Electroencephalogram analysis provides a lot of valuable information on brain activity, of particular interest in studies on:
- Drug effects on the central nervous system in Safety Pharmacology
- Therapeutic properties of a new drug in Discovery Studies
- EEG rhythms in sleep studies
Spectral analysis of the EEG signal, with EEG10a, provides Delta, Theta, Alpha, and Beta bands on user-defined successive epochs. It computes absolute / relative power for each defined EEG rhythm. A filter bank is applied to the input signal and the band powers are measured in real time.
The figure above shows collected EEG signal, with spectra, alpha and beta bands computed in real-time by EEG10a.
Peripheral nervous systems can be investigated, for nerve conduction studies for example, through electromyogram (EMG) collection and analysis.
In NOTOCORD-hem™ EMG activity is analyzed with NVC31. The module removes the offset, rectifies the signal and calculates an activity index.
The figure above shows the EMG signal together with rectified EMG and EMG activity.