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  • Cortex  (1)
  • Isotocin neurons  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Hypothalamic and cortical D-C potential changes induced by stimulation of the midbrain reticular formation (1966)
    Springer
    Experimental brain research 1 (1966), S. 205-219 
    Details
    ISSN: 1432-1106
    Keywords: D-C Potentials ; Hypothalamus ; Cortex ; Midbrain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary D-C potential changes were evoked in the sensorimotor cortex and the hypothalamus of unanesthetized cats with chronically implanted electrodes by repetitive stimulation of the mesencephalic reticular formation. Stimulation at 30 to 300 p/sec. frequencies induced negative d-c shifts which were quite abrupt in onset, starting after the second or third shock with a peak of negativity reached within the first 50 to 100 msec of the 1 second duration of stimulation. Typically these negative shifts were sustained for the duration of stimulation with a prolonged 1 to 1.5 second return to baseline after termination of stimulation. Such d-c shifts were relatively independent of the site of the reference electrode but highly dependent on the location of the “active” recording electrodes and the stimulating electrodes. Reasons have been advanced to suggest that these negative d-c shifts reflect summated neuronal discharge in the immediate environs of “active” recording electrodes in the cerebral cortex and hypothalamus. In contrast to the consistent, stimulus-locked negative d-c shifts, less consistent changes, usually positive in polarity, were observed to begin 2 to 3 seconds after termination of RF stimulation. These slower d-c changes were highly dependent on the site of the reference electrode and the physical state of tissue at the electrode tip and therefore far less directly related to neuronal events in cortical and hypothalamic tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234342
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Immunocytochemical identification of enkephalinergic neurons in the hypothalamic magnocellular preoptic nucleus of the goldfish, Carassius auratus (1979)
    Springer
    Cell & tissue research 200 (1979), S. 147-151 
    Details
    ISSN: 1432-0878
    Keywords: Enkephalin neurons ; Vasotocin neurons ; Isotocin neurons ; Immunocytochemistry ; Goldfish (Carassius)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Our immunocytochemical investigation of the magnocellular neuroendocrine system in the goldfish hypothalamus reveals enkephalin (ENK)-containing neurons interspersed among the vasotocin (VT)- and isotocin (IT)-containing neurons of the preoptic nucleus. The perikarya of the ENK, VT, and IT neurons do not show distinct morphological differences at the level of light microscopy and are not located preferentially within the nucleus. Separate ENK, VT and IT fibers course laterally and ventrally through the hypothalamus as they descend toward the pituitary gland. All three fiber types form terminals around blood vessels in the neurohypophysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236894
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    Paper (German National Licenses)
    Fulltext
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