Getting Help - TDT Medusa4Z User Manual

Random jumps in signal level
Cause: An animal that is awake or not fully sedated
You can also view a running average of the ABR responses.
No ABR response at any SGI
Cause: A speaker problem. Check the speaker by opening the door during an audible frequency or click SGI to
listen for the stimulus.
Cause: A hearing impaired animal. If using a tone, switch to a click to increase the odds of getting a response
(tests over a broad spectrum of frequencies).
Cause: A deaf animal. Try the same test again with a normal hearing animal.
Noisy signal
Cause: A noisy environment. Run a saline test as described above.

Getting Help

If you are unable to diagnose the noise problem, contact TDT for assistance at
support@tdt.com
When you contact us be prepared to answer questions such as, what frequencies you're
testing, what subject and anesthetic you're using, and when the system was last calibrated. We
may also ask you for data, screenshots, or photos of your experimental setup. We may also
ask you to participate in a remote desktop session, which requires an Internet connection to
your experiment PC running BioSigRZ software.
or +1.386.462.9622.
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