[Correlated activity of neurons in the sensorimotor cortices of the left and right hemispheres of rabbit brain during immobilization catatony].
Spike trains of individual neurons in the sensorimotor cortex detected in simultaneous multiunit records from the left and right rabbit brain hemispheres were analyzed in the baseline state, during immobilization ("animal hypnosis"), and after the termination of this state. The crosscorrelation analysis of pulse series revealed a relationship between the moments of spike generation by neurons of the left and right hemispheres. A significant correlation between the spike trains was considered as an interaction between the neurons (i.e., mutual influence of the cells on each other). It was shown that the strength of the effects of left-hemispheric neurons on cells of the right hemisphere could significantly vary (as compared to baseline) at any stage of the experiment and in any of the time periods analyzed. The strength of the effects activity by neurons of the right-hemispheres on cells of the left-hemispheres significantly changed only after the termination of the immobilization state and in substantially lower time limits.
D000200:Action Potentials; D000818:Animals; D046352:Freezing Reaction, Cataleptic / Q000502:physiology*; D007839:Functional Laterality / Q000502:physiology*; D007103:Immobilization; D009044:Motor Cortex / Q000166:cytology / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D011817:Rabbits; D013003:Somatosensory Cortex / Q000166:cytology / Q000502:physiology*