Thresholds of recognition of different features of colored stimuli.
D002540:Cerebral Cortex / Q000502:physiology; D003118:Color Perception / Q000502:physiology*; D005556:Form Perception / Q000502:physiology; D006801:Humans; D010364:Pattern Recognition, Visual / Q000502:physiology; D012684:Sensory Thresholds; D012858:Size Perception / Q000502:physiology