title: On seeing a butterfly: the physiology of vision.
authors.forename: K A
authors.initials: KA
authors.lastname: Martin
authors.forename: V H
authors.initials: VH
authors.lastname: Perry
mesh_terms: D000818:Animals; D001931:Brain Mapping; D006801:Humans; D012160:Retina / Q000502:physiology; D014785:Vision, Ocular / Q000502:physiology*; D014792:Visual Acuity; D014793:Visual Cortex / Q000502:physiology; D014795:Visual Pathways / Q000502:physiology; D014796:Visual Perception / Q000502:physiology