A PERSONAL COMPUTER-BASED VISUAL-EVOKED POTENTIAL STIMULUS AND RECORDING-SYSTEM

被引：22

作者：

BRADNAM, MS ^{[1
]}

EVANS, AL ^{[1
]}

MONTGOMERY, DMI ^{[1
]}

KEATING, D ^{[1
]}

DAMATO, BE ^{[1
]}

CLUCKIE, A ^{[1
]}

ALLAN, D ^{[1
]}

机构：

[1] WESTERN INFIRM & ASSOCIATED HOSP,TENNENT INST OPHTHALMOL,GLASGOW G11 6NT,SCOTLAND

来源：

DOCUMENTA OPHTHALMOLOGICA | 1994年 / 86卷 / 01期

关键词：

COMPUTER GRAPHICS; DIGITAL SIGNAL PROCESSING; ELECTRORETINOGRAM; PERSONAL COMPUTER; RECORDING SYSTEM; VISUAL EVOKED CORTICAL POTENTIAL;

D O I：

10.1007/BF01224630

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

A system for recording electroretinograms and visual evoked cortical potentials has been constructed with the use of a personal computer and a digital signal processing card. The system is based on widely available commercial hardware. It has been designed to be capable of performing routine visual electrophysiology as well as allowing the development of novel visual stimuli and signal detection techniques. The system enables both transient and steady-state stimulation rates. Pattern stimuli can be presented in pattern-reversal, pattern-onset, pattern-offset or motion-onset modes. In addition to conventional signal averaging, the digital signal processing card can also provide on-line Fourier analysis and is facilitating the development of adaptive filtering techniques for the detection of steady-state visual evoked cortical potentials. This versatile system is in regular clinical use for the measurement of electroretinograms and visual evoked cortical potentials.

引用

页码：81 / 93

页数：13

共 23 条

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