Absence of accommodation during perceptual reversal of Necker cubes.
D000065:Accommodation, Ocular; D005403:Fixation, Ocular; D006801:Humans; D007088:Illusions / Q000502:physiology*; D009903:Optical Illusions / Q000502:physiology*; D011680:Pupil; D013028:Space Perception / Q000502:physiology*