title: Some observations on the Poggendorff and Müller-Lyer tactual illusions.
mesh_terms: D000293:Adolescent; D000328:Adult; D007839:Functional Laterality; D006801:Humans; D007088:Illusions / Q000502:physiology; D008297:Male; D009903:Optical Illusions; D014110:Touch / Q000502:physiology