Psychology 1100E Lecture Notes - Lecture 9: Hair Cell, Middle Ear, Ames Room

• School: Western University
• Department: Psychology
• Course: Psychology 1100E
• Professor: Irene Cheung

Document Summary

Video: (cid:449)e do(cid:374)(cid:859)t s(cid:373)ell see o(cid:396) hea(cid:396) di(cid:396)e(cid:272)tl(cid:455) (cid:449)e se(cid:374)se it (cid:449)ith dete(cid:272)to(cid:396)s (cid:271)ut pe(cid:396)(cid:272)ei(cid:448)e it (cid:449)ith ou(cid:396) (cid:373)i(cid:374)d. Perceptual integration: video: do(cid:374)(cid:859)t ha(cid:448)e a (cid:396)eal a(cid:396)ea where our conscious perception occurs, occurs in many different modules. Lowest intensity at which a stimulus can be detected 50% of the time. Lower the absolute threshold - higher the sensitivity: signal detection theory. Difference between sensitivity of sensory system and criterion used. Our perception and detection is the perception with a decision made after. Ask participants to indicate if they perceived a stimulus. Lung cancer scans reader, scary movie walking home alone after: criteria do we use to determine if a stimulus is present. Fatigue, importance of stimulus, expectation: difference threshold. Smallest difference between two stimuli that can be detected 50% of the time. Jnd is proportional to magnitude of stimulus for which comparison is being made. Amount of increase needed to make a difference.