Interaction between zones of the sensomotor cortex and hypothalamus during the formation of pain stress

Abstract

Cross-correlation analysis of the tension rhythm in various zones of the sensomotor cortex relative to the posterior hypothalamus showed that during pain stress there is an increase in the phase shifts accompanied by a decrease in the cross-correlation coefficients. These changes varied within the sensomotor cortex. At the focus of maximal activity for pain projections (posteriorly to the bregma) they were less marked than outside it, especially in the more anterior zones of the cortex (anteriorly to the bregma).