Apparatus to measure the speed at which, wheels in rotation present an appearing rotation speed inversion, the so called wagon wheel effect, with either one or two independent disks in rotation with various spokelikepatterns, and considering further characteristics specific to our design

摘要

The so-called “wagon wheel effect”, which our apparatus produces and measures under specific conditions which we have designed, appears when the visual superposition of (elements of) disks in motion, observed with one or two eyes, reaches a speed, at which normal brain processes perceive as a rotation speed inversion. We present an apparatus and a method allowing for various parameters measuring various conditions to be considered (such as rotation speed, lightning intensity, disk patterns variable in colors, in sizes, in symmetry and in their ability to reflect light—matt or glossy) to support the establishment of a normative theory and measure specific populations (aging population, individuals suffering from mental illness such as Alzheimer, possibly in their early stage of development) against this norm.