PERCEPTUAL AND MOTOR SKILLS, vol.76, no.3, pp.823-829, 1993 (SSCI)
The basic conceptions used in the literature for the explanation of the stereokinetic cone illusion are examined and shown to contain an important flaw which concerns the presumed equivalence of retinal images projected by 2- versus 3-dimensional structures. Upon showing that such equivalence does not prevail, two hypotheses are proposed, pointing out that the illusion must arise from inherent characteristics of the nervous system and their interaction with the stimulus at critical parameters.