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Cephalic Vascular Recording Upon SPG Stimulation

Autonomic Technologies, Inc. · 2011
ClinicalTrials.gov · Datasets · License: Public Domain · 2011
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Hypothesis: Stimulation of the SPG at high frequencies (50-200Hz) is believed to cause a physiological parasympathetic block which decreases VMCA oxyHb concentration and cephalic vessel diameter. Stimulation of the SPG at low frequencies (1-60 Hz)is believed to cause a physiological parasympathetic upregulation which increases VMCA, oxyHb concentration and cephalic vessel diameter.
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