The purpose of this study was to explore learning and memory in the Hering-Breuer (HB) reflex simulated by a 60-second-long electrical stimulation of vagus nerve. The responses of phrenic nerve discharge to electrical stimulation (10-100 Hz, 20-60 muA, pulse duration 0.3 ms, for 60 s) of the vagus nerve were observed in rabbits. The results showed that 60-second-long stimulation of vagus nerve ...

To determine if electrical stimulation of autonomic nerves could excite nonadrenergic inhibitory motor pathways in the guinea pig respiratory system in vivo, we studied the effects of electrical stimulation of the cervical vagi and sympathetic nerve trunks on pressure changes (P(p)) within an isolated, fluid-filled cervical tracheal segment which reflected changes in trachealis muscle tone. We ...

An electrophysiological study has been made on the central relay pathway of the vago-vagal reflexes with special reference to those evoked by afferent stimulation of the abdominal vagus in cats under chloralose (50mg/kg i.v.) anesthesia. 1. Stimulation of the central cut end of the cervical or thoracic vagus nerve produced three mass reflex discharges in the contralateral cervical vagus nerve. ...