Auditory random-walk discrimination.

One‐dimensional random‐walk temporal sequences were generated by cumulating successive perturbations within a jitter discrimination test. Random‐walk discrimination may be substantially superior to jitter discrimination. This superiority is nullified: (a) at extreme low and high interpulse intervals; (b) at high reference jitter levels; and (c) when the range of the random walk is curtailed. The superiority of random‐walk detection is presumably related to the increased temporal dispersion about the mean interpulse interval. Restriction of the random walk reduces its superiority over jitter detection.