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It has been found that section of half the midbrain tegmentum in cats failed to prevent the afferent somatosensory projections from the foreleg to the ventrobasal nuclear complex of the contralateral thalamus. Specific evoked responses to the stimulation of the contralateral foreleg were recorded in this structure. These specific EP have the same latency as "lemniscal responses" (4-5 ms) and diminish the amplitude and duration of both components of the responses. Simultaneously, we have observed terminal axonal degeneration into the ventrobasal nuclear complex of the thalamus 5-7 days after the section of the contralateral midbrain tegmentum, using the electron microscopy method. All the results obtained indicate that the dorsal column nuclei have extra-lemniscal afferent connections with ventrolateral nuclear complex of the contralateral thalamus. These connections ascend in the back parts of the brainstem ipsilaterally to the corresponding pair of the dorsal column nuclei and rostrally to the midbrain on the contralateral side.
T V Orlova, and
N R Pashina, and
N N Liubimov
June 1969,
Brain research,
T V Orlova, and
N R Pashina, and
N N Liubimov
January 1983,
Anatomy and embryology,
T V Orlova, and
N R Pashina, and
N N Liubimov
January 1994,
Somatosensory & motor research,
T V Orlova, and
N R Pashina, and
N N Liubimov
May 2001,
Pain,
T V Orlova, and
N R Pashina, and
N N Liubimov
April 1980,
Brain research,
T V Orlova, and
N R Pashina, and
N N Liubimov
December 1964,
Bollettino della Societa italiana di biologia sperimentale,
T V Orlova, and
N R Pashina, and
N N Liubimov
June 1969,
Brain research,
T V Orlova, and
N R Pashina, and
N N Liubimov
July 1978,
Brain research,
T V Orlova, and
N R Pashina, and
N N Liubimov
April 1972,
The Journal of comparative neurology,
T V Orlova, and
N R Pashina, and
N N Liubimov
April 1972,
The Journal of comparative neurology,
