11. The andent difference between two stimuli required to be detected is known as: A. Sensational difference B. Absolute threshold C. Adaptation level D. Difference threshold 12. What term refers to the reduction in responsiveness to a persistent stimulus over time? A. Acclimatization B. Sensory adaptation C. Habituation D. Neural fatigue 13. Which of the following is a fundamental principle of Gestalt psychology? A. The whole is greater than the sum of its parts B. The whole is equal to the sum of its parts C. The whole is less than the sum of its parts D. The whole and its parts have no relationship 14. What is the term for the tendency to perceive individual elements as part of a larger pattern or structure? A. Figure-ground effect B. Proximity effect C. Similarity effect D. Continuity effect 15. Which gestalt principle suggests that people tend to group close stimuli together? C. Law of closure A. Law of similarity D. Law of proximity B. Law of continuity 16. What is the name of the phenomenon where people tend to fill in missing information to create a complete and meaningful image? C. Color constancy A. Perceptual completion D. Shape constatcy B. Object constancy 17. Which of the following is a function of the sensory system? A. Interpretation of sensory information B. Storage of sensory information C. Transmission of sensory information to the brain. D. Regulation of sensory information 18. The process of sensory adaptation refers to the way our senses: A. Adapt to changes in the environment B. Interpret sensory information C. Store sensory information D. Transmit sensory information to the brain 19. The sensory threshold refers to: A. The minimum amount of sensory stimulation needed to detect a stimulus B. The maximum amount of sensory stimulation that can be detected C. The average amount of sensory stimulation that can be detected D. The amount of sensory stimulation needed to interpret a stimulus 20. The process of perceiving objects in three dimensions, even when the visual stimuli are two -dimensional, is known as; A. Depth perception B. Size perception C. Shape perception D. Color perception