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  • 1
    Electronic Resource
    Electronic Resource
    Inhibitory Synapses on Somas of Purkinje Cells in the Cerebellum (1963)
    [s.l.] : Nature Publishing Group
    Nature 199 (1963), S. 655-656 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the hippocampal cortex a very powerful postsynaptic inhibition is produced by synapses concentrated on the sonias of the pyramidal cells; hence it has been concluded that these synapses belong to the basket cells, which have extensive axon ramifications that terminate exclusively on the cell ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/199655a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Strychnine-Resistant Central Inhibition: Strychnine-resistant Inhibition in the Brain (1963)
    [s.l.] : Nature Publishing Group
    Nature 200 (1963), S. 843-845 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the spinal cord it has been shown that strychnine very effectively depresses the activity of the postsynaptic inhibitory synapses which are formed by a variety of pathways converging on motoneurones1?4. Strychnine depresses the inhibitory action of the olivo-cochlear bundle on sensory fibre ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/200843a0
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  • 3
    Electronic Resource
    Electronic Resource
    Strychnine-Resistant Central Inhibition: Strychnine and Cortical Inhibition (1963)
    [s.l.] : Nature Publishing Group
    Nature 200 (1963), S. 845-846 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN view of the potent depressant action of strychnine on the postsynaptic hyperpolarizing inhibitory potentials of spinal motoneurones1, it has been assumed that the enhancement of evoked potentials of the cerebral cortex which is produced by topically administered strychnine is associated with the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/200845a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Excitation of Cerebellar Neurones by Acetylcholine (1963)
    [s.l.] : Nature Publishing Group
    Nature 200 (1963), S. 579-580 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the series of experiments reported here extracellular spike potentials have been recorded from individual neurones in the vermis cerebelli of cats which were anses-thetized with pentobarbital sodium (3540 mg/kg, intra-peritoneally). A small pressure plate, which was occasionally surrounded by ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/200579b0
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  • 5
    Electronic Resource
    Electronic Resource
    Pyramidal control of fusimotor neurons supplying extensor muscles in the cat's forelimb (1969)
    Springer
    Experimental brain research 9 (1969), S. 96-115 
    Details
    ISSN: 1432-1106
    Keywords: Pyramidal tract ; Fusimotor Neurons ; Forelimb ; Extensor ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of cortical stimulation upon dynamic and static sensitivities of the sensory endings in muscle spindles have been analyzed. 63 single afferent fibers from the muscle spindles of the forelimb extensors: M. flexor carpi radialis, M. flexor digitorum communis and M. palmaris longus were isolated in dorsal root filaments in 20 adult cats under chloralose-urethane anesthesia. They were identified by their response to stimulation of the median nerve. 1. Surface anodal repetitive stimulation of the anterior sigmoid gyrus was found to produce an enhancement of static response of single Group II fibers. Effective area was localized in a restricted region which corresponded to the forelimb motor area. The effect was obtained without any concomitant muscle contraction. Similarly, the stimulation increased the resting discharges of the Group Ia fibers from the same muscles. 2. Stimulation of the same area in the cerebral cortex was also found to increase the dynamic sensitivities of primary sensory endings. The increase was revealed by an enhancement of initial burst discharge during relaxation period of a twitch contraction caused by median nerve stimulation. 3. These results indicate that stimulation of the forelimb motor area has a facilitatory effect on both the static and dynamic fusimotor neurons innervating the muscle spindles of the test muscles. 4. The effects were reproduced in pyramidal tract preparations in which the brainstem was cut either at the level of the midbrain except for the cerebral peduncle or at the level of caudal medulla oblongata sparing the pyramid. 5. The threshold for the fusimotor effects was less than 1.3–1.5 times threshold of the pyramidal tract discharge, when the best spot for eliciting the fusimotor response was chosen. These results indicate that the effects of cortical stimulation are mainly mediated by the fast conducting pyramidal tract fibers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238324
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  • 6
    Electronic Resource
    Electronic Resource
    Pyramidal activation of interneurones of various spinal reflex arcs in the cat (1961)
    Springer
    Cellular and molecular life sciences 17 (1961), S. 46-47 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé La stimulation du cortex sensori-moteur chez le chat facilite toutes actions synaptiques — excitatrices ou inhibitrices — qui sont provoquées dans les motoneurones par l'intermédiaire d'un ou de plusieurs interneurones. Ces actions peuvent prendre naissance dans des fibres afférentes d'origine musculaire I-a, I-b, II ou III, d'origine cutanée ou dans des fibres à seuil élevé provenant d'une jointure. L'effet observé dépend de la mise en action du faisceau pyramidal qui facilite le fonctionnement de tous les interneurones intercalés dans les arcs réflexes mentionnés.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02157948
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    Paper (German National Licenses)
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