关键词： Laboratories   Neurophysiology   Neurons   Nervous system   Stochastic processes   Microcomputers   Biology computing   Data processing   Nerve fibers   Frequency domain analysis  

ISBN: (纸本)None

摘要： The conceptualization of the ongoing neuroelectric activity as a stochastic time series has provided a framework for the utilization of the small computer in the laboratory. Laboratory computers provide extensive computational, filing, and control capabilities which are being incorporated into the routine investigation of neurophysiological phenomena. The computational procedures implemented include both time and frequency domain techniques. Equipment utilized includes special-purpose digital computers, general-purpose minicomputers, and minicomputers with graphics capability used as intelligent terminals to larger machines.

关键词： Current Activity  

摘要： This article reviews results on a learning theory that can be derived from simple psychological postulates and given a suggestive neurophysiological, anatomical, and biochemical interpretation. The neural networks described can discriminate, learn, simultaneously remember, and perform individually upon demand any number of space-time patterns of essentially arbitrary complexity. A general theorem expressing this fact is stated in the language of nonlinear functional-differential systems. Applications of the theory to various empirical problems are mentioned; e.g., serial learning, stimulus sampling, lateral inhibition, energy–entropy dependence, reaction time, transmitter production and release, spatiotemporal masking, operant and respondant conditioning, influences of under- or over-arousal on learning. © 1971 Taylor & Francis Group, LLC.

摘要： SUMMARY: Modern methods for electrical recording from the central nervous system of man go beyond the routine use of the scalp electroencephalogram (EEG).Evoked responses to sensory input can be used to investigate the subjective complaint of sensory deficit (for example, numbness, deafness).Much can be learned from sleep studies during which scalp EEG, neck electromyogram (EMG), extraocular movements, and EKG are monitored. These studies help to define sleep disturbances (for example, insomnia) and abnormalities in central nervous system (CNS) maturation (as in autistic children).In certain patients with significant neurological or psychiatric disease the routine scalp EEG may well be normal, whereas chronically implanted subcortical macroelectrodes show marked localized seizure activity. Both subcortical EEG and cellular discharges (units) can be monitored in patients with chronically implanted microelectrodes. This method permits exact localization and computer analysis of changes in cell *** these data (EEG, units, EMG, EKG, and so forth) can now be telemetered and, if necessary, transmitted long-distance by telephone line. This makes it possible to record from an unrestrained, freely moving subject in his natural environment, at home or at work.

关键词： Pulse Train   Relaxation Oscillator   Emitter Follower   Silicon Control Rectifier   Frequency Translation  

关键词： Anesthetics/pharmacology*   Animals   Cats   Central Nervous System/drug effects*   Consciousness*   Ethers/pharmacology   Hydroxybutyrates/pharmacology   Hydroxybutyrates/pharmacology   Nitrous Oxide/pharmacology   Pentobarbital/pharmacology   Piperidines/pharmacology   Sleep*  

关键词： Capacitive Loading   Grid Current   Feedback Amplifier   Zener Diode   Lower Anode