OHSU

Barmack Lab

Recordings from a Purkinje cell in the cerebellar nodulus of an anesthetized rabbit.  Purkinje cell activity is modulated by sinusoidal vestibular stimulation about a longitudinal axis.  The upper right hand corner indicates how the rabbit, in this case a doll, is stimulated. Note how the Purkinje cell discharges two kinds of action potentials.  The low frequency action potential, termed a complex spike, discharges in phase with ipsilateral side down rotation.  The high frequency action potential, termed a "simple spike," discharges in phase with contralateral side down rotation.


barmfig_2

Microphotograph of a stellate cell recorded with a "loose patch" technique from the nodulus of the mouse cerebellum.  The cell was labeled with neurobiotin applied through the recording micropipette.