Detection of spontaneous postsynaptic potentials

Piotr J. Franaszczuk,1,2 Gregory K. Bergey 1,3 and Pawel Kudela3

1 Maryland Epilepsy Center, Department of Neurology, University of Maryland School of Medicine and Medical Center, Baltimore, Maryland, 2Laboratory of Medical Physics, Institute of Experimental Physics, Warsaw University, Warsaw, Poland, 3Department of Physiology, University of Maryland School of Medicine, Baltimore, Maryland

August 22, 1995

The amplitude and time course of postsynaptic potentials (PSP) recorded by intracellular techniques contain information that allow different synaptic events to be detected. In the present paper an algorithm to detect spontaneous PSPs is described. The algorithm is based on computation of approximations of first and second derivatives of the signals. The method was tested on both computer simulated potentials and on experimental data recorded from dissociated mouse spinal cord neurons in tissue culture. The receiver operating characteristics (ROC) of the detection algorithm were computed. This method can be applied to investigations of dynamic changes in the activity of neural networks.


Full text published in: Comp. Biomed. Res., 28: 354-370, 1995.