Ch#3Handout Master 3.73rdedFill-in-the-Blanks1.____________________ is the activation of receptors in the various sense organs.2._______________ __________________________ __________________ is the smallestdifference between two stimuli that is detectable 50 percent of the time.3.The smallest amount of energy needed for a person to consciously detect a stimulus 50 percent ofthe time it is present is called ____________________ ______________________.4.The process by why subliminal stimuli act upon the unconscious mind, influencing behavior iscalled _________________ __________________.5.____________________________ is the tendency of the brain to stop attending to constant,unchanging information.6.The tendency of sensory receptor cells to become less responsive to a stimulus that is unchanging_________________ _______________________.7.This refers to the purity of the color people see and it is called _______________.8.The ________________ is a clear membrane that covers the surface of the eye; protects the eyeand is the structure that focuses most of the light coming into the eye.9.The ____________________ is another clear structure behind the iris, suspended by muscles;finishes the focusing process begun by the cornea.
