[Effect of early locomotor training on evoked potentials and the structural organization of the visual cortex dendrites of rats in ontogeny].
Obtained data witness to the fact that increased proprioceptive afferentation influenced by rat running in tretbun during 3-6 months beginning from 1 month age arouses statistically true decrease of latencies, as well as excitation reduction cycles of initial responses of visual cortex on light-flash pairings. Increase of functional activity is registrated better on indices of excitation-reduction cycles, than on latencies of initial responses. Functional reorganization of rat visual cortex correlates with density changes of impregnated dendritic spines. It has been morphologically established that already 3 month-motor training results in statistically true density increase of dendritic spines on neurons of layers II+III and layer V complex. This can be interpreted as indication of increase of afferent flow to neurons of superior and inferior layers of visual cortex.
D000375:Aging; D000818:Animals; D003712:Dendrites / Q000502:physiology* / Q000648:ultrastructure; D005071:Evoked Potentials; D008297:Male; D009048:Motor Skills / Q000502:physiology*; D010775:Photic Stimulation; D051381:Rats; D011930:Reaction Time / Q000502:physiology; D014793:Visual Cortex / Q000254:growth & development / Q000502:physiology* / Q000648:ultrastructure
Vliianie ranneĭ lokomotornoĭ trenirovki na vyzvannye potentsialy i strukturnuiu organizatsiiu dendritov zritel'noĭ kory krys v ontogeneze.