+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Spontaneous motion on two-dimensional continuous attractors

, : Spontaneous motion on two-dimensional continuous attractors. Neural Computation 27(3): 507-547

Attractor models are simplified models used to describe the dynamics of firing rate profiles of a pool of neurons. The firing rate profile, or the neuronal activity, is thought to carry information. Continuous attractor neural networks (CANNs) describe the neural processing of continuous information such as object position, object orientation, and direction of object motion. Recently it was found that in one-dimensional CANNs, short-term synaptic depression can destabilize bump-shaped neuronal attractor activity profiles. In this article, we study two-dimensional CANNs with short-term synaptic depression and spike frequency adaptation. We found that the dynamics of CANNs with short-term synaptic depression and CANNs with spike frequency adaptation are qualitatively similar. We also found that in both kinds of CANNs, the perturbative approach can be used to predict phase diagrams, dynamical variables, and speed of spontaneous motion.


PMID: 25602773

DOI: 10.1162/NECO_a_00711

Other references

Gutman, J.A.; Haft, J.I., 1979: Mediastinal tumor presenting as a new heart murmur: diagnosis and treatment. Journal of the Medical Society of New Jersey 76(5): 364-366

Jankowski, R.; Schrewelius, C.; Bonfils, P.; Saban, Y.; Gilain, L.; Prades, J.M.; Strunski, V., 2001: Efficacy and tolerability of budesonide aqueous nasal spray treatment in patients with nasal polyps. To assess the efficacy and tolerability of once-daily treatment with budesonide aqueous nasal spray in patients with nasal polyps. Randomized, double-blind, placebo-controlled, parallel-group study. Sixteen hospital clinics. One hundred eighty-thr...

Choudhury, B.; Leoff, C.; Saile, E.; Wilkins, P.; Quinn, C.P.; Kannenberg, E.L.; Carlson, R.W., 2006: The structure of the major cell wall polysaccharide of Bacillus anthracis is species-specific. In this report we describe the structure of the polysaccharide released from Bacillus anthracis vegetative cell walls by aqueous hydrogen fluoride (HF). This HF-released polysaccharide (HF-PS) was isolated and structurally characterized from the A...

Clemmens, M., 1958: Incidence and causes of acute bilateral deafness as seen in patients of the Zurich University Clinic. Practica Oto-Rhino-Laryngologica 20(3): 161-183

Bastarrachea, Rúl.A.; Gallegos-Cabriales, E.C.; Nava-González, E.J.; Haack, K.; Voruganti, V.Saroja.; Charlesworth, J.; Laviada-Molina, H.A.; Veloz-Garza, R.A.; Cardenas-Villarreal, V.Margarita.; Valdovinos-Chavez, S.B.; Gomez-Aguilar, P.; Meléndez, G.; López-Alvarenga, J.Carlos.; Göring, H.H.H.; Cole, S.A.; Blangero, J.; Comuzzie, A.G.; Kent, J.W., 2012: Integrating genomic analysis with the genetic basis of gene expression: preliminary evidence of the identification of causal genes for cardiovascular and metabolic traits related to nutrition in Mexicans. Whole-transcriptome expression profiling provides novel phenotypes for analysis of complex traits. Gene expression measurements reflect quantitative variation in transcript-specific messenger RNA levels and represent phenotypes lying close to the...

Bouhot D.; Bonnel L., 1979: Description and use of a 2 step bioassay to study soil depletion. Annales de Phytopathologie 11(1): 111-115

Miller E.G., 1975: Effect of dnase i on the number and length of chains of poly adp ribose synthesized in vitro. Biochemical & Biophysical Research Communications 66(1): 280-286

Gosset, J.; Deviere, J.; Matos, C., 2004: Magnetic resonance imaging of acute pancreatitis: the pancreatogram. Acute pancreatitis has been reported in many cases after therapeutic ERCP. We report the case of a 65 year man old who, after ERCP, manifested biologically acute pancreatitis. The patient was observed using dynamic MR pancreatography with secretin...

Eckhardt, S., 1981: Present and future of tumor chemotherapy. Orvosi Hetilap 122(52): 3187-3190

B.A.Brown R.I.Munsell, 1943: Pasture investigations (Tenth report). The effect of fertilizers on grazed, permanent pastures. The effects of the different fertilizers are considered as three main topics: changes in the soil at various depths; changes in the botanical and chemical composition of the vegetation; and total and seasonal production of pasturage. Fertilizers h...