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Auditory Electrophysiology: Evidence-Based Applications

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1.  Frequency specific ABRs are elicited with which of the following stimuli: Tone bursts White noise Clicks All of the above

2.  Which answer best describes the relation between tone burst frequency and wave V latency: There is no relation Latency is longer for higher frequency tone bursts Latency is longer for lower frequency tone bursts Latency is equivalent for tone burst and click stimuli

3.  Which of the following confirms ear-specific bone conduction ABR findings: A clear wave V Wave I from the contralateral electrode array Wave I in the ipsilateral electrode array 40 dB of narrow-band masking noise

4.  ECochG clinical applications include all of the following EXCEPT: Enhancement of ABR wave I Diagnosis of Meniere’s disease Diagnosis of auditory neuropathy spectrum disorder Diagnosis of auditory processing disorders (APD)

5.  Which electrode option is optimal for non-invasive ECochG recording (i.e., produces the largest response): Disposable electrode on the mastoid TIPtrode Tympanic membrane electrode Transtympanic needle promontory electrode

6.  In diagnosis of auditory neuropathy spectrum disorder, ECochG helps to differentiate: Wave IV from wave V Conductive versus sensorineural hearing loss Pre- versus post-synaptic auditory dysfunction Brainstem versus cortical auditory dysfunction

7.  The summating potential (SP) component of ECochG is produced largely by: Outer hair cells Inner hair cells Auditory nerve fibers All of the above

8.  A reasonable click stimulation rate for the MLR is: 1.1/s 7.1/s 21.1/s 37.1/s

9.  Simultaneous recording of the ABR and MLR can be achieved by: Adding electrodes Increasing the stimulation rate Raising the high frequency filter cutoff Increasing the stimulus intensity

10.  LLR waveform components begin the process of becoming adult-like around: 12 months of age 24 months of age 6 years of age 12 years of age

11.  In general, P300 latency ___________ and amplitude ___________ when the target and standard stimuli become progressively easier to discriminate: decrease; decrease increase; increase increase; decrease decrease; increase

12.  The following are all true of CAEPs except: reflect slow-graded post-synaptic potentials evoked by virtually any change in the acoustic environment has a long maturational time course not influenced by subject state and attention

13.  The principle CAEP component in infants and young children is: P1 N1 P2 N2

14.  The most commonly used electrode montage for CAEP is: Cz referred to nose, with ground on Fpz Fpz referred to nose, with ground on Cz Cz referred to mastoid, with ground on Fpz Fpz referred to Cz, with ground on mastoid

15.  The HEARLab System relies on which of the following statistic as an objective measure of presence or absence of CAEP: F-statistic at a single point (Fsp) Hotelling’s T-squared Point-optimized variance ratio (POVR) Bonferroni