👉 The term "optokinetic" refers to a type of experiment in which a person is exposed to light and can detect the shape or direction of a sound produced by an object. This phenomenon was first described by John W. Hahn in 1897, but it wasn't until the late 20th century that optokinetic experiments were widely studied and understood. Optokinetic experiments involve measuring the angle at which objects are reflected off a screen or surface and then using this