Fig. 3.
An I-Aug neuron recorded in the rostral VRG.Top panel, The membrane potential (MP) begins to depolarize midway through expiration and reaches maximal depolarization during I. Action potentials are clipped; bottom trace is integrated phrenic nerve activity (∫Phr). Note that depolarization begins midway through expiration in this vagotomized rat. Bottom panel, Averaged IPSP (10 sweeps) evoked in the same neuron by electrical stimulation of the ipsilateral vagus nerve. Arrowindicates stimulus (Stim) artifact.Arrowhead indicates IPSP onset.