An Instrument for Separation of Multiple-Unit Neuroelectric Signals

An instrument for real-time separation of interleaved neuronal spike trains has been developed. Amplitude of the spike at two selectable time points provides the criteria for separating spikes into as many as nine different classes. The amplitude-time windows are displayed on an oscilloscope along with the spike for adjustment purposes. The system is mainly constructed with integrated circuits for low cost and ease of fabrication.