A Model of Motion Processing in the Visual Cortex Using Neural Field With Asymmetric Hebbian Learning

Frontiers in Neuroscience
Anila GundavarapuKarthik Soman

Abstract

Neurons in the dorsal pathway of the visual cortex are thought to be involved in motion processing. The first site of motion processing is the primary visual cortex (V1), encoding the direction of motion in local receptive fields, with higher order motion processing happening in the middle temporal area (MT). Complex motion properties like optic flow are processed in higher cortical areas of the Medial Superior Temporal area (MST). In this study, a hierarchical neural field network model of motion processing is presented. The model architecture has an input layer followed by either one or cascade of two neural fields (NF): the first of these, NF1, represents V1, while the second, NF2, represents MT. A special feature of the model is that lateral connections used in the neural fields are trained by asymmetric Hebbian learning, imparting to the neural field the ability to process sequential information in motion stimuli. The model was trained using various traditional moving patterns such as bars, squares, gratings, plaids, and random dot stimulus. In the case of bar stimuli, the model had only a single NF, the neurons of which developed a direction map of the moving bar stimuli. Training a network with two NFs on moving square a...Continue Reading

References

Feb 1, 1985·Journal of the Optical Society of America. A, Optics and Image Science·E H Adelson, J R Bergen
Mar 1, 1968·The Journal of Physiology·D H Hubel, T N Wiesel
Apr 1, 1982·Proceedings of the National Academy of Sciences of the United States of America·J J Hopfield
Dec 9, 1982·Nature·E H Adelson, J A Movshon
Nov 1, 1980·Journal of the Optical Society of America·S Marcelja
Oct 1, 1995·Trends in Neurosciences·G C DeAngelisR D Freeman
May 30, 1998·Vision Research·E P Simoncelli, D J Heeger
Jan 22, 2000·Brain Research Bulletin·R G Morris
Feb 7, 2001·Current Opinion in Neurobiology·J Z Tsien
Dec 2, 2000·Nature Neuroscience·M C MorroneD C Burr
Dec 4, 2001·Nature Neuroscience·Alexander C Huk, David J Heeger
Mar 6, 2004·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Yu-Xi FuYang Dan
Jul 19, 2005·Annual Review of Neuroscience·Richard T Born, David C Bradley
Oct 17, 2006·Nature Neuroscience·Nicole C RustJ Anthony Movshon
Jan 12, 2007·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Najib J MajajJ Anthony Movshon
Jan 16, 2008·Physiological Reviews·Guy A Orban
Feb 16, 2008·Annual Review of Neuroscience·Natalia Caporale, Yang Dan
Jan 15, 2009·Nature Reviews. Neuroscience·David C Bradley, Manu S Goyal
Mar 6, 2012·Neural Networks : the Official Journal of the International Neural Network Society·Olivier BichlerChristian Gamrat
Feb 18, 2015·Frontiers in Computational Neuroscience·Ryan T Philips, V Srinivasa Chakravarthy
Jul 23, 2016·Neuropsychologia·Sharon Gilaie-Dotan
Aug 17, 2018·Vision Research·L Bowns

❮ Previous
Next ❯

Software Mentioned

LISSOM
Perceptron

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
R S Zemel, T J Sejnowski
Journal of Cognitive Neuroscience
Jeannette A M LorteijeRichard J A van Wezel
© 2022 Meta ULC. All rights reserved