Customizing The Stimulus - TDT Medusa4Z User Manual

The schedule tool was designed for quick edits you may want to make while testing or setting
up a new paradigm. For permanent edits to your stimulus, TDT recommends using SigGenRZ
(included with BioSigRZ installations) to modify the stimulus files (.sig) directly.

Customizing the Stimulus

SigGenRZ is a signal design software that enables you to create stimuli in a dialog box driven
environment. Most importantly, it allows most settings to be used as variables for your
experiments. All of the signals used in the BioSigRZ out-of-the- box experiment configurations
have been created in SigGenRZ. It is also a helpful tool for modifying aspects of the stimulus
that are not editable from within BioSigRZ.
To modify a file directly in the SigGenRZ software you will need to follow these basic steps:
1. Open the stimulus file (.sig) in SigGenRZ.
2. Make changes in the file.
3. Save the file or save the file with a new name.
4. Open the desired BioSigRZ configuration file (.acf).
5. Load or reload the stimulus file.
6. Save the BioSigRZ configuration file.
Opening the File
The stimulus files (.sig) for the BioSigRZ out-of-the-box experiment configuration are stored at:
C:/TDT/BioSigRZ/SIG/
For ABRs, there is one file for click stimuli and one for tone stimuli: Click.sig and TonePip.sig,
respectively.
It is generally a good idea to leave the original files unchanged and in place, but you can still
use and modify these files then rename the file.
To open the signal file you wish to modify:
1. Click the Start button on the Windows taskbar, point to Programs, point to TDT Sys 3, and
click SigGenRZ.
2. Select Open from the File menu.
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