Figure 6 - Effect of stress on UES pressure.

From the following article

Upper esophageal sphincter

Ivan M. Lang

GI Motility online (2006)



This figure depicts the tracings of UES pressure, skin conductance, integrated frontalis EMG, and heart rate before and during a stressful listening task (at arrow). Note the anticipatory rise in UES pressure about 15 s before the stress begins. (Source: Cook et al.,15 with permission of the American Gastroenterological Association.)

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