[Effect of the background activity of a network of excitatory neuron-like elements on the conduction of excitation].
Calculation on a mathematical model showed that for distortion-free conduction of excitation through a net of excitatory elements (EEs) a system is necessary of optimum correlation of EEs parameters, links between them and of external influences. When these parameters are deviated from their optimum values, excitation is conducted through the net either with attenuation or with intensification (as a result of divergence and convergence of the influences of the previous layer on the following one). The background activity which is above threshold of impulse activity emergence and which is created by common effects on all EEs, prevents the revealing of the input EEs activation at the net output. Near-threshold tonic net activation facilitates excitation conduction through it. Periodic net activity facilitates excitation conduction through it only under optimum correlation of its parameters and the time of its conduction through the net. At disturbance of this condition, excitation conduction through the net is limited.
Shul'gina
G I
GI
Ponomarev
V N
VN
Rezvova
I R
IR
Frolov
A A
AA
D000818:Animals; D002540:Cerebral Cortex / Q000502:physiology; D003198:Computer Simulation; D008433:Mathematics; D008564:Membrane Potentials; D008959:Models, Neurological; D009431:Neural Conduction; D009434:Neural Pathways / Q000502:physiology; D009474:Neurons / Q000502:physiology*
Vliianie fonovoĭ aktivnosti seti iz vozbuditl'nykh neĭronopodobnykh élementov na provedenie vozbuzhdeniia.