Abstract:
:Making inferences about the computations performed by neuronal circuits from synapse-level connectivity maps is an emerging opportunity in neuroscience. The mushroom body (MB) is well positioned for developing and testing such an approach due to its conserved neuronal architecture, recently completed dense connectome, and extensive prior experimental studies of its roles in learning, memory and activity regulation. Here we identify new components of the MB circuit in Drosophila, including extensive visual input and MB output neurons (MBONs) with direct connections to descending neurons. We find unexpected structure in sensory inputs, in the transfer of information about different sensory modalities to MBONs, and in the modulation of that transfer by dopaminergic neurons (DANs). We provide insights into the circuitry used to integrate MB outputs, connectivity between the MB and the central complex and inputs to DANs, including feedback from MBONs. Our results provide a foundation for further theoretical and experimental work.
journal_name
Elifejournal_title
eLifeauthors
Li F,Lindsey JW,Marin EC,Otto N,Dreher M,Dempsey G,Stark I,Bates AS,Pleijzier MW,Schlegel P,Nern A,Takemura SY,Eckstein N,Yang T,Francis A,Braun A,Parekh R,Costa M,Scheffer LK,Aso Y,Jefferis GS,Abbott LF,Litwidoi
10.7554/eLife.62576subject
Has Abstractpub_date
2020-12-14 00:00:00issn
2050-084Xpii
62576journal_volume
9pub_type
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