otometrics MADSEN Midimate 622, Руководство пользователя

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8. SPECIAL TESTS
From the Select Function Menu, select:
Special
and the following display appears:
Select special Test :
SISI Fowler Stenger Rainv.
Select required test by pressing the appropriate softkey.
8.1 SHORT INCREMENT SENSITIVITY INDEX (SISI) TEST
Select the following setup:
Special, SISI, Left or Right.
The following display appears:
Freq. SISI (A) L:Tone Score 0 ( %)
1000 Hz 1-5dB 20 dB Pres.: 0 Stop
Softkey 2 = Intensity 1 dB/5 dB
Softkey 5 = Stop to reset or continue
The MIDIMATE 622 is able to perform automatic SISI tests with the
standardized specifications for this test.
Explain to the patient that he will hear a continuous tone the intensity of which
will be increased for a very short time (200 ms) every fifth second and that he
should press the patient signal
immediately each time he hears such a
change. To demonstrate this, ensure that modulation is set at the default
position 5 dB where it should be easy for the patient to hear the intensity
changes and set HL at 40 dB or higher.
Press Tone Switch to start the test. The HL setting on the display will change
each time the intensity is raised. Changing Frequency or Hearing Level will
stop the SISI test-restart by pressing the Tone Switch. TONE
The display will show the number of presentations, the patient's score and
the score as a percentage of presentations.
When the patient has been instructed and is ready to begin the test, set
modulation in position “1 dB” and press the Tone Switch to start the test
proper. The presentation counter will now count the number of presentations
to the patient and will automatically stop after 20 presentations. At the end of
the test the score may be read off on the display. Note That The
Modulation Cannot
Be Heard Via
Monitor Headset!
MIDIMATE 622 OPERATION MANUAL 8. Special Tests
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