Fig. 2.

Effect of acute and chronic repeated restraint stress on postprandial gastric motility (A) and motility index (B). Acute restraint stress significantly attenuated gastric contractions during the restraint stress loading. The reduced gastric motility in response to acute stress was gradually restored following the repeated stress loading (at day 2 and day 4). On day 5, restraint stress had no more inhibitory effects on gastric contractions (B) (n = 5; *P < 0.05, **P < 0.01).