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Muscles that move the retina augment compound eye vision in Drosophila
Drosophila are shown to have retinal muscles that allow them to smoothly track visual motion and also to make rapid eye movements, and the associated functions and mechanisms involved are discussed.
- Lisa M. Fenk
- , Sofia C. Avritzer
- & Gaby Maimon
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Article
| Open AccessVisual recognition of social signals by a tectothalamic neural circuit
A tectothalamic pathway for social affiliation in developing zebrafish dissociates neuronal control of attraction from repulsion during affiliation, revealing a circuit underpinning of collective behaviour
- Johannes M. Kappel
- , Dominique Förster
- & Johannes Larsch
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Article
| Open AccessA biophysical account of multiplication by a single neuron
Release from shunting inhibition and coincident excitation implement a multiplication-like synaptic interaction in motion-sensing neurons of Drosophila melanogaster.
- Lukas N. Groschner
- , Jonatan G. Malis
- & Alexander Borst
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Article |
Cortical direction selectivity emerges at convergence of thalamic synapses
Direction selectivity emerges de novo in layer 4 neurons of primary visual cortex through the convergence of synaptic inputs from thalamic neurons that respond with distinct time courses to visual stimuli in distinct locations.
- Anthony D. Lien
- & Massimo Scanziani
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A retinal code for motion along the gravitational and body axes
Global mapping shows that mouse retinal neurons prefer visual motion produced when the animal moves along two behaviourally relevant axes, allowing the encoding of the animal’s every translation and rotation.
- Shai Sabbah
- , John A. Gemmer
- & David M. Berson
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Letter |
Cortico-fugal output from visual cortex promotes plasticity of innate motor behaviour
Projections from the mouse visual cortex to the brainstem accessory optic system promote the adaptive plasticity of the optokinetic reflex, which stabilizes images on the retina when an animal is moving.
- Bao-hua Liu
- , Andrew D. Huberman
- & Massimo Scanziani
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Article |
Internal models direct dragonfly interception steering
This study tracks dragonfly head and body movements during high-velocity and high-precision prey-capture flights, and shows that the dragonfly uses predictive internal models and reactive control to build an interception trajectory that complies with biomechanical constraints.
- Matteo Mischiati
- , Huai-Ti Lin
- & Anthony Leonardo
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Letter |
Processing properties of ON and OFF pathways for Drosophila motion detection
Four medulla neurons implement two critical processing steps to incoming signals in Drosophila motion detection.
- Rudy Behnia
- , Damon A. Clark
- & Claude Desplan
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Letter |
A directional tuning map of Drosophila elementary motion detectors
This study uses calcium imaging to show that T4 and T5 neurons are divided in specific subpopulations responding to motion in four cardinal directions, and are specific to ON versus OFF edges, respectively; when either T4 or T5 neurons were genetically blocked, tethered flies walking on air-suspended beads failed to respond to the corresponding visual stimuli.
- Matthew S. Maisak
- , Juergen Haag
- & Alexander Borst
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Article |
A visual motion detection circuit suggested by Drosophila connectomics
Reconstruction of a connectome within the fruitfly visual medulla, containing more than 300 neurons and over 8,000 chemical synapses, reveals a candidate motion detection circuit; such a circuit operates by combining displaced visual inputs, an operation consistent with correlation based motion detection.
- Shin-ya Takemura
- , Arjun Bharioke
- & Dmitri B. Chklovskii
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News & Views |
The split view of motion
In both fruitflies and vertebrates, signals from photoreceptor cells are immediately split into two opposing channels in the downstream neurons. This might facilitate the computation of visual motion. See Letter p.300
- Chi -Hon Lee
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Letter |
ON and OFF pathways in Drosophila motion vision
Ramón y Cajal, the founding father of neuroscience, observed similarities between the vertebrate retina and the insect eye, but that was based purely on anatomy. Using state-of-the-art genetics and electrophysiology in the fruitfly, these authors distinguish motion-sensitive neurons responding to abrupt increases in light from those specific to light decrements, thus bringing the similarity with vertebrate circuitry to the functional level.
- Maximilian Joesch
- , Bettina Schnell
- & Alexander Borst