Direction selectivity in retinal bipolar cell axon terminals.
Akihiro Matsumoto,Weaam Agbariah,Stella Solveig Nolte,Rawan Andrawos,Hadara Levi,Shai Sabbah,Keisuke Yonehara +6 more
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TLDR
In this article, the authors used two-photon glutamate imaging to measure synaptic release and reveal that direction selectivity along all four directions arises earlier than expected at bipolar cell outputs.About:
This article is published in Neuron.The article was published on 2021-09-15 and is currently open access. It has received 14 citations till now. The article focuses on the topics: Axon terminal & Retina.read more
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Origins of direction selectivity in the primate retina
TL;DR: In this article , the authors combined functional recordings of light-evoked responses and connectomic reconstruction to identify diverse direction-selective cell types in the macaque monkey retina with distinctive physiological properties and synaptic motifs.
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Center-surround interactions underlie bipolar cell motion sensitivity in the mouse retina
Sarah Strauss,Maria M. Korympidou,Yanli Ran,Katrin Franke,Timm Schubert,Tom Baden,Philipp Berens,Thomas Euler,Anna Vlasits +8 more
TL;DR: In this article , the authors studied the representation of motion in mouse retinal bipolar cells and found that some bipolar cells are radially direction selective, preferring the origin of small object motion trajectories.
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Distinct inhibitory pathways control velocity and directional tuning in the mouse retina
TL;DR: In this article , the authors investigated two circuits responsible for encoding different aspects of image motion: ON and ON-OFF direction-selective ganglion cells (DSGCs) and showed that distinct inhibitory pathways independently control tuning for motion velocity and motion direction in these two cell types.
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Classical center-surround receptive fields facilitate novel object detection in retinal bipolar cells
TL;DR: In this paper , the authors found that bipolar glutamate release emphasizes objects that emerge in the receptive field (RF) during continuous motion, and that the alteration in signal dynamics induced by novel objects was more pronounced than edge enhancement.
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Diurnal changes in the efficiency of information transmission at a sensory synapse
TL;DR: In this paper , the authors investigated how neuromodulation alters the amount of information transmitted through the circuit and demonstrated that contrast sensitivity peaks in the afternoon accompanied by a four-fold increase in the average Shannon information transmitted from an active zone.
References
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Retinal ganglion cells responding selectively to direction and speed of image motion in the rabbit.
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Wiring specificity in the direction-selectivity circuit of the retina
TL;DR: It is shown, using serial block-face electron microscopy and two-photon calcium imaging, that the dendrites of mouse starburst amacrine cells make highly specific synapses with direction-selective ganglion cells depending on the ganglION cell’s preferred direction.
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The functional diversity of retinal ganglion cells in the mouse
TL;DR: It is shown that the mouse retina harbours substantially more than 30 functional output channels, which include all known and several new ganglion cell types, as verified by genetic and anatomical criteria.
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Evidence for saltatory conduction in peripheral myelinated nerve fibres
A F Huxley,R Stampfli +1 more
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Directionally selective calcium signals in dendrites of starburst amacrine cells
TL;DR: Dendritic calcium signals, but not somatic membrane voltage, are directionally selective for stimuli that move centrifugally from the cell soma, demonstrating that direction selectivity is computed locally in dendritic branches at a stage before ganglion cells.