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Evoked Potentials Part 3: Auditory Steady State Response

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1.  In order to test binaurally, what is the montage for ASSR? Cz to Nape with mid-forehead ground Cz and Linked mastoids with mid-forehead ground Traditional 2 channel ABR montage A & B

2.  2. What is the maximum number of stimuli that can be presented simultaneously in each ear? 2 3 4 6

3.  What are the components of the stimulus? Carrier frequency Amplitude Modulation Depth Frequency Modulation Amplitude Modulation Rate All of the above

4.  When using a low modulation rate (i.e. 40 Hz) what must the patient state be? Sedated Asleep Awake None of the Above

5.  When using a high modulation rate (i.e. 90 Hz) what can the patient state be? Sedated Asleep Awake All of the above

6.  What is the name of the statistical measurement that the ICS ASSR calculates to assist with response interpretation? F-test Phase coherence Adaptive Digital Filter named the Fourier Linear Combiner None of the above

7.  What are the components of the ICS RapidASSR Detection? Estimation Statistical Analysis Response Detection All of the above

8.  ASSR is unique in that the measured response is directly related to a parameter of the stimulus. Which stimulus parameter reflects the response we seek to measure? Amplitude modulation rate Carrier frequency Amplitude modulation depth Frequency modulation

9.  What test parameter modification can be made if the brain is not responding at a particular frequency? Change the FM modulation percentage Change the modulation rate for that particular frequency making sure it does not have the same modulation rate as any other frequency Change the modulation depth None of the Above

10.  What must be present for an intensity to be determined as the patient's threshold? A response at a higher intensity within 20 dB of the threshold intensity A response above the level being determined as threshold Any positive response can be taken as threshold None of the Above