T. K. Lapenko

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Primuline fluorochrome retrograde transport technique was used to investigate sources of thalamocortical projections to a single rat somatosensory cortex column connected with the projection of the C3 vibrissa. Labeled cells were identified in eight different thalamic nuclei: two specific, five nonspecific, and one association nucleus. Labeled neurons(More)
  • T K Lapenko
  • Arkhiv anatomii, gistologii i émbriologii
  • 1982
The multicellular neuronal groups named "barrels", which make the posterior-medial subfield of barrels and situate in IV layer of the somatosensory area of the rat cerebral cortex in the zone of the vibrissa representation have been studied. Average volumetric meanings and the number of neurons have been obtained in the barrels of various size and in the(More)
Short corticocortical connections between specialized groups of neurons (so-called barrels) were studied in the somatosensory cortex. After microinjections of horseradish peroxidase into a definite "barrel" labeled neurons were found in nearby groups within a radius of up to 400 µ. Labeled neurons were located chiefly in cortical layers V and III; 90% of(More)
Localization and morphology of neuronal groups in the ventrobasal thalamic complex that project to the vibrissae area in the somatosensory rat cortex were studied by means of retrograde axonal transport of horseradish peroxidase (HRP). The HRP-labelled cells were located in the ventroposterolateral nucleus of the ventrobasal complex and were grouped in(More)
The method of primuline fluorochrome retrograde transport was used to study sources of thalamo-cortical projections on a separate somatic cortical neuronal column connected with C3 vibrissae of albino rat. Labeled cells were found in 8 thalamic nuclei: tv, tvd, tpo, pf, rh, tvm, tvl, tr. The intensity of neuron staining and cell quantity and density varied(More)
Intercortical connections between different groups of neurons, the so-called "barrels" located in the somatic sensory cortex of the rat brain were identified by the retrograde horseradish transport technique. It is shown that HRP-labelled cells were found at a distance up to 400 microns from the place of injection. 90% of them are pyramidal neurons located(More)
The retrograde horseradish peroxidase (HRP) transport method was used to study the location and morphology of neuron groups in the ventrobasal complex of the thalamus projecting to the region of vibrissal representation in the somatosensory cortex in rats. Injection of HRP into a circumscribed region of the somatosensory cortex revealed the following(More)
It is shown in physiological works [V. B. Mountcastle, 1957; A. B. Koga, 1972; M. M. Khananashvili, 1972; S. A. Kuznetsov, 1976] that a characteristic union of individual neurons into their functional units called columns, ensembles, or modules is observed during realization of even the most simple function. Functions of a higher order are apparently(More)
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