Title :
A method for real-time processing to study recovery functions of evoked potentials
Author :
Nakamura, Masatoshi ; Shibasaki, Hiroshi ; Nishida, Shigeto ; Neshige, Ryuji
Author_Institution :
Dept. of Electr. Eng., Saga Univ., Japan
fDate :
7/1/1990 12:00:00 AM
Abstract :
A method for evaluating the recovery function of the evoked potential (EP) in real time is reported. To record the test response of paired stimulation, the responses to alternate presentation of an unpaired stimulus and several kinds of paired stimuli with various interstimulus intervals were averaged, and subtraction was made in real time. The EPs obtained by the proposed method were proved to be accurate even under changing recording conditions. A formula for computing the recovery correlation factor was derived as a measure of the recovery function of the recorded EP, and the recovery curves for three subjects were obtained.
Keywords :
bioelectric potentials; signal processing; computation formula; evoked potentials recovery functions; interstimulus interval; paired stimulation; real-time processing method; recording conditions; recovery correlation factor; test response; Admittance measurement; Current; Electrodes; Frequency; Impedance; Interference; Moisture measurement; Nerve fibers; Skin; Testing; Adult; Electroencephalography; Evoked Potentials; Humans; Reference Values; Signal Processing, Computer-Assisted; Time Factors;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
