Reflex Latency - Interacoustics AT235 Additional Information

AT235 Additional Information
3.2.4

Reflex latency

Select a reflex Latency test in your Protocol settings. When rotating the wheel, the following settings can be
selected and changed.
A Auto run. Once enabled for a test auto run will cause this test to be automatically run as part of
the protocol.
B Show warning gives you the opportunity to set a level at which the AT235 gives a warning.
C Measure latency at ambient pressure allows you to measure reflex latencies while the tympanic
peak pressure is being ignored. When checked, measurements are performed at 0daPa.
D Set stimulus level allows you to choose if the stimulus level is set to Manual or Automatic.
Manual means that prior to the test, a pop up window asks you to set the stimulus level. When
choosing Manual it is recommended to have Show warning off. Otherwise, you may be asked
twice to set the stimulus level when it exceeds the warning level. Automatic means that the AT235
sets the stimulus level 10dB above reflex threshold level. If that stimulus level exceeds the warning
level or cannot be obtained, you will still be asked to set the stimulus level manually.
E Display reflexes as either Positive or Negative makes the reflex curve flip over the x-axis. When
Positive is chosen, you will normally expect the deflection to go in positive direction.
F At Scale you choose the maximum values of the y-axis on the reflex graph.
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