title: Asymmetric identification of parafoveal stimulus pairs: feature perturbations on failure in feature extraction?
mesh_terms: D004193:Discrimination Learning / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D005584:Fovea Centralis / Q000502:physiology*; D006801:Humans; D008266:Macula Lutea / Q000502:physiology*; D014794:Visual Fields