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25 Matching questions

  1. Plateau Method
  2. IA Conservative Values:
    WR
  3. How to Mask:
    SRT
  4. Conservative Values
  5. Interaural Attenuation (IA)
  6. Overmasking
  7. Effective Masking
  8. When to Mask:
    SRT
  9. Shadow Curve
  10. When to Mask:
    WR
  11. Central masking shift
  12. Undermasking
  13. IA Conservative Values:
    Pure-tone AC
  14. How to Mask:
    WR
  15. IA Conservative Values:
    SRT
  16. Masking with difficult populations
  17. How to Mask:
    AC
  18. IA Conservative Values:
    Pure-tone BC
  19. How to Mask:
    BC
  20. Minimal Masking Level
  21. Masking
  22. When to Mask:
    AC
  23. When to Mask:
    BC
  24. Occlusion Effect (OE) for BC
  25. Crossover
  1. a •Better ear + pad (10 to 15 dB) + OE
    •AC(NTE) + pad + OE
  2. b •PL SRT(TE) - 35 dB
  3. c •A 40 dB difference b/w AC of the test ear and the non-test ear

    •AC(TE) - AC(NTE) ≥ 40 dB HL (50 dB HL)
    •AC(TE) - BC(NTE) ≥ 40 dB HL (50 dB HL)
  4. d hearing loss that mimics the other ear that is only different by Interaural attenuation. When you mask it, it will shift and become something else. Uncertain of the hearing loss when you mask it.
  5. e EXAMPLE:
    You can mask for a child that doesn't understand the directions or has intellectual disabilities or deficits by "listening for the birdie in the wind".
  6. f -Clinical experience will have a clinician decide when to not use conservative values
    -Can view patient's own Interaural attenuation to make decision as well
    -Methods may also affect with plateau allowing person to be able to allow higher levels.
  7. g •PL WR(TE) - SRT(NTE) ≥ 35 dB HL
    •PL WR(TE) - Best Bone(NTE) ≥ 35 dB HL

    •When SRT(NTE) and WR(TE) differ by 30 dB
  8. h happens when there is a conductive component in both ears. The noise can crossover too. When the level of the IA for noise is over 40. You can no longer get a threshold on the side you are testing. Use inserts b/c the IA is higher, therefore you will have less crossover
  9. i -how much is it going to take for that cochlea to not pick it up

    •crossover + pad (10 to 15 dB)
  10. j whenever you put noise in the ear, your brain tries to shut the noise down b/c it recognizes that its noise and it tries to turn it down to "ignore" it -> this is how we hear in noise. When you out noise in their threshold may shift 5-10 dB because of the noise.
  11. k •35 dB HL

    •WR is 30 or 40 dB SL above SRT threshold. Because we jump so much louder Interaural attention will crossover much quicker b/c we are louder.
  12. l •AGB ≥ 15 dB
  13. m •Use for masking AC & BC
    •Range of intensities (b/w under- and over- masking) that will permit effective masking. This is possible when the thresh in the TE remains the same when masking is successfully increased in the NTE by 5 dB (3x consecutively)


    •The starting point is the masking level for either AC or BC
    •If they hear the tone, masking goes up 5 dB
    •If they don't hear tone, the tone goes up 5 dB
    •When we reach their real threshold, it doesn't matter how loud the masking gets
  14. n •250 Hz: 20 dB
    •500 Hz: 15 dB
    •1000 Hz: 5 dB
  15. o •Headphones- 40 dB HL

    •Inserts- 50 dB HL; depends on how well you got the insert in the ear
  16. p -Amount of sound energy lost as sound travels from one ear to another via bone conduction
    -Most often related to bone conduction
    -Varies from person to person (we mask to be sure)
    -Varies across signal
    -You have to be above this level before they can hear it; how much is lost
  17. q -you could start without the pad, you will just have to turn it up a lot more; the minimum it is going to take mask

    -Plateau: start at starting level, present tone. If they get it the noise goes up. If they don't turn the tone up. You need to turn the noise up 3 5 dB steps in order to get the plateau
  18. r •PL WR(TE) - 25 dB
  19. s •Better ear + Pad (10 to 15 dB)

    •AC(NTE) + pad (10 to 15 dB)
  20. t •SRT(TE) - SRT(NTE) ≥ 45 dB HL (50 dB)
    •SRT(TE) - Best Bone(NTE) ≥ 45 dB HL (50 dB)

    •PTA and SRT are not in agreement (7-10 dB diff.)
  21. u When the test signal will still be perceived in the NTE b/c of an insufficient amount of masking noise presented to the NTE
  22. v -NOISE ALWAYS IN BETTER EAR!! (NTE)

    -The noise that you put in the ear you're not testing.
    -We mask b/c it is possible that the good ear is hearing the sound.
  23. w •Headphones- 45 dB HL

    •Inserts- 50 dB HL
  24. x •0 dB; but can vary from person to person
  25. y what gets to the other side in the NTE