Noradrenaline modulation of the responses of the cerebellar Purkinje cell to afferent synaptic activity

Br J Pharmacol. 1976 Aug;57(4):603-5. doi: 10.1111/j.1476-5381.1976.tb10391.x.

Abstract

Noradrenaline, applied by microiontophoresis to rat cerebellar Purkinje neurones, selectively depressed spontaneous neuronal discharge. Simple spike and complex spike excitations, evoked by stimulation of the mossy and climbing fibres, were relatively preserved during the inhibition of spontaneous activity, and the number of full-sized action potentials in the complex spike increased. Inhibition mediated by the basket and stellate cells was augmented. Thus, relative to the change in spontaneous activity, noradrenaline increased the responsiveness of the Purkinje cell to afferent input.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Action Potentials / drug effects
  • Animals
  • Evoked Potentials / drug effects
  • Neurons, Afferent / drug effects
  • Neurons, Afferent / physiology
  • Norepinephrine / pharmacology*
  • Purkinje Cells / drug effects*
  • Purkinje Cells / physiology
  • Rats

Substances

  • Norepinephrine