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  • 1965-1969  (6)
  • 1910-1914
  • 1890-1899
  • 1966  (6)
  • 1913
  • Flexor reflex afferents  (3)
  • Squirrel monkey  (3)
Source
Material
Years
  • 1965-1969  (6)
  • 1910-1914
  • 1890-1899
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Functional organization of the spinoreticulocerebellar path with identification of its spinal component (1966)
    Springer
    Experimental brain research 1 (1966), S. 306-319 
    Details
    ISSN: 1432-1106
    Keywords: Lateral reticular nucleus ; Reticulocerebellar tract ; Spinoreticular tract ; Cerebellum ; Flexor reflex afferents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Mass discharges were recorded from the dissected left restiform body in unanaesthetized, decerebrate, and decerebellate cats. The spinal cord was severed in the thoracic or cervical region sparing only the left ventral quadrant. In this preparation the discharges were shown to relate largely or exclusively to activity in the reticulocerebellar tract originating from the lateral reticular nucleus. The ascending spinal tract was identified with the bilateral ventral flexor reflex tract (bVFRT) of Lundberg and Oscarsson (1962). The reticulocerebellar tract was activated from the flexor reflex afferents and nerve volleys from each of the four limbs were equally effective. It is concluded that the lateral reticular nucleus is not responsible for the somatotopically organized projection of cutaneous afferents, as assumed before. The bVFRT is strongly influenced from the cerebellar cortex and the organization of the closed loop formed between the cortex and the spinal cord is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237703
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Response characteristics of retieulocerebellar neurones activated from spinal afferents (1966)
    Springer
    Experimental brain research 1 (1966), S. 320-328 
    Details
    ISSN: 1432-1106
    Keywords: Lateral reticular nucleus ; Reticulocerebellar tract ; Spinoreticular tract ; Cerebellum ; Flexor reflex afferents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The experiments were done on unanaesthetized, decerebrate, and decerebellate cats. Recording was made from axons originating in the lateral reticular nucleus on stimulation of various nerves, cutaneous receptors, and certain descending tracts. Excitatory and inhibitory effects were evoked from the flexor reflex afferents of receptive fields which included most of the body surface. It is concluded that the lateral reticular nucleus with respect to its afferent inflow is similar to the non-cerebellar nuclei of the reticular formation. The possibility that the reticulocerebellar tract is important in determining the background excitation of cortical neurones is discussed. The effects evoked by stimulation of descending tracts were consistent with the disclosure that the bilateral ventral flexor reflex tract is the afferent path to the lateral reticular nucleus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237704
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Mass discharges evoked in the olivocerebellar tract on stimulation of muscle and skin nerves (1966)
    Springer
    Experimental brain research 1 (1966), S. 329-337 
    Details
    ISSN: 1432-1106
    Keywords: Inferior olive ; Olivocerebellar tract ; Spinoolivary tract ; Cerebellum ; Flexor reflex afferents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The discharges were recorded from the dissected right restiform body in unanaesthetized, decerebrate, and decerebellate cats. The spinal cord was severed in the thoracic and/or cervical region sparing only the left ventral quadrant. The discharges were shown to relate largely or exclusively to activity in the olivocerebellar tract. The olivocerebellar discharges were elicited by stimulation of the flexor reflex afferents. Large responses were evoked from the right hindlimb nerves and small responses from the left hindlimb nerves. The responses had a latency of about 20 msec. The spinoolivary tract is tentatively identified with the contralateral ventral flexor reflex tract of Lundberg and Oscarsson (1962).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237705
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Neurophysiological correlates of brightness discrimination in the lateral geniculate nucleus of the squirrel monkey (1966)
    Springer
    Experimental brain research 2 (1966), S. 1-17 
    Details
    ISSN: 1432-1106
    Keywords: Brightness discrimination ; Lateral geniculate ; Squirrel monkey
