	n/a	14–17	n/a
Antisaccades	Error Rate (%) = % of pro-saccade errors	0	50	0–0	50.00–50.00

The upper and lower limits of the reference interval (RI) and 90% confidence interval (CI) for each limit are presented. For one-sided metrics, the limit of no interest is marked with not applicable (n/a). For description of each metric see Table 2.