Olfactory information processing in Drosophila.

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Current Biology : CB. 2009 Aug 25;19(16):R700-13. doi: 10.1016/j.cub.2009.06.026

Olfactory information processing in Drosophila. Turner Lab

Masse NY, Turner GC, Jeffers GS

Note: Research in this publication was not performed at Janelia.

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Abstract

In both insect and vertebrate olfactory systems only two synapses separate the sensory periphery from brain areas required for memory formation and the organisation of behaviour. In the Drosophila olfactory system, which is anatomically very similar to its vertebrate counterpart, there has been substantial recent progress in understanding the flow of information from experiments using molecular genetic, electrophysiological and optical imaging techniques. In this review, we shall focus on how olfactory information is processed and transformed in order to extract behaviourally relevant information. We follow the progress from olfactory receptor neurons, through the first processing area, the antennal lobe, to higher olfactory centres. We address both the underlying anatomy and mechanisms that govern the transformation of neural activity. We emphasise our emerging understanding of how different elementary computations, including signal averaging, gain control, decorrelation and integration, may be mapped onto different circuit elements.

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Olfactory information processing in Drosophila.

Note: Research in this publication was not performed at Janelia.

Abstract