海马脑片诱发场电位的计算机分析  

Computer Analysis of Evoked Field Potentials in Hippocampal Slice

作　　者：黄隆庆[1] 杨世若[2] 罗万敏[3] 

机构地区：[1]华西医科大学口腔医学院 [2]华西医科大学生理学教研室神经生理研究室 [3]成都科技大学计算机辅助设计研究室

出　　处：《华西医科大学学报》1993年第2期171-175,共5页Journal of West China University of Medical Sciences

摘　　要：作者以IBM PC-AT微型计算机为基础,建立了分析脑片诱发场电位的计算机系统。在该系统作者设计了385点有限长单位脉冲响应数字滤波器,并运用高效的快速傅立叶卷积算法,以获得高质量滤波与运算效率。还设计了波形自动测量的峰值判读法及磁带记录仪的计算机控制接口。结果实现了对海马脑片诱发痫样放电的高精度自动化参数测量。A microcomputer systemfor the processing of evoked field poten-tials of brain slices was developed on theIBM PC-AT microcomputer. In the system,a 385-point finite impulse response (FIR)filter was designed and fast Fourier con-volution algorithm was adopted to attainboth high quality of filtering and highefficiency of calculation. Also a methodfor wave peak recognition by analysingwaveform slope was established and aninterface circuit was designed for theautomatic control of the FM tape recorderby the computer. As a result, automatedparameter measurement of epileptiformactivity recorded from hippocampal sliceswas successfully realized with high accu-racy.

关 键 词：诱发电位 海马 计算机 癫痫 

分 类 号：R338.26[医药卫生—人体生理学]