overview of the auditory system and neural encoding underlying speech of perception in the auditory nerve and brainstem
High frequency is maximum deflection near __ of basilar membrane.
Low frequency is maximum deflection __ of basilar membrane.
How the entire membrane vibrates in response to __ frequency.
How one place vibrates in response to ___ frequencies.
The basilar membrane is tonotopic. Tono- refers to __ or __. Topic refers to __ or __.
Basilar membrane acts like a series of overlapping, bandpass filters for frequency __. Each place along BM is tuned to a specific frequency.
Stiffness decreases __ along the basilar membrane. It does not decrease linearly along BM. As you move from one place to another along the BM, frequency changes ___, not linearly.
Complex sounds are sounds made of more than one __ wave. Fourier's analysis says any sound can be broken down into a series of individual sine waves (what the ear attempts to do)
The pillar side of ANF has ___ diameter fibers, ___ mitochondria, __ synapse, high __, __ threshold at CF, __ dynamic ranges.
The modiolar side of the ANF has __ diameter fibers, __ mitochondria, __ synapse, low __, __ threshold at CF, __ dynamic ranges.
Action potentials do not occur in __ of sine waves.
Summed output of many ANF
If you know something about the period through phase-locking, you know something about the frequency
Temporal coding is the time between __ __ that contains information and phase-locking by ANF says that action potentials only occur at a particular phase of the sine wave. Also known as __.
Bushy cells have a __ dendritic field. ANF has input on the soma as ___ synapses. Only a few ANFs innervate the soma. Tuning curves are __. Bushy cells have primary-like responses to tones (irregular firing pattern, strong phase-locking, No ISBs (inhibitory))
end-bulb (largest in brain)
Stellate cells have __ dendritic fields. ANF has input on the soma as __ synapses. Dendrtes parallel isofrequency lamina. Stellate cells have narrow tuning curves and __ responses to tones (regular firing patterns, weak phase-locking, sideband inhibition)
Primary-like units (bushy cells) pathway for representation of speech sounds based on __. Disruption of synchrony across ANFs will degrade __-place representation of speech sounds.
Chopper units (stellate cells) pathway for rep. of speech sound based on ____. Loss of low SPAC ANFs will degrade ___ representation of speech sounds at higher SPLs.