Motion processing in the retina

Abstract : Introduction • The visual system uses motion anticipation to compensate the delays in retino-cortical transmission. • Recent experimental and modelling studies on simple stimuli (moving bars) ([1], [2]) show that a notable preprocessing of visual motion is made by the retina. • They emphasized the role of the gain control occurring at the level of bipolar and ganglion cells (RGCs), in anticipation and other motion features. • These studies feature independent RGCs while these are, in reality, connected (via amacrine cells). • We want to understand how non linear mechanisms (gain control, spike frequency adaptation and connectivity), act on the anticipation of complex shapes motion. • For this we have developed a retina simulator, PRANAS [3] emulating the retina spike response to a visual scene. • We have studied the pairwise correlations between ganglion cells, under the influence of a moving object both, in vivo and in silico.
Complete list of metadatas

Cited literature [5 references]  Display  Hide  Download

https://hal.inria.fr/hal-01638105
Contributor : Bruno Cessac <>
Submitted on : Sunday, November 19, 2017 - 1:35:48 PM
Last modification on : Thursday, January 11, 2018 - 4:36:02 PM
Long-term archiving on : Tuesday, February 20, 2018 - 12:36:12 PM

File

poster_strasbourg.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01638105, version 1

Collections

Citation

Selma Souihel, Bruno Cessac. Motion processing in the retina. GDR multielectrodes , Nov 2017, Strasbourg, France. ⟨hal-01638105⟩

Share

Metrics

Record views

237

Files downloads

66