Nerve-Express automatically recognizes 74 states of the ANS that represent different combinations of relationship between levels of SNS and PSNS activities and variations in their balance. Nerve-Express then graphs the Parasympathetic activity on the horizontal or x-axis and the sympathetic activity on the vertical or y-axis. The intersection point of the Sympathetic and the Parasympathetic systems is the point of Autonomic Balance (Fig. 3).
Fig. 3
To the right of and above this balance point, Nerve-Express displays an area of increased Parasympathetic and Sympathetic activities in 4 gradations. Decreases in PSNS and SNS activities are shown to the left and below the balance point. Each of the 74 states of the ANS is subdivided into nine categories:
Category 1. PSNS prevalence with the average level of SNS activity is shown with 4 points:
Point 1 represents a slight PSNS prevalence.
Point 2 represents a moderate PSNS prevalence.
Point 3 represents a significant PSNS prevalence.
Point 4 represents a sharp PSNS prevalence.
Category 2. A simultaneous increase in both the PSNS and SNS activity with different relationships is shown with 16 points.
Category 3. SNS prevalence is shown with 4 points.
Category 4. A PSNS decrease with a SNS increase is shown with 16 points.
Category 5. A PSNS decrease with the average level of SNS activity represented by 4 points.
Category 6. A general decrease in both SNS and PSNS activities is shown with 16 points.
Category 7. A point at zero value on the coordinate system indicates ANS balance.
Category 8. SNS decrease with average level of PSNS is shown with 4 points.
Category 9. Increase in PSNS with decrease in SNS is shown with 9 points.
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