title: Detection of quantum flux modulation by single photopigments in human observers.
mesh_terms: D003118:Color Perception / Q000502:physiology*; D003117:Color Vision Defects / Q000503:physiopathology; D005425:Flicker Fusion; D006801:Humans; D010786:Photoreceptor Cells / Q000502:physiology; D011789:Quantum Theory; D012168:Retinal Pigments / Q000502:physiology*; D013053:Spectrophotometry; D014794:Visual Fields
chemical_list: D012168:Retinal Pigments