• Publications
  • Influence
Conditional dendritic spike propagation following distal synaptic activation of hippocampal CA1 pyramidal neurons
The perforant-path projection to the hippocampus forms synapses in the apical tuft of CA1 pyramidal neurons. We used computer modeling to examine the function of these distal synaptic inputs, whichExpand
  • 252
  • 27
  • PDF
Neurobiological Models of Two-Choice Decision Making Can Be Reduced to a One-Dimensional Nonlinear Diffusion Equation
TLDR
The response behaviors in many two-alternative choice tasks are well described by so-called sequential sampling models. Expand
  • 134
  • 13
  • PDF
Sensory integration dynamics in a hierarchical network explains choice probabilities in cortical area MT
TLDR
We use a hierarchical network model composed of reciprocally connected sensory and integration circuits. Expand
  • 74
  • 10
The Role of Degree Distribution in Shaping the Dynamics in Networks of Sparsely Connected Spiking Neurons
  • Alex Roxin
  • Computer Science, Medicine
  • Front. Comput. Neurosci.
  • 8 March 2011
TLDR
We study the effect of broad degree distributions on network dynamics by interpolating between a binomial and a truncated power-law distribution for the in-degree and out-degree independently. Expand
  • 81
  • 7
  • PDF
Firing rate equations require a spike synchrony mechanism to correctly describe fast oscillations in inhibitory networks
Recurrently coupled networks of inhibitory neurons robustly generate oscillations in the gamma band. Nonetheless, the corresponding Wilson-Cowan type firing rate equation for such an inhibitoryExpand
  • 34
  • 6
  • PDF
UP-DOWN cortical dynamