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- W2079852022 endingPage "1089" @default.
- W2079852022 startingPage "1075" @default.
- W2079852022 abstract "Early stages of visual processing must capture complex, dynamic inputs. While peripheral neurons often implement efficient encoding by exploiting natural stimulus statistics, downstream neurons are specialized to extract behaviorally relevant features. How do these specializations arise? We use two-photon imaging in Drosophila to characterize a first-order interneuron, L2, that provides input to a pathway specialized for detecting moving dark edges. GABAergic interactions, mediated in part presynaptically, create an antagonistic and anisotropic center-surround receptive field. This receptive field is spatiotemporally coupled, applying differential temporal processing to large and small dark objects, achieving significant specialization. GABAergic circuits also mediate OFF responses and balance these with responses to ON stimuli. Remarkably, the functional properties of L2 are strikingly similar to those of bipolar cells, yet emerge through different molecular and circuit mechanisms. Thus, evolution appears to have converged on a common strategy for processing visual information at the first synapse." @default.
- W2079852022 created "2016-06-24" @default.
- W2079852022 creator A5003565151 @default.
- W2079852022 creator A5009631067 @default.
- W2079852022 creator A5058533213 @default.
- W2079852022 creator A5086305320 @default.
- W2079852022 creator A5090469068 @default.
- W2079852022 date "2013-06-01" @default.
- W2079852022 modified "2023-10-13" @default.
- W2079852022 title "GABAergic Lateral Interactions Tune the Early Stages of Visual Processing in Drosophila" @default.
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