PSY-220 Lecture Notes - Lecture 5: Morphine, Tinnitus, Genetic Predisposition
Document Summary
Properties of sound: amplitude refers to the intensity of the sound wave. We perceive this as loudness : frequency is the number of compressions per second and is measured in hertz (hz) By the time you are 20 you lost about 2,000 hertz 200-17,000. By the time you are 40 you lost about half of the amount of hertz 200-10,000. Structures of the ear: the ear drum: the tympanic membrane. Thin membrane, that when pressure waves move through the air, it vibrates it: three smallest bones of the human body: ossicles. Lined up so the snail shell is perpendicular to sticking a qtip in your ear. Inside the cochlea, are tiny little fibers that come out, that are the axons of individual receptors that form the auditory nerve: sticking off the front end of the cochlea: the semicircular canals have nothing to.