WebDec 4, 2009 · Its branches are narrow, so an active bump of place cells spans the width of a branch. This T is one of five known environments embedded in the connection matrices. The RR has learned about a potential reward at a location w, so neuron S is activated strongly when the center of the bump attractor in E is at w. RR is now placed at position x. 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 ...
Errors in visuospatial working memory across space and time
WebNov 18, 2024 · We demonstrate that this established architecture naturally produces theta sequences and replay as distinct consequences of modulating external input. Driving inhibitory interneurons at the theta frequency causes attractor bumps to oscillate in speed and size, which gives rise to theta sequences and phase precession, respectively. 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 … first words logo
Hot coffee: associative memory with bump attractor cell …
WebSep 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 … WebOct 1, 2024 · This apparent paradox is resolved by noting that in continuous attractor models, random displacements of a bump attractor occur along the dimension of marginal stability (pink manifold in Figure 1 B), rather than through jumps from one attractor basin to the other, as observed in discrete attractor models that are commonly used to model ... WebMay 24, 2024 · Hello, I Really need some help. Posted about my SAB listing a few weeks ago about not showing up in search only when you entered the exact name. I pretty … camping hershey pa