title: Interactions between spatial frequency channels.
mesh_terms: D000221:Adaptation, Ocular; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D008297:Male; D009903:Optical Illusions; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010470:Perceptual Masking; D014792:Visual Acuity