A Real-Time Cross Correlator for Neurophysiological Research

An instrument for computing correlograms of neuronal spike trains is described. The special purpose nature of the instrument permits sufficient computation speed to allow real-time display of compiling correlograms. Such capability greatly extends the user's observation power during the important phase of data collection from multiple neural units. Due to its modular design, other useful statistical analysis programs (PST, Interval histograms) can be easily designed and incorporated.