Bump attractor
WebJan 26, 2024 · A common hypothesis is that the information is maintained in a bump attractor’s state. We test the bump attractor hypothesis and find that its predictions are inconsistent with the path integration behaviour of ants, thus highlighting the need for alternative models of path integration memory. WebJul 27, 2024 · While bump attractors are a common and long standing model, these large valued inputs force a reduction in the number of inhibitory connections so that the bump …
Bump attractor
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WebSynonyms for BUMP: swelling, lump, bruise, nodule, node, hump, knot, tumor; Antonyms of BUMP: miss, skirt WebMar 4, 2024 · However, many bump attractor models collapse these subpopulations into a single joint excitatory/inhibitory (lateral inhibitory) population, and do not consider the role of interpopulation neural architecture and noise correlations. Both factors have a high potential to impinge upon the stochastic dynamics of these bumps, ultimately shaping ...
WebBump attractors are wandering localized patterns observed in in vivo experiments of spatially extended neurobiological networks. They are important for the brain's … WebJan 5, 2016 · The bump attractor neural structures (with d = 0 and 1) and their versions definitely constitute a part of this set of principles (Knierim …
Webnoun. something that bulges out or is protuberant or projects from its surroundings. synonyms: bulge, excrescence, extrusion, gibbosity, gibbousness, hump, jut, … WebPath integration is a navigational strategy through which an animal remains oriented even in the absence of stable landmarks. Bump attractor networks have played a key role in modeling and analyzing the neural processes involved in path integration. In such networks, self-motion inputs and asymmetries in the network translate an activity bump over the …
WebWith the reduced model in hand, we can then approximate the dynamics of the bump position using a continuous time Markov chain model that describes bump motion between local attractors. While heterogeneity reduces the effective diffusion of the bumps, it also disrupts the processing of velocity inputs by slowing the velocity-induced propagation ...
WebJul 27, 2024 · Making the beverage temperature subnets bump attractors enables persistent activity. However, with large input ranges, there are two bumps of activity at the ends of the range. For example, in the Hot Coffee case, neurons 70 ∘ to 74 ∘ and 95 ∘ to 99 ∘ fire persistently. This is the problem that was solved in Section 4. cow diarrheaWebSep 8, 2014 · 18.3 Bump attractors and spontaneous pattern formation. 18.3. Bump attractors and spontaneous pattern formation. In this section we study a continuum model with strong recurrent connections such that … disney animal kingdom movieWebBump attractor networks have played a key role in modeling and analyzing the neural processes involved in path integration. In such networks, self-motion inputs and asymmetries in the network translate an activity bump over the attractor manifold, updating the animal's perceived position in space. cow dick foodWebMar 16, 2024 · Here, we show that the continuous ring attractor network can integrate a stimulus feature such as orientation and track the stimulus average in the phase of its activity bump. We reduced the network dynamics of the ring model to a two-dimensional equation for the amplitude and the phase of the bump. Interestingly, these reduced … disney animal kingdom park hoursWebHere, we show that a continuous bump attractor network can integrate a circular feature, such as stimulus direction, nearly optimally. As required by optimal integration, the population activity of the network unfolds on a two-dimensional manifold, in which the position of the network’s activity bump tracks the stimulus average, and ... cow died suddenlyWebOct 24, 2011 · While bump attractor dynamics are preserved for values of the heterogeneity strength ε up to order O(1), the above analysis indicates that the drift of the activity bump may be too fast unless ε is chosen to be much closer to zero – i.e., unless the synaptic efficacies have much finer tuning than necessary for maintaining bump attractor ... disney animal kingdom opening hoursWebSep 16, 2024 · Bump attractors are wandering localised patterns observed in in vivo experiments of spatially-extended neurobiological networks. They are important for the … cow diarrhea treatment