“…The more consistent occurrence of this rebound in the vagally innervated pouches supports this general hypothesis. The possibility that the inhibition was due to the presence of specific inhibitory fibres in the vagus nerve, as was originally postulated by Pavlov (1910), remains open and indeed rather likely as the importance of the presence of the vagus nerves in the production of this and various other types of inhibition becomes evident (Hood & Code, 1951 It has been amply demonstrated that the presence of acid in the duodenum reduces gastric motility and slows its emptying (Thomas, 1931;Quigley, 1942). In our study, evidence of impaired gastric emptying occurred during the exrperiments involving feeding of meat.…”