Frame-and-spot-induced motion: range effects and the difference between fixation and nonfixation of the induced stimulus.
For frame-and-spot-induced linear motion, Humber and Sherrick report that induced motion of a nonfixated static spot reduces as its separation from a fixated static spot increases. The authors invoke sensory factors, but range effects may undermine this interpretation.
Reinhardt-Rutland
A H
AH
Department of Psychology, University of Ulster at Jordanstown, Newtownabbey, County Antrim, Northern Ireland.
D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D008297:Male; D009903:Optical Illusions; D014796:Visual Perception