Operating Instructions MA 42
Operating_Instructions_8100460-6_MA42_e_15a 23 8100460-6 1/15
To start the test select OT Test with the functional selector button (13), choose
MLB, then the MLB test screen will be displayed:
Figure 9 – MLB screen
Select the left or right ear by the functional selector button (9). Then select the
both frequencies left and right frequency up or down buttons (4) or (5). Adjust
the level of by the level controls (1). Present the stimulus by the stimulus
presenter button (2). Press the store button (3) to save the level of equal
loudness. Repeat the procedure for several different levels.
To compare the loudness of further frequencies press the frequency up or down
button (4) or (5), a new ladder diagram will appears. Use the functional selector
button (9) or (11) to jump to the previous or next diagram. Select 500 ms or
1000 ms as modulation time by the functional selector button (13). To exit the
ABLB test screen press the button (6).
5.1.10 Stenger
The Stenger test is a test for malingering based on the auditory phenomenon
of the referral to the ear in which the sound appears loudest. Select HL to
perform the Stenger test and set the left and right channel to tone. Instruct the
patient to press the response button when he hears a tone, without mentioning
which ear they will hear the tone in. Present a tone to the better hearing ear 5
or 10 dB above its threshold. Present the tone continuously by pressing the
STIM Mode button (8) and set it to interrupter mode. Use the other channel to
present the same continuous tone to the suspected ear at a level just below the
level that the patient (maybe untruthfully) has reported to be his hearing
threshold for this ear. If the patient reports that the tone in the normal ear has
disappeared by saying that now he hears nothing, he is essentially malingering.
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