[Excitation of different terminal arborizations of an individual axon of a transcallosal neuron in the brain of a rabbit].

Antidromic responses to electrical stimulation of symmetrical area of the contralateral cortex served for identification of sensorimotor and visual callosal units in the unanesthetized rabbits. 15 out of 160 callosal neurons showed to antidromic responses with alternative, discrete and stable latencies. This is considered to be a result of independent excitation of two loci in distal parts of the neuronal axon.