Abstract
The development of the total cortical potentials was investigated in rabbits from the 3rd to the 41st day of postnatal development. It is shown that in newborn rabbits periodic spindlelike outbursts of high-amplitude potentials are a characteristic manifestation of its primary activity. This form of activity is observed both in a resting state and during movements of the animal. After the bunny opens its eyes, especially beginning with the 16th day of development, periodic outbursts of high-amplitude potentials are observed only during behavioral signs of sleep or under conditions of nembutal narcosis. The parameters of the periodicity and frequency composition of the outbursts do not undergo substantial changes during maturation of the cortex. Apparently the “sleep spindles” of the mature brain are genetically related to the primary spindlelike activity of the immature cortex and have the same mechanism as the primary spindles of the immature cortex.
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Translated from Zhurnal Évolyutsionnoi Biokhimii i Fiziologii, Vol. 16, No. 4, pp. 380–385, July–August, 1980.
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Dmitrieva, L.E. Spindlelike cortical potentials during postnatal development of rabbits. Neurosci Behav Physiol 14, 167–172 (1984). https://doi.org/10.1007/BF01185225
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DOI: https://doi.org/10.1007/BF01185225