[Dependence of behavioral responses form during shake-off conditional reflex on laterality of the neocortex].

Pattern of discharges and interhemispheric interaction of parietal neurons (somatosensory presentation of the ear) were compared in interstimulus intervals before active shake-off and passive freezing reactions at stimuli after elaboration defensive avoid reflex. Before passive reactions in contrast to active right-side influences on left-side neurons were reinforced with delay to 100 ms, it result in appearence of asymmetry in interhemispheric interaction with right-side dominance. Before passive reactions intensity of delta-frequencies was increased in impulsation of single neurons and in interaction of cells pair. On this evidence the pattern of interhemispheric asymmetry before stimuli can be one of a number of factors, determinant active or passive form of behavioral reactions and also reflective of activation level of neocortex.