scholarly journals Author response: Visual projection neurons in the Drosophila lobula link feature detection to distinct behavioral programs

2016 ◽  
Author(s):  
Ming Wu ◽  
Aljoscha Nern ◽  
W Ryan Williamson ◽  
Mai M Morimoto ◽  
Michael B Reiser ◽  
...  
Keyword(s):  
Feature Detection ◽  
Author Response ◽  
Projection Neurons ◽  
Visual Projection

scholarly journals Visual projection neurons in the Drosophila lobula link feature detection to distinct behavioral programs

eLife ◽  
2016 ◽  
Vol 5 ◽  
Author(s):  
Ming Wu ◽  
Aljoscha Nern ◽  
W Ryan Williamson ◽  
Mai M Morimoto ◽  
Michael B Reiser ◽  
...  
Keyword(s):  
Visual Processing ◽  
Feature Detection ◽  
Brain Structures ◽  
Brain Regions ◽  
Projection Neurons ◽  
Small Object ◽  
Two Photon ◽  
Visual Projection ◽  
Anatomical Connection

Visual projection neurons (VPNs) provide an anatomical connection between early visual processing and higher brain regions. Here we characterize lobula columnar (LC) cells, a class of Drosophila VPNs that project to distinct central brain structures called optic glomeruli. We anatomically describe 22 different LC types and show that, for several types, optogenetic activation in freely moving flies evokes specific behaviors. The activation phenotypes of two LC types closely resemble natural avoidance behaviors triggered by a visual loom. In vivo two-photon calcium imaging reveals that these LC types respond to looming stimuli, while another type does not, but instead responds to the motion of a small object. Activation of LC neurons on only one side of the brain can result in attractive or aversive turning behaviors depending on the cell type. Our results indicate that LC neurons convey information on the presence and location of visual features relevant for specific behaviors.

Author response for "Laminar distribution of cortical projection neurons to the pulvinar: A comparative study in cats and mice"

2020 ◽  
Author(s):  
Bruno Oliveira Ferreira de Souza ◽  
Éve‐Marie Frigon ◽  
Robert Tremblay‐Laliberté ◽  
Christian Casanova ◽  
Denis Boire
Keyword(s):  
Comparative Study ◽  
Author Response ◽  
Projection Neurons ◽  
Cortical Projection ◽  
Laminar Distribution

scholarly journals Lobula-specific visual projection neurons are involved in perception of motion-defined second-order motion in Drosophila

2012 ◽  
Vol 216 (3) ◽  
pp. 524-534 ◽  
Author(s):  
X. Zhang ◽  
H. Liu ◽  
Z. Lei ◽  
Z. Wu ◽  
A. Guo
Keyword(s):  
Second Order ◽  
Projection Neurons ◽  
Visual Projection

A pair of identified giant visual projection neurons demonstrates rhythmic activities before eclosion

2013 ◽  
Vol 550 ◽  
pp. 156-161 ◽  
Author(s):  
Ying Yan ◽  
Ye Xu ◽  
Shengwen Deng ◽  
Naya Huang ◽  
Ying Yang ◽  
...  
Keyword(s):  
Projection Neurons ◽  
Visual Projection

scholarly journals Direct neural pathways convey distinct visual information to Drosophila mushroom bodies

eLife ◽  
2016 ◽  
Vol 5 ◽  
Author(s):  
Katrin Vogt ◽  
Yoshinori Aso ◽  
Toshihide Hige ◽  
Stephan Knapek ◽  
Toshiharu Ichinose ◽  
...  
Keyword(s):  
Visual Information ◽  
Mushroom Body ◽  
Mushroom Bodies ◽  
Small Subset ◽  
Projection Neurons ◽  
Neural Pathways ◽  
Associative Memories ◽  
Visual Projection ◽  
Olfactory Input ◽  
Odor Representation

Previously, we demonstrated that visual and olfactory associative memories of Drosophila share mushroom body (MB) circuits (<xref ref-type="bibr" rid="bib46">Vogt et al., 2014</xref>). Unlike for odor representation, the MB circuit for visual information has not been characterized. Here, we show that a small subset of MB Kenyon cells (KCs) selectively responds to visual but not olfactory stimulation. The dendrites of these atypical KCs form a ventral accessory calyx (vAC), distinct from the main calyx that receives olfactory input. We identified two types of visual projection neurons (VPNs) directly connecting the optic lobes and the vAC. Strikingly, these VPNs are differentially required for visual memories of color and brightness. The segregation of visual and olfactory domains in the MB allows independent processing of distinct sensory memories and may be a conserved form of sensory representations among insects.

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