Conclusion
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1.
Electron-microscopic study of synapses in the rabbit sensomotor cortex during the summation reflex reveals structural changes in the pre- and postsynaptic components of axodendritic synapses, possibly as a result of increased functional activity of the synaptic apparatus.
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2.
The strongest response to a combination of stimuli is observed in the postsynaptic matrix, and it results in marked thickening of the postsynaptic membranes in some axo-dendritic synapses.
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3.
The character of ultrastructural changes in synapses in the sensomotor cortex during formation of simple forms of temporary connection makes it appear likely that the postsynaptic membrane of axo-dendritic synapses is one of the earliest sites of structural consolidation of traces of incoming information.
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Translated from Zhurnal Vysshei Nervnoi Deyatel'nosti imeni I. P. Pavlova, Vol. 30, No. 4, pp. 814–823, July–August, 1980.
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Ryabinina, M.A., Artyukhina, N.I. Morphological and functional changes in sensomotor cortical synapses during the summation reflex in rabbits. Neurosci Behav Physiol 13, 114–122 (1983). https://doi.org/10.1007/BF01190794
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DOI: https://doi.org/10.1007/BF01190794