[The design and application of a computer aided system for measuring the electroencephalographic effect].
A new computer system (including hardware and software design) was developed which could be used to record and analyze the electroencephalographic (EEG) signal. The EEG analog signal of four channels was first digitized at a sampling rate of 960 Hz through analog to digital converter and then stored in the Sun-386 computer for off-line analysis. Various EEG effect parameters were then generated from the aperiodic waveform analysis files, i.e., total number of waves/s and total voltage/s in various frequency ranges 1-3, 4-7, 4-11, and 12-30 Hz. From various EEG parameters derived from computer system, the total number or voltage in 12-30 Hz (TNW12-30, TV12-30) was considered as the best descriptor of EEG effect.
Lu
J
J
Department of Clinical Pharmacology of Jinling Hospital, Nanjing 210002.
Yang
Y
Y
Chen
G
G
D014151:Anti-Anxiety Agents / Q000494:pharmacology; D003975:Diazepam / Q000494:pharmacology; D004569:Electroencephalography / Q000187:drug effects*; D004867:Equipment Design; D006801:Humans; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012985:Software Design
D014151:Anti-Anxiety Agents; D003975:Diazepam