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by: Cydney Tinsley
Cydney Tinsley
CU Denver
GPA 3.2

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About this Document

These notes cover parts of the ear and auditory functioning.
Introduction to Psychology
Alex Northcutt
Class Notes
25 ?




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This 1 page Class Notes was uploaded by Cydney Tinsley on Thursday October 6, 2016. The Class Notes belongs to PSYC 1000 at University of Colorado Denver taught by Alex Northcutt in Fall 2016. Since its upload, it has received 24 views. For similar materials see Introduction to Psychology in Psychology (PSYC) at University of Colorado Denver.

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Popular in Psychology (PSYC)


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Date Created: 10/06/16
Cydney Tinsley Psychology Week 7: Auditory Auditory 1. Auditory: Detects soundwaves. 2. Soundwaves: Mechanical energy moving through air. a. Amplitude: Greater it is, greater the sound. b. Frequency: How many wave forms you get in X amount of time. Same as pitch. Measured in hertz. Lower the pitch, the lower the frequency. Younger people can hear higher pitches than older people. You slowly lose pitch/frequency over time. c. Timbre: Complexity of sound. 3. Parts of the Ear: a. Pinna: Outer ear. The visible part made of cartilage. Specifically shaped to funnel in soundwaves in the range of human speech. b. Tympanic Membrane: In-between the middle and out ear. Another name for your eardrum. Vibrates in response to sound coming in. c. Ossicles: Middle ear. Made up of hammer, anvil, and stirrup, the three smallest bones in your body. Move in response to pressure from the tympanic membrane and push on the oval window. d. Oval Window: Transition between middle and inner ear. e. Cochlea: Inner ear. Coiled-up shape filled with fluid. i. Tectorial Membrane: The ceiling of the cochlea. ii. Basilar Membrane: Causes the hair cells to move and bends them against the tectorial membrane. The point of transduction for sound. Tonotopically organized so that one end responds to high pitch and gradually moves to low pitch. iii. The inner ear is responsible for balance. 4. Somatosensory System: a. Gets information from your skin. i. Epidermis: Waterproof. No blood supply. Gets nourishment rom the environment. Covers your body. ii. Dermis: Cushions the body. Connective tissue. Below epidermis. Lots of nerve endings. iii. Hypodermis: Fashia that connects skin to muscles. iv. Adaptation: Speed. v. Free Nerve Endings: Areas of high sensitivity. Pain, temperature, and tactile information. Adapts slowly but has a high threshold of activity. vi. Root Hair Plexus: Lets you know when you have minor distortions on your body.


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