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