User`s manual

Cerebus® User’s Manual
Revision 13.00 / LB-0028 Page 52
Signal-to-Noise Ratio
Signal-to-Noise Ratio (SNR) displays the running amplitudes (µV) of the signal, noise, and signal-to-noise ratio for
units on a particular channel. It also displays the signal-to-noise ratio as a function of time, which allows signal
quality to be monitored across time. This information can be saved as a tab-delimited text file and opened in Excel
or a compatible program for further analysis. In the example below the SNR for elec11 unit 3 is 9.50 meaning that
the signal is 9.5 times bigger than the noise.
Figure 46 - Signal to Noise Ratio
Neural Modulation
Neural Modulation displays changes over time of the firing frequency. The Modulation Index covers a range of 0 to
12.0 but a range of 2-5 is considered normal.
Figure 47 - Neural Modulation