Means and standard deviations for each group for the bisection point (left panel), difference limen, (center panel) and Weber Fraction (right panel).

<p>No differences existed between groups on bisection point, although for all groups the perceived bisection point occurred earlier than the mathematical bisection point. SZ, BDP, and BDNP had increased temporal variability on both the difference limen and the Weber Fraction compared to controls. The SA group was not significantly different from controls.