Lecture 23: Auditory perception 2 Flashcards Preview

Uncategorized > Lecture 23: Auditory perception 2 > Flashcards

Flashcards in Lecture 23: Auditory perception 2 Deck (10):
1

Hair cells sit in rows on the

basilar membrane

2

We have approximately _______ inner
hair cells and ______ outer hair cells

3,500; 20,000

3

Difference between inner (1) and outer (3) hair cells?

Outer: moves tectorial membrane to trigger inner hair cells
1 column of inner hair cells

Inner: 95% go up auditory nerve to the brain (5% outer)
3 column of inner hair cells

4

the change from physical
energy to electrochemical energy

transduction

5

The moving roof triggers _________ to send signals along the ____________.

inner hair cells; auditory nerve

6

What is the place code?

Frequency localised on how close to the base of basilar membrane

7

When does place code theory hold up?

High frequencies above 800Hz.

8

What is phase locking?

Spikes the same time as peaks of frequencies

9

Auditory nerve connected to inner hair cell tends to fire
at the __________ of the stimulating waveform.

same phase

10

When does phase locking theory hold up?

Low frequencies below 1-2kHz