Abstract
The human pupillomotor pathway is considered as a model for neural interaction processes between signals elicited in a paired sense organ. A previous hypothesis is subjected to more rigorous tests applying monocular and simultaneous binocular as well as subsequent double pulse stimuli to limited central and peripheral areas of the retinas. The disturbing influence of light scattered by the dioptric media was suppressed by means of stationary background illumination. The basic assumption of the hypothesis that the interaction involves lateral inhibition of the shunting type and subsequent addition of the signal fluxes, could be verified. However, details of the previous hypothesis had to be modified on the basis of the recent findings. In addition, evidence was obtained for a long-range interaction of the pupillomotor signals within one retina and for two systems contributing independently to the light reflex.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literatur
Baker, F.H.: Pupillary response to double-pulse stimulation; a study of nonlinearity in the human pupil system. J. Ophtal. soc. Amer.53, 1430–1436 (1963)
Bouma, H.: Receptive systems. Mediating certain light reactions of the pupil of the human eye. Diss. Technische Hogeschool, Eindhoven (1965)
Clynes, M.: Computer dynamic analysis of the pupil light reflex. Proc. of the Third International Conference on Medical Electronics, 356–358. London 1960
DeMott, D.W., Boynton, R.M.: Retinal distribution of entoptic stray light. J. Opt. soc. Amer.48, 13–22 (1958)
Doesschate, J., Alpern, M.: Effect of photoexcitation of the two retinas on pupil size. J. Neurophysiol.30, 562–576 (1967)
Fugate, J.M.: A masking technique for isolating the pupillary response to focused light. J. Opt. soc. Amer.44, 771–779 (1954)
Furman, G.G.: Comparison of models for subtractive and shunting lateral inhibition in receptor-neuronfields. Kybernetik2, 257–274 (1965)
Lowenstein, O.: Alternating contraction anisocoria. A.M.A. Arch. Neurol. Psychiat.72, 742–757 (1954).
Lowenstein, O.: Pupillary reflex shapes and topical clinical diagnosis. Neurology5, 631–644 (1955)
Lowenstein, O., Loewenfeld, E.: Electronic pupillography. Arch. Ophtal.59, 352–363 (1958)
Mellwain, J.T.: Receptive fields of optic tract axons and lateral geniculate cells: peripheral extent and barbiturate sensitivity. J. Neurophysiol.27, 1154–1173 (1964)
Tiedt, N.: Die 24 Std-Rhythmik der Kinetik des Lichtreflexes der menschlichen Pupille. Pflüg. Arch.277, 458–472 (1963)
Varjú, D.: Der Einfluß sinusförmiger Leuchtdichteänderungen auf die mittlere Pupillenweite und auf die subjektive Helligkeit. Kybernetik2, 33–43 (1964a)
Varjú, D.: Pupillenreaktionen auf sinusförmige Leuchtedichteänderungen (Der Einfluß der relativen Phasenlage auf die mittlere Pupillenweite bei binocularer Modulation der retinalen Beleuchtungsstärke). Kybernetik2, 124–127 (1964b)
Varjú, D.: Nervöse Wechselwirkung in der pupillomotorischen Bahn des Menschen. I. Unterschiede in den Pupillenreaktionen auf monoculare und binoculare Lichtreize. Kybernetik3, 203–214 (1967a)
Varjú, D.: Nervöse Wechselwirkung in der pupillomotorischen Bahn des Menschen. II. Ein mathematisches Modell zur quantitativen Beschreibung der Beziehungen zwischen den Reaktionen auf monoculare und binoculare Lichtreize. Kybernetik3, 214–226 (1967b)
Author information
Authors and Affiliations
Additional information
Diese Arbeit enthält Versuchsergebnisse aus der Dissertation von P.Ihlenburg. Gegenwärtige Anschrift: Pädagogische Hochschule Reutlingen.
Die Durchführung der Versuche wurde durch eine Sachbeihilfe der Deutschen Forschungsgemeinschaft ermöglicht.
Rights and permissions
About this article
Cite this article
Ihlenburg, P., Varjú, D. Laterale Inhibition in der pupillomotorischen Bahn des Menschen. Biol. Cybernetics 18, 155–168 (1975). https://doi.org/10.1007/BF00326686
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00326686