001     263634
005     20240724153059.0
024 7 _ |2 doi
|a 10.5281/ZENODO.5904586
037 _ _ |a DZNE-2023-00852
100 1 _ |0 P:(DE-2719)2810271
|a Tavosanis, Gaia
|b 0
245 _ _ |a Software: APL synapses distribution on PN and KC meshes, primary data, calcium imaging macros and python scripts from Prisco et al. (v1)
260 _ _ |a Zenodo
|c 2022
336 7 _ |2 DCMI
|a Software
336 7 _ |0 PUB:(DE-HGF)33
|2 PUB:(DE-HGF)
|a Software
|b sware
|m sware
|s 1721827802_7924
336 7 _ |2 BibTeX
|a MISC
336 7 _ |0 6
|2 EndNote
|a Computer Program
336 7 _ |2 ORCID
|a OTHER
336 7 _ |2 DataCite
|a Software
520 _ _ |a To identify and memorize discrete but similar environmental inputs, the brain needs to distinguish between subtle differences of activity patterns in defined neuronal populations. The Kenyon cells of the Drosophila adult mushroom body (MB) respond sparsely to complex olfactory input, a property that is thought to support stimuli discrimination in the MB. To understand how this property emerges, we investigated the role of the inhibitory anterior paired lateral neuron (APL) in the input circuit of the MB, the calyx. Within the calyx, presynaptic boutons of projection neurons (PNs) form large synaptic microglomeruli (MGs) with dendrites of postsynaptic Kenyon cells (KCs). Combining EM data analysis and in vivo calcium imaging, we show that APL, via inhibitory and reciprocal synapses targeting both PN boutons and KC dendrites, normalizes odour-evoked representations in MGs of the calyx. APL response scales with the PN input strength and is regionalized around PN input distribution. Our data indicate that the formation of a sparse code by the Kenyon cells requires APL-driven normalization of their MG postsynaptic responses. This work provides experimental insights on how inhibition shapes sensory information representation in a higher brain centre, thereby supporting stimuli discrimination and allowing for efficient associative memory formation.
536 _ _ |0 G:(DE-HGF)POF4-351
|a 351 - Brain Function (POF4-351)
|c POF4-351
|f POF IV
|x 0
588 _ _ |a Dataset connected to DataCite
700 1 _ |0 P:(DE-2719)2812229
|a Prisco, Luigi
|b 1
|u dzne
773 _ _ |a 10.5281/ZENODO.5904586
787 0 _ |0 DZNE-2022-00002
|a Prisco, Luigi et.al.
|d Cambridge : eLife Sciences Publications, 2021
|i RelatedTo
|t The anterior paired lateral neuron normalizes odour-evoked activity in the Drosophila mushroom body calyx.
909 C O |o oai:pub.dzne.de:263634
|p VDB
910 1 _ |0 I:(DE-588)1065079516
|6 P:(DE-2719)2810271
|a Deutsches Zentrum für Neurodegenerative Erkrankungen
|b 0
|k DZNE
910 1 _ |0 I:(DE-588)1065079516
|6 P:(DE-2719)2812229
|a Deutsches Zentrum für Neurodegenerative Erkrankungen
|b 1
|k DZNE
913 1 _ |0 G:(DE-HGF)POF4-351
|1 G:(DE-HGF)POF4-350
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|a DE-HGF
|b Gesundheit
|l Neurodegenerative Diseases
|v Brain Function
|x 0
914 1 _ |y 2022
920 1 _ |0 I:(DE-2719)1013018
|k AG Tavosanis
|l Dynamics of neuronal circuits
|x 0
980 _ _ |a sware
980 _ _ |a VDB
980 _ _ |a I:(DE-2719)1013018
980 _ _ |a UNRESTRICTED


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