Abstract
Extracellular unit recordings were derived from the cat sensorimotor cortex by means of tungsten microelectrodes. Evidence was obtained for the value of time-locking of impulses: a critical time interval was demonstrated as essential for modifications caused in putaminally-evoked cortical local field potentials by preconditioning stimuli delivered to the nucleus entopeduncularis. A correlation analysis was carried out on responses of neurones of the sensorimotor cortex to stimulation of the pyramid or of sensory area S 1. Differentiation was made between common input and sequential firing operational conditions. Logics of and-gate and of conditional or-gate were recognized. Micro-circuitry was offered in each case. Evidence was offered for the importance of collaterals in such actions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bishop,P.O., Burke,W., Davis,R.: Single unit recording from antidromically activated optic radiation neurones. J. Physiol. (Lond.) 162, 432–450 (1962).
Blum,B., Feldman,B.: A micro-drive for the independent manipulation of four microelectrodes. IEEE Trans. Biomed. Eng. 12, 121–122 (1965).
Blum,B.: Some network characteristics of cerebello-cortical system — A study in the cat. Int. J. Neurol. 7, 201–212 (1970).
Blum,B.: Characteristic of driving of units in the sensorimotor cortex by center median nucleus and its inhibition by entopeduncular nucleus. Life Sci. 9, 1389–1396 (1970).
Blum,B., Gitter,S., Godel,V., Dali,A., Stein,R.: Characterization of visual system network. XXV Intnl. Cong. Physiol. Sci. Munich, July (1971) (abstract).
Blum,B.: Rates of nerve impulse propagation as output characteristics — A study on pyramidal tract neurones of cat and monkey. Kybernetik 10, 220–222 (1972).
Chung,S. K., Raymond,S. A., Lettvin,J.Y.: Multiple meaning in single visual units brain. Behavior and Evolution 3, 72–101 (1970).
Darian-Smith,I., Yokota,T.: Corticofugal effects on different neuron types within the cat's brain stem activated by tactile stimulation of the face. J. Neurophysiol. 29, 185–206 (1966).
Fuortes,M.G.F.: Repetitive activity of excitable membranes. Proc. XXV Intnl. Cong. Physiol. Sci. Munich 8, 41 (1971).
Gerstein,G.L.: Functional association of neurons: detection and interpretation. In: The neurosciences: 2nd Study Program, Schmitt,F.O. (Ed.). New York: Rockefeller Univ. Press 1970.
Griffith,J.S., Horn,G.: Functional coupling between cells in the visual cortex of the unrestrained cat. Nature (Lond.) 199, 876–895 (1963).
Grüsser,O.J., Hellner,K. A., Grüsser-Cornellis,U.: Die Informationsübertragung in afferenten visuellen System. Kybernetik 1, 175–192 (1962).
Hall,J.L.: Binaural interaction in the accessory superior olivory nucleus of the cat. J. Accoust. Soc. Amer. 37, 814–823 (1965).
Lorente de No, R.: Transmission of impulses through cranial nerve nuclei. J. Neurophysiol. 2, 402–464 (1939).
McCulloch,W.S.: Embodiments of mind. Cambridge, Mass: M.I.T. Press, 1965.
Möller,A.R.: Periodicity coding in the peripheral auditory system. In: Excitatory synaptic mechanisms. Anderson,P., Jansen,J.K.S. (Eds.). Oslo: Universitetsforlaget 1970.
Mugnaini,E.: Neurones as synaptic targets. In: Excitatory synaptic mechanisms, Proc. 5th Intnl. Meet. Neurobiologists. 149–169 Anderson,P., Jansen,J.K.S. (Eds.). Oslo: Universitatesforlaget 1970.
Nicoll,R.A.: Recurrent excitation of secondary olfactory neurones: A possible mechanism for signal amplification. Science 171, 824–826 (1971).
Reichardt,W.E.: The insect eye as a model for analysis of uptake, transduction, and processing of optical data in the nervous system. In: The neurosciences, 2nd Study Program, Schmitt,F.O. (Ed.). New York: Rockefeller Univ. Press 1970.
Segundo,J.P.: Communication and coding by nerve cells. The neurosciences, 2nd Study Program, Schmitt,F.O. (Ed.). New York: Rockfeller Univ. Press 1970.
Sholl,D.A.: The organization of the cerebral cortex. New York: Wiley 1956.
Stein,R.B.: The role of spike trains in transmitting and distorting sensory signals. The neurosciences, 2nd Study Program, Schmitt,F.O. (Ed.). New York: The Rockefeller Univ. Press 1970.
Szentagothai,J.: The possible histological basis of inhibition. Progr. Brain Res. 22, 148–160 (1967).
Wall,P.D.: Repetitive discharge of neurones. J. Neurophysiol. 22, 305–320 (1959).
Enger,P.S., Jansen,J.K.S., Walløe,L.: A biological model of excitation of a second order secondary neurone. Kybernetik 6, 141–145 (1969).
Whitfield,I.C.: Neural integration and pitch perception. In excitatory synaptic mechanisms. Anderson,P., Jansen,J.K.S. (Eds.). Oslo: Universitetsforlaget 1970.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Blum, B. Logic operations in the central nervous system-implications for information transfer mechanisms. Kybernetik 11, 170–174 (1972). https://doi.org/10.1007/BF00270674
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00270674