[Computer analysis of evoked field potentials in hippocampal slice].
A microcomputer system for the processing of evoked field potentials of brain slices was developed on the IBM PC-AT microcomputer. In the system, a 385-point finite impulse response (FIR) filter was designed and fast Fourier convolution algorithm was adopted to attain both high quality of filtering and high efficiency of calculation. Also a method for wave peak recognition by analysing waveform slope was established and an interface circuit was designed for the automatic control of the FM tape recorder by the computer. As a result, automated parameter measurement of epileptiform activity recorded from hippocampal slices was successfully realized with high accuracy.
Huang
L
L
Yang
S
S
Luo
W
W
D000818:Animals; D004558:Electric Stimulation; D005071:Evoked Potentials; D006624:Hippocampus / Q000502:physiology*; D008838:Microcomputers; D051381:Rats; D012815:Signal Processing, Computer-Assisted; D012985:Software Design