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Fig. 6 | The Journal of Headache and Pain

Fig. 6

From: Advantages of imaging photoplethysmography for migraine modeling: new optical markers of trigemino‐vascular activation in rats

Fig. 6

Dynamics of changes in parameters of systemic hemodynamics and PPG due to CCW electrical stimulation. Each box plot is a composite of indicators of a specific parameter for a 30-minute interval before (baseline stage) and after each of three infusion steps of the testing substance. The black, red and blue boxes correspond to the saline, valproate and sumatriptan infusion group, respectively. Green stars indicate statistical differences in relation to the baseline stage, whereas green grids represent differences between testing substance and saline. One symbol corresponds to p < 0.05, two of them correspond to p < 0.01, and three of them correspond to p < 0.001. All statistical significance is indicated with Bonferroni corrections for multiplicity

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