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Curr Opin Insect Sci. 2019 Dec;36:9-17. doi: 10.1016/j.cois.2019.06.003. Epub 2019 Jun 8.

Neuronal mechanisms underlying innate and learned olfactory processing in Drosophila.

Author information

1
Department of Biomedical Science, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, United Kingdom.
2
Department of Biomedical Science, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, United Kingdom. Electronic address: andrew.lin@sheffield.ac.uk.

Abstract

Olfaction allows animals to adapt their behavior in response to different chemical cues in their environment. How does the brain efficiently discriminate different odors to drive appropriate behavior, and how does it flexibly assign value to odors to adjust behavior according to experience? This review traces neuronal mechanisms underlying these processes in adult Drosophila melanogaster from olfactory receptors to higher brain centers. We highlight neural circuit principles such as lateral inhibition, segregation and integration of olfactory channels, temporal accumulation of sensory evidence, and compartmentalized synaptic plasticity underlying associative memory.

PMID:
31280185
DOI:
10.1016/j.cois.2019.06.003

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