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16 Cards in this Set
- Front
- Back
4000 Hz |
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1000 Hz |
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500 Hz |
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advantages of click-based ABR? |
clicks evoke a large wave V response that is relatively easy to read |
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What is the limitation of click-based? |
measures made with clicks are correlated w later behavioral thresholds in the 2-4 kHz region |
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What does the tone-burst ABR test provide |
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both click and TB ABR should be used in correlation to obtain the most specific information |
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polarity |
alternating (instead of regular rarefaction used in click ABR)
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ramping |
refers to how the rise and fall of the tone is shaped
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rise/fall times |
Note: can use a brief TB - provides more well formed waves but less frequency specific |
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suggested durations for rise/fall times |
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correction factors and normative data |
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example of correction factor for 500 Hz audiometric thresholds at 0 dB HL |
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400 kHz tone |
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1 kHz tone burst |
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500 Hz TB |
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