Abstract
Evoked potentials arising in the rabbit superior colliculus in response to punctiform stimulation of the receptive field were studied. This response has only negative polarity at the focus of maximal activity and does not exhibit reversal of the potential which is a characteristic feature of the response to diffuse stimulation. The evoked potential was recorded at depths of between 0.1 and 0.9–1.0 mm from the collicular surface, corresponding to the stratum griseum superficiale. The response disappeared when the stimulating spot was shifted through 4–6° away from the optical position. It is suggested that evoked potentials to punctiform stimulation can give more complete information on the location of different synapses.
Similar content being viewed by others
Literature cited
N. V. Dubrovinskaya, "Relations between components of the evoked potential in different structures of the rabbit superior colliculus," Zh. Vyssh. Nerv. Deyat.,14, 86 (1964).
A. M. Mass, "Organization of the afferent input in the rabbit superior colliculus," Neirofiziologiya,9, 281 (1977).
A. Ya. Supin, "Visual cortical evoked potentials in rabbits during punctiform stimulation of the receptive field," Fiziol. Zh. SSSR,59, 385 (1973).
G. H. Bishop and J. O'Leary, "The polarity of potentials recorded from the superior colliculus," J. Cell. Physiol.,19, 289 (1942).
S. Ramon y Cajal, Histologie du Système Nerveux de l'Homme et des Vertébrés, Vol. 2, Paris (1911).
J. A. Freeman and C. Nicholson, "Experimental optimization of current source-density technique for anuran cerebellum," J. Neurophysiol.,38, 369 (1975).
D. J. B. Kerr and K. N. Sevenirante, "The projection of the visual field on the superior colliculus of the rabbit," J. Physiol. (London),168, 43P (1963).
M. Klee and W. Rall, "Computed potentials of cortically arranged population of neurons," J. Neurophysiol.,40, 647 (1977).
C. L. Li, C. Cullen, and H. Jasper, "Laminar microelectrode studies of specific somatosensory cortical potentials," J. Neurophysiol.,19, 111 (1956).
L. H. Mathers, "Retinal and visual cortical projection to the superior colliculus of the rabbit," Exp. Neurol.,57, 698 (1977).
J. T. McIlwain, "Topographic relationships in projection from striate cortex to superior colliculus of the cat," J. Neurophysiol.,36, 690 (1973).
U. Mitzdorf, and W. Singer, "Prominent excitatory pathways in the cat visual cortex (A17 and A18): a current source density analysis of electrically evoked potentials," Exp. Brain Res.,33, 371 (1978).
C. Nicholson and J. Freeman, "Theory of current source-density analysis and determination of conductivity tensor for anuran cerebellum," J. Neurophysiol.,38, 356 (1975).
S. G. Pickering and W. J. Freeman, "Superior colliculus response in anesthetized cat: space-time characteristics," Am. J. Physiol.,214, 152 (1968).
A. J. Sefton, "The electrical activity of the anterior colliculus in the rat," Vision Res.,9, 207 (1969).
I. Sumitomo and Y. Hayashi, "Electrical responses of cat superior colliculus in reticular formation activity and during natural sleep-wakefulness cycle," Tohoku J. Exp. Med.,91, 13 (1967).
I. Takahashi, T. Ogawa, and T. Takimori, "Intracellular studies of rabbit superior colliculus," Brain Res.,123, 170 (1977).
Additional information
A. N. Severtsov Institute of Evolutionary Morphology and Ecology of Animals, Academy of Sciences of the USSR, Moscow. Translated from Neirofiziologiya, Vol. 11, No. 5, pp. 441–450, September–October, 1979.
Rights and permissions
About this article
Cite this article
Mass, A.M., Supin, A.Y. Spatial configuration of rabbit superior collicular evoked response to punctiform afferent stimulation. Neurophysiology 11, 325–333 (1979). https://doi.org/10.1007/BF01062995
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01062995