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Incremental brightness thresholds (DI) were psychophysically determined at several background illumination intensities for three squirrel monkeys. Gross asymmetrical electrodes were then chronically implanted in the lateral geniculate nucleus of the same animals, and activity was recorded in stimulus conditions identical to behavioral testing. Overall activity, recorded through an integrating voltmeter, showed 1. a tendency to decrease as steady background illumination increased, and 2. an abrupt transient increase at both onset and offset to DI test flashes, directly proportional to test flash intensity. Background illumination, in proportion to its intensity, depressed response to a superimposed test flash. Test flashes below intensity DI at the various levels of background illumination produced no measurable response. The quantity DI was shown to be a function of the depressive or inhibitory effect of background illumination on the capacity of the system to respond to transient stimulation. A secondary determinant of DI appeared to be the amount of variability in ongoing neural activity upon which the DI flash is imposed. The author is indebted to the supervisor of her dissertation, Dr. L. R. Pinneo, for introducing her to the recording technique and for his help towards the completion of this work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234357
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Histochemical mapping of succinic dehydrogenase and cytochrome oxidase in the spinal cord, medulla oblongata and cerebellum of squirrel monkey (Saimiri sciureus) (1966)
    Springer
    Experimental brain research 2 (1966), S. 216-229 
    Details
    ISSN: 1432-1106
    Keywords: Squirrel monkey ; Brain stem-Histochemical mapping ; Succinic dehydrogenase ; Cytochrome oxidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The distribution of succinic dehydrogenase (SDA) and cytochrome oxidase (Cy. O) in serial sections of the cervical region of the spinal cord and the medulla oblongata, arranged caudo-cranially, has been described. The motor cranial nerve nuclei exhibit strong SDA and Cy. O activity in the neurons and neuropil. The nuclei gracilis, cuneatus, olivaris inferior, cochlearis and vestibularis likewise show strong enzyme activity. Nucleus intercalatus and nucleus tractus solitarius, however, show weak and moderate enzyme activity respectively. The lateral part of formatio reticularis myelencephali shows less SDA and Cy. O compared to the medial part, which shows some accumulation of these enzymes in the neuropil. The neuropil of the molecular layer of cerebellar cortex and the perikarya and dendrites of the Purkinje cells show strong SDA and Cy. O activity. The granular layer exhibits stronger SDA and Cy. O in the synaptic glomeruli. The cerebellar nuclei possess stronger enzyme activity in the neurons and dendritic branches, compared to mild activity in the neuropil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236714
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Histochemical mapping of succinic dehydrogenase and cytochrome oxidase in the pons and mesencephalon of squirrel monkey (Saimiri sciureus) (1966)
    Springer
    Experimental brain research 2 (1966), S. 230-246 
    Details
    ISSN: 1432-1106
    Keywords: Squirrel monkey ; Midbrain ; Histochemical mapping ; Succinic dehydrogenase ; Cytochrome oxidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The distribution of succinic dehydrogenase (SDA) and cytochrome oxidase (Cy. O) has been investigated in a series of sections through the pons and mesencephalon of the squirrel monkey brain. The localization of the two enzymes is very similar in the various regions and shows only slight differences. The epiphysis, however, shows moderately strong SDA and very mild Cy. O activity. Particularly strong SDA and Cy. O activity has been observed in the cell bodies of the various cranial nerve nuclei, nucleus colliculi inferioris, colliculi superioris, nuclei griseum pontis, reticularis tegmenti pontis, lemnisci lateralis pars dorsalis, geniculatum laterale and mediale, and pulvinaris. The enzyme content of the neurons and cell bodies is generally stronger compared to the neuropil which often occurs in smooth, loose, compact and reticulated forms. Any special relationship between the neurons and neuropil with regard to their enzyme content has, however, not been observed. The cranial nerves, and fibers of the brachium conjunctivum, corpus callosum, and fornix show very mild enzyme activity except those of the trapezoid complex which show moderate enzyme activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236715
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    Paper (German National Licenses)
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