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Glossary of Psych 330 Audition

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Created by mstapleton

Pitch
Dominant sound wave
Amplitude
Intensity, loudness
Timbre
Complexity
Outer Ear
Pinna (external structure) catches sound waves and deflects them into external ear canal

Eardrum- vibrates ossicles

Middle Ear:

3 Ossicles

What do they do?



1. Hammer

2. Anvil

3. Stirup

Amplify sound





Cochela
contains auditory receptor cells

Receptor cells collectively called- organ of Corti

What 3 things are found in the Cochlea
1. Basilar membrane- tranduces sound waves into neural activity

2. Hair cells- generate graded potentials

3. Tectorial Membrane



How does motion of cillia transform electrochemical signals?
The tip link connects the cillium and ALSO opens/ influx of potassium and calcium, depolarizing the cells
Frequences:

Fast

Slow



Base, high pitched

Apex, low pitched

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