Figure 3

Correlations between perceptual thresholds and other vestibular characteristics. (A) Dizziness symptom severity (DHI score) vs. 0.05 Hz roll tilt thresholds. The triangle shows the mean of the normal 0.05 Hz roll tilt threshold+/− one SE. The black dashed line (described in the text) segregates VM patients into two subsets, VM1 patients (grey icons) clustered about the grey regression grey line, and VM2 patients (black icons) clustered about the black regression line. DHI is scored from 0 (no dizziness) to 100. (B) VOR time constant vs. 0.05 Hz roll tilt thresholds. VM patients were separated into VM1 (grey icons and regression line) and VM2 (black icons and regression line) as in Fig. 3A. For both 3 A and 3B, 95% confidence ellipses are shown for VM1 and VM2, and filled icons are patients with data in both 3 A and 3B while open icons are patients with data in either 3 A or 3B.