What is it about?
Are olfactory neurons arranged in a functionally meaningful way to facilitate information processing? In this study, we identify a valence map in fly antennae and illustrate how lateral inhibition between neighboring olfactory receptor neurons mediates robust behavioral responses to countervailing cues.
Photo by Erik Karits on Unsplash
Why is it important?
A hallmark of complex sensory systems is the organization of neurons into functionally meaningful maps, such as retinotopic or somatotopic organizations, which allow for comparison and contrast of parallel inputs via lateral inhibition. In olfaction, however, both the existence and nature of such a sensory map remain undetermined, thus raising the central questions of whether and how chemosensory neurons are organized in a specific manner that impacts sensory processing. Here, we address these long-standing questions by uncovering a valence map in the olfactory periphery of Drosophila.
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This page is a summary of: Valence opponency in peripheral olfactory processing, Proceedings of the National Academy of Sciences, January 2022, Proceedings of the National Academy of Sciences, DOI: 10.1073/pnas.2120134119.
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