Ontogeny, maturation and plasticity of the olfactory system in the workerbee

Abstract The ontogeny and maturation of the olfactory system in the workerbee have been studied using a combination of neurophysiological (first order neurones) and neuroanatomical techniques (second order neurones). EAG recordings show that normal maturation of the olfactory response takes place during the first 4 days following emergence, and is closely related to the sensory environment during the same period. The synaptic organization of first order and second order neurones of the antennal afferent pathway (analyzed at the level of the glomeruli in the deutocerebrum) is essentially complete three days before emergence. These results are discussed in relation to a possible role of the sensory environment during the period from 3 days before until 8 days after emergence.

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