Autokinesis of an Intermittent Luminance

Abstract

20 Ss were used in an experiment to determine whether autokinetic latency and displacement of an intermittent luminance reach minimum and maximum, respectively, at the same rate of intermittence. It was found that autokinetic latency and displacement of a small, low-luminance stimulus reach minimum and maximum, respectively, in the region of 2 to 16 cps. Measures repeated over 5 days disclosed no systematic effects of repeated exposures to the illusion.