title: A versatile optical stimulator providing increments and decrements of brightness or pure color contrast of moving or flasing stimuli.
mesh_terms: D000818:Animals; D002415:Cats; D003116:Color; D009068:Movement; D055095:Optics and Photonics; D010775:Photic Stimulation / Q000295:instrumentation*; D010783:Photometry; D012160:Retina / Q000502:physiology