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. 2018 Feb 21;119(6):2052–2058. doi: 10.1152/jn.00034.2018

Fig. 3.

Fig. 3.

Second-by-second plots of the effect of DAMGO on the summed activity of the group III and IV afferents responsive to contraction. Open circles represent summed activity before injecting DAMGO, whereas closed squares represent summed activity after injecting 1 µg DAMGO into the superficial epigastric artery. “Freely perfused” rats show similar discharge rates for group III (A) and group IV (C) afferents before and after DAMGO. “Ligated” rats show reduced discharge rates for both group III (B) and group IV (D) afferents.