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Update on Auditory Evoked Responses: Value of Chirp Stimuli in ABR/ASSR Measurement

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1.  Conventional click stimulation produces an ABR due to activation of which frequency region of the cochlea?
  1. 500 to 1000 Hz
  2. 20 to 20,000 Hz
  3. 2000 to 4000 Hz
  4. 500 to 2000 Hz (PTA region)
2.  The click evoked infant ABR can help to identify which of the following types of hearing loss?
  1. Conductive
  2. Sensory
  3. Neural
  4. All of the above
3.  The goal with chirp click stimulation in ABR measurement is to
  1. assess hearing sensitivity for frequencies above 8000 Hz
  2. maximally activate the cochlea across a wide frequency region
  3. produce a frequency-specific ABR
  4. eliminate the need for aural immittance measurements
4.  Chirp stimuli can be used in which of the following electrophysiological measurements?
  1. Air conduction ABR
  2. Bone conduction ABR
  3. ASSR
  4. All of the above
5.  The basic principle in chirp ABR measurement is
  1. temporal compensation for cochlear travel time
  2. to overcome the air-bone gap
  3. to sell more ABR devices
  4. to eliminate the need for OAEs in infant hearing assessment
6.  Which of the following are advantages of chirp stimuli in infant ABR assessment?
  1. Larger wave V amplitude
  2. More confident identification of wave V
  3. Shorter test time
  4. All of the above are advantages of chirp stimuli
7.  Which of the following statements is NOT true?
  1. Chirp stimuli are now available on some ABR devices
  2. Research studies confirm larger ABR amplitude with chirp stimulation
  3. Chirp stimuli were developed in 2015 and are unavailable for clinical application
  4. Special earphones are required for presentation of chirp stimulation
8.  With the use of chirp click stimuli, amplitude of the ABR wave V:
  1. Is smaller in comparison to ABRs recorded with conventional click stimuli
  2. Is equivalent to to ABRs recorded with conventional click stimuli
  3. Is larger in comparison to ABRs recorded with conventional click stimuli
  4. is about 3 microvolts
9.  Which one of the following persons published original research on chirp stimuli and their use in ABR measurement?
  1. Raymond Carhart
  2. James Jerger
  3. Claus Elberling
  4. Gus Mueller
10.  Chirp versions of which of the following stimuli are now available on some ABR devices?
  1. Air conduction clicks
  2. Air conduction tone bursts
  3. Bone conduction clicks and tone bursts
  4. All of the above

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