PSY 200 Lecture Notes - Lecture 5: Far-Sightedness, Impossible Object, Cornea

• School: NCSU
• Department: Psychology
• Course: PSY 200
• Professor: Christopher B.Mayhorn

Document Summary

Sensory processes: sensation: registration of the physical properties of a stimuli (objective, psychophysics: field of psychology that investigates the relationship between sensory experience and physical properties of stimuli. Two types of sensory thresholds (limen): absolute: smallest amount of energy a person can detect; strength of the signal you can detect. Correct rejection: difference: smallest difference in stimulation that can be detected when two things are compared. Just noticeable: difference threshold from perspective of observer: we(cid:271)er"s law: (cid:272)hange ne(cid:272)essary to produ(cid:272)e a just noti(cid:272)ea(cid:271)le differen(cid:272)e is (cid:272)onstant proportion of intensity of stimulus. 1 candle + 100 candles= cant see difference. The senses: vestibular senses: tells us about bodily orientation with respect to gravity, adaption: less sensitive to constant stimuli (traffic noise in a big city) Hearing/audition: sound waves moving through air that stimulate auditory receptors in ears, three characteristics of sound waves, amplitude: loudness (db, frequency: pitch (hz, complexity: timbre; allows us to differ sources of sound.