Table 3.

Sensitivity and specificity of oculomotor parameters in the PSP group

	Area under the ROC-curve	Sensitivity (%)	Specificity (%)
VGRS (vertical) peak eye velocity, °/s	0.858	56.5	95.5
VGRS (up) peak eye velocity, °/s	0.880	62.4	95.5
VGRS (down) peak eye velocity, °/s	0.799	60.0	95.5
VGRS intrusion rate, °/s	0.938	54.2	97.6
VGRS vertical asymmetry	0.694	27.1	95.1

The calculation was performed by ROC analysis. The values given for sensitivity and specificity refer to the defined limit values

VGRS visually guided reactive saccades