Sections of this document
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This document outlines how to provide VRA (Visual Reinforcement Audiometry) to young test subjects in the CMA 2 CSD Clinic Audiology Booths. Visual reinforcement audiometry (VRA) is a test that allows an audiologist to assess hearing in infants and toddlers too young for normal tests. VRA relies on behavioral conditioning to train very young kids to respond to sounds. It is designed for children aged 6 months to around 2 to 3 years old.
VRA equipment is available in Booth Pairs B & E. Motorized toys and video reinforcement are available in each of these booths.
Motorized Toy VRA
| Power on the 'VRA |
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Video VRA
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| SYSTEM VI' as well as the 'ANIMATION' switch | |
The 'LEFT' & 'RIGHT' switches control the respective motorized toys. If you hold a switch down, the motorized toy will continuously be active until you release the switch. |
Video VRA
For Video: Insert a DVD into the 'Audiometer CD/DVD Player' located in the rack & power on. | |
| Note: The 'VRA SYSTEM VI' must be powered on as well for the video to work in the next step. | |
The 'VIDEO STIMULUS SWITCH BOX' controls the video. If 'VIDEO OUTPUT ON' is selected, you should see a continuous image on both TV's (Test subject room) | |
If ' VIDEO OUTPUT FLASHED' is selected, then the TV's should be blank until the RED or WHITE (Left & RIGHT) paddle switches are pressed. If you hold a switch down, the image will continuously play until you release the switch. |
Troubleshooting
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