Journal of Neurophysiology, Vol 43, Issue 1 151-164, Copyright © 1980 by APS

ARTICLES

Multiple-unit activity evoked in dorsal cap of inferior olive of the rabbit by visual stimulation

N. H. Barmack and D. T. Hess

1. Microelectrode recordings of multiple-unit activity were made from the dorsal cap of the inferior olive of anesthetized and unanesthetized rabbits during vestibular and optokinetic stimulation. 2. A large field potential could be evoked in the dorsal cap by photic stimulation of the contralateral eye when the rabbit was anesthetized with sodium pentobarbital or chloralose-urethan. This field potential could not be evoked in rabbits that were anesthetized with halothane or in unanesthetized rabbits. 3. Dorsal cap neurons were maximally excited by large, contrast-rich stimuli presented to the contralateral eye, moving in the posterior-anterior direction at a velocity of 1--2 degrees/s. The discharge rate of dorsal cap neurons was decreased by stimuli moving in the opposite direction. 4. The activity of dorsal cap neurons was not modulated by vestibular stimulation when visual inputs were excluded. 5. Dorsal cap neurons were sensitive to retinal slip velocity and higher derivatives of optokinetic stimulation. Their activity was related to eye movements only when the eye movements affected movement of optokinetic images on the retina.

This article has been cited by other articles:

				R. Soetedjo, Y. Kojima, and A. F. Fuchs Complex Spike Activity in the Oculomotor Vermis of the Cerebellum: A Vectorial Error Signal for Saccade Motor Learning? J Neurophysiol, October 1, 2008; 100(4): 1949 - 1966. [Abstract] [Full Text] [PDF]

				B. Winkelman and M. Frens Motor Coding in Floccular Climbing Fibers J Neurophysiol, April 1, 2006; 95(4): 2342 - 2351. [Abstract] [Full Text] [PDF]

				N. H. Barmack and V. Yakhnitsa Cerebellar Climbing Fibers Modulate Simple Spikes in Purkinje Cells J. Neurosci., August 27, 2003; 23(21): 7904 - 7916. [Abstract] [Full Text] [PDF]

				N. S. C. Price and M. R. Ibbotson Direction-Selective Neurons in the Optokinetic System With Long-Lasting After-Responses J Neurophysiol, November 1, 2002; 88(5): 2224 - 2231. [Abstract] [Full Text] [PDF]

				M. P. Arts, C. I. De Zeeuw, J. Lips, E. Rosbak, and J. I. Simpson Effects of Nucleus Prepositus Hypoglossi Lesions on Visual Climbing Fiber Activity in the Rabbit Flocculus J Neurophysiol, November 1, 2000; 84(5): 2552 - 2563. [Abstract] [Full Text] [PDF]

				D. A. Nicholson and J. H. Freeman Jr Developmental Changes in Eye-Blink Conditioning and Neuronal Activity in the Inferior Olive J. Neurosci., November 1, 2000; 20(21): 8218 - 8226. [Abstract] [Full Text] [PDF]

				H. Fushiki and N. H. Barmack Topography and Reciprocal Activity of Cerebellar Purkinje Cells in the Uvula-Nodulus Modulated by Vestibular Stimulation J Neurophysiol, December 1, 1997; 78(6): 3083 - 3094. [Abstract] [Full Text] [PDF]

				C. I. De Zeeuw, S.K.E. Koekkoek, D.R.W. Wylie, and J. I. Simpson Association Between Dendritic Lamellar Bodies and Complex Spike Synchrony in the Olivocerebellar System J Neurophysiol, April 1, 1997; 77(4): 1747 - 1758. [Abstract] [Full Text] [PDF]