Fig. 2.

Effect of SMTC on the mental stress-induced increase in coronary blood flow (CBF). A: percent change in CBF with the Stroop test during saline infusion (Stroop), SMTC, and the Stroop test during SMTC infusion. Paired t-test was between CBF during the preceding baseline and intervention. *P < 0.01 compared with the preceding baseline. B: absolute values for CBF under the different study conditions. *Significant interaction between groups by repeated-measures ANOVA. Values are means ± SE; n = 11.