SHS 311 Exam Questions With Correct
Answers
the |cochlear |microphonic |has |the |same |() |as |the |input |sound |waveform |- |CORRECT |
ANSWER✔✔-frequency
most |afferent |auditory |nerve |fibers |innervate |the |- |CORRECT |ANSWER✔✔-inner |hair |cells
during |the |depolarization |phase |of |an |action |potential, |which |channel |opens? |- |CORRECT |
ANSWER✔✔-NA+ |channel
what |is |spontaneous |response |- |CORRECT |ANSWER✔✔-neural |response |in |the |absence |of |
sound
which |is |not |a |feature |of |the |neural |tuning |curve |- |CORRECT |ANSWER✔✔-compressive |
nonlinearity
what |is |an |auditory |nerve |fiber's |characteristic |frequency? |- |CORRECT |ANSWER✔✔-the |
frequency |at |the |trough |of |the |tuning |curve
in |the |PST |histogram, |which |response |rate |is |the |highest? |- |CORRECT |ANSWER✔✔-onset |
response
neurons |fire/do |not |fire |at |a |particular |phase |of |stimulus |but |the |may/may |not |fire |in |each |
stimulus |cycle |- |CORRECT |ANSWER✔✔-fire/may |not
, if |an |ISI |histogram |has |peaks |at |4, |8, |12, |and |16 |msec, |what |is |the |likely |frequency |of |the |
sound? |- |CORRECT |ANSWER✔✔-250 |Hz
what |is |the |limitation |of |rate |code |of |intensity? |- |CORRECT |ANSWER✔✔-limited |dynamic |
range
which |frequency |is |unlikely |to |produce |auditory |nerve |responses |that |follow |the |temporal |
pattern |of |sound |waveform |- |CORRECT |ANSWER✔✔-10000 |Hz
where |is |auditory |cortex |located? |- |CORRECT |ANSWER✔✔-temporal |lobe
what |does |fMRI |directly |measure? |- |CORRECT |ANSWER✔✔-oxygenated |blood |flows
which |part |of |the |superior |olivary |complex |is |used |to |process |the |ITD |cues? |- |CORRECT |
ANSWER✔✔-medial |superior |olive
lateral |inhibitory |network |is |used |to |process? |- |CORRECT |ANSWER✔✔-spectral |contrast
How |is |an |action |potential |generated? |- |CORRECT |ANSWER✔✔--when |the |input |stimulus |is |
higher |than |the |threshold, |the |sodium |channels |open |and |move |into |the |cell, |increasing |the |
potential |(depolarization), |when |the |potential |increases |to |a |certain |level, |the |sodium |channel |
closes |and |the |potassium |channels |open, |potassium |moving |out |of |the |cells |which |decreases |
potential |(repolarization) |until |potential |is |lower |than |resting |potential. |both |sodium |and |
potassium |channels |will |close, |sodium |potassium |pump |then |starts |to |work |to |redistribute |
until |potential |is |back |to |resting |potential |(refractory |period). |Cell |can |not |generate |action |
potentials |until |after |refractory |period |which |is |about |1 |ms, |meaning |the |rate |at |which |action |
potentials |can |be |generated |is |maximally |1000 |times/sec
resting |potential |- |CORRECT |ANSWER✔✔-is |a |constant |potential |that |exists |between |
Endolymph |and |Perilymph |even |without |stimulation
Answers
the |cochlear |microphonic |has |the |same |() |as |the |input |sound |waveform |- |CORRECT |
ANSWER✔✔-frequency
most |afferent |auditory |nerve |fibers |innervate |the |- |CORRECT |ANSWER✔✔-inner |hair |cells
during |the |depolarization |phase |of |an |action |potential, |which |channel |opens? |- |CORRECT |
ANSWER✔✔-NA+ |channel
what |is |spontaneous |response |- |CORRECT |ANSWER✔✔-neural |response |in |the |absence |of |
sound
which |is |not |a |feature |of |the |neural |tuning |curve |- |CORRECT |ANSWER✔✔-compressive |
nonlinearity
what |is |an |auditory |nerve |fiber's |characteristic |frequency? |- |CORRECT |ANSWER✔✔-the |
frequency |at |the |trough |of |the |tuning |curve
in |the |PST |histogram, |which |response |rate |is |the |highest? |- |CORRECT |ANSWER✔✔-onset |
response
neurons |fire/do |not |fire |at |a |particular |phase |of |stimulus |but |the |may/may |not |fire |in |each |
stimulus |cycle |- |CORRECT |ANSWER✔✔-fire/may |not
, if |an |ISI |histogram |has |peaks |at |4, |8, |12, |and |16 |msec, |what |is |the |likely |frequency |of |the |
sound? |- |CORRECT |ANSWER✔✔-250 |Hz
what |is |the |limitation |of |rate |code |of |intensity? |- |CORRECT |ANSWER✔✔-limited |dynamic |
range
which |frequency |is |unlikely |to |produce |auditory |nerve |responses |that |follow |the |temporal |
pattern |of |sound |waveform |- |CORRECT |ANSWER✔✔-10000 |Hz
where |is |auditory |cortex |located? |- |CORRECT |ANSWER✔✔-temporal |lobe
what |does |fMRI |directly |measure? |- |CORRECT |ANSWER✔✔-oxygenated |blood |flows
which |part |of |the |superior |olivary |complex |is |used |to |process |the |ITD |cues? |- |CORRECT |
ANSWER✔✔-medial |superior |olive
lateral |inhibitory |network |is |used |to |process? |- |CORRECT |ANSWER✔✔-spectral |contrast
How |is |an |action |potential |generated? |- |CORRECT |ANSWER✔✔--when |the |input |stimulus |is |
higher |than |the |threshold, |the |sodium |channels |open |and |move |into |the |cell, |increasing |the |
potential |(depolarization), |when |the |potential |increases |to |a |certain |level, |the |sodium |channel |
closes |and |the |potassium |channels |open, |potassium |moving |out |of |the |cells |which |decreases |
potential |(repolarization) |until |potential |is |lower |than |resting |potential. |both |sodium |and |
potassium |channels |will |close, |sodium |potassium |pump |then |starts |to |work |to |redistribute |
until |potential |is |back |to |resting |potential |(refractory |period). |Cell |can |not |generate |action |
potentials |until |after |refractory |period |which |is |about |1 |ms, |meaning |the |rate |at |which |action |
potentials |can |be |generated |is |maximally |1000 |times/sec
resting |potential |- |CORRECT |ANSWER✔✔-is |a |constant |potential |that |exists |between |
Endolymph |and |Perilymph |even |without |stimulation
