Semiotics of the main parameters of SCP

Monopolar recorded values ​​of SCP in the five above-mentioned leads (F – lower frontal, C – central, O – occipital, Td – right and Ts – left temporal), hereinafter referred to as SCP in one of the indicated leads. The value of SCP indicates in the general case how much the constant potential in the corresponding area differs from the constant potential on the wrist. Positive values ​​of SCP, which are usually recorded in humans, are associated with a more acidic reaction of brain blood compared with peripheral blood. An increase in SCP in relation to the background level indicates a decrease in the pH in the blood of the corresponding region, which is normally associated with an increase in energy metabolism and functional activity of this part of the brain. In cerebral pathology, the increase in AMR reflects the degree of acidosis of various genesis. The averaged SCP is the average of the five leads of the SCP. Since SCP is summed up in monopolar leads, this indicator reflects the potential difference between the average potential of the head and hand. The averaged SCP has the same features as the SCP in a monopolar lead, only we are talking about an integral (averaged) assessment of brain energy metabolism. The averaged soft starter is referred to as {soft starter }.

Local SCP – differences between the value of the soft starter in any lead and the average soft starter. Local SCP normally reflects the intensity of energy processes in various areas of the head relative to the average level of cerebral energy exchange. In the future, local SCP in five standard leads are designated as .

SCP gradients – differences between monopolar recorded SCP values. Additional experiments showed that these differences are numerically equal to the potential values ​​in the bipolar leads between the corresponding areas. Among the SCP gradients, the most important is the interhemispheric gradient (potential difference between the right and left temporal leads). In some cases, the frontal gradient (the difference in SCP between the frontal and central leads located along the sagittal line) and the occipital gradient (the difference in the SCP between the sagittally located central and occipital leads) are of some interest. Gradients of SCP, in essence, characterize the differences between pH in the corresponding areas of the brain.

Four types of indicators: AMR in monopolar leads, averaged AML, local AML, gradients of AML carry different information about cerebral energy processes that differ in their topography and degree of locality.

local_offerevent_note September 7, 2019

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