Abstracts

Cybernetics and Phisiology

Unlike the information logical-mathematical approach a motor control function of nervous system is studied. Signals from external environment and the organism's internal environment and organs are converted by the different types of receptors and afferent neurons into the similar impulse flows that spread at axons to central neurons. Interaction of the flows on different levels of "global network" forms control commands to motoneurons and effectors, ensuring the regulation of internal environment of organism and its goal-directed behaviour. In parallel with physiological studies, principles of muscle contraction control were studied on the working in the real scale of time electronic analogues of neurons and muscles in which functional properties and structure of interconnections correspond to neurophysiological data. Have shown the feedbacks from muscle receptors to motoneurons form homeostatic mechanism and patterns of impulses at closed loops are homeostated by the each element's properties. Nervous system behaves as adaptive automatic regulator steadied in a broad range of activities. By analysing parameters of isometric forces in tasks when subjects trace the current values of own efforts on the marks on a screen of monitor separately for the left and right hand, have found their unconscious behavior during performing the tests. Consciousness will be regained for changing of purposes of activity and correcting a movement. It confirms position, consciousness is originated as quality of holistic organism rather than function of only structured complexity of nervous system ensuring the adaptive possibilities of organism.

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©2001, Siberian Branch of Russian Academy of Science, Novosibirsk
©2001, United Institute of Computer Science SB RAS, Novosibirsk
©2001, Institute of Computational Techologies SB RAS, Novosibirsk
©2001, A.P. Ershov Institute of Informatics Systems SB RAS, Novosibirsk
©2001, Institute of Mathematics SB RAS, Novosibirsk
©2001, Institute of Cytology and Genetics SB RAS, Novosibirsk
©2001, Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk
©2001, Novosibirsk State University
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