A neural circuit architecture for angular integration in Drosophila.

A neural circuit architecture for angular integration in Drosophila.
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DOI:
10.1038/nature22343
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发表时间:
2017-06-01
期刊:
影响因子:
64.8
通讯作者:
Maimon G
Maimon G
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Green J;Adachi A;Shah KK;Hirokawa JD;Magani PS;Maimon G

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Many animals keep track of their angular heading over time while navigating through their environment. However, a neural-circuit architecture for computing heading has not been experimentally defined in any species. Here we describe a set of clockwise- and counterclockwise-shifting neurons in the Drosophila central complex whose wiring and physiology provide a means to rotate an angular heading estimate based on the fly’s turning velocity. We show that each class of shifting neurons exists in two subtypes, with spatiotemporal activity profiles that suggest opposing roles for each subtype at the start and end of a turn. Shifting neurons are required for the heading system to properly track the fly’s heading in the dark, and stimulation of these neurons induces predictable shifts in the heading signal. The central features of this biological circuit are analogous to those of computational models proposed for head-direction cells in rodents and may shed light on how neural systems, in general, perform integration.
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