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  • 2000-2004
  • 1970-1974
  • 1965-1969  (5)
  • 1890-1899
  • 1800-1809
  • 1966  (5)
  • Flexor reflex afferents  (3)
  • Analytical Chemistry and Spectroscopy
  • Physical Chemistry
  • Rat
Material
Years
  • 2000-2004
  • 1970-1974
  • 1965-1969  (5)
  • 1890-1899
  • 1800-1809
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 1 (1966), S. 299-305 
    ISSN: 1432-1106
    Keywords: Prolongation of dioestrus ; Brain-stem ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Diencephalic and mesencephalic lesions in albino rats elicited a disturbance of the vaginal oestrous cycle characterized by “pseudopregnancy-like” prolongation of dioestrus; occasionally decidual responses could be elicited by uterine traumatization. Oestrogen administration on the day before traumatization failed to enhance significantly the frequency of decidual responses in rats with diencephalic lesions, but succeeded in doing so in rats with mesencephalic lesions. It is assumed that the lesions destroy partially the mesencephalo-hypothalamic afferent system containing nerve fibres stimulating the hypothalamic cells producing the luteotrophin (prolactin) inhibiting factor.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 1 (1966), S. 306-319 
    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
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 1 (1966), S. 320-328 
    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
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 1 (1966), S. 329-337 
    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
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 2 (1966), S. 168-175 
    ISSN: 1432-1106
    Keywords: Spreading depression ; Pupilla ; Thalamus ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Spreading depression elicited in the thalamus of albino rats anesthetized with Dial by microinjection of 0.2–1.0 μl 25% KCl is accompanied by a maximal pupillary dilatation of the paralytic type. The mydriasis starts immediately after KCl application, culminates about 90 sec later and then slowly subsides with a half time of about 5 min. Although with lateralized KCl application thalamic spreading depression reaches the ipsilateral lateral geniculate body approximately 1 min earlier than the contralateral one, the pupillary reactions are strictly synchronous in both eyes. Participation of the sympathetic fibres was ruled out by the observation that thalamic spreading depression evokes the same mydriasis in the “encéphale isolé” rats. Cortical spreading depression, on the contrary, elicits only slight and shortlasting mydriasis. Comparison of the spatial march of spreading depression through the thalamus with the time course of the pupillary reaction indicates that the maximum mydriasis is probably caused by direct invasion of the Edinger-Westphal nucleus by the spreading depression process.
    Type of Medium: Electronic Resource
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