Stepping in Place While Voluntarily Turning Around Produces a Long-Lasting Posteffect Consisting in Inadvertent Turning While Stepping Eyes Closed

Figure 2

Peak velocity and time course of the posteffects. (a) Time at which rotation velocity peaked during PKAR (yellow bar) and during the posteffect of voluntary turning (vPKAR, green bar). (b) Time constants of the exponential fit to the time course of the two posteffects. was the time constant of the initial rise and was the time constant of the decay in angular velocity over time. (c) For each subject, the time constants ( green filled symbols, open symbols) of vPKAR are plotted against the rotation velocity of voluntary turning. indicates significant difference () between mean time constants (b).

(a)

(b)

(c)