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Cerebellar control of the red nucleus and adjacent structures in the young rabbit
Author(s) -
Laget P.,
DelhayeBouchaud N.
Publication year - 1969
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/dev.420020209
Subject(s) - red nucleus , nucleus , stimulation , cerebellum , neuroscience , deep cerebellar nuclei , extracellular , biology , oculomotor nucleus , evoked activity , anatomy , central nervous system , microbiology and biotechnology , cerebellar cortex , midbrain
Maturation of the cerebellar influence on rubral cells was studied in70 young rabbits aged from 3 to 17 days. Extracellular spike potentials of 187 neurons belonging to the magnocellular part of the red nucleus were recorded with glass microelectrodes. The differences observed between young and old animals are quantitative and particularly striking. Out of 107 cells in animals less than 8 days old, only 7 were facilitated or inhibited by cerebellar stimulation, whereas in older animals, out of 80 cells, 76 were facilitated or inhibited. Similar results were obtained for 273 perirubral cells and 72 oculomotor cells. The present results suggest that cerebello‐interposital or interposito‐rubral connections are not yet functional during the first postnatal week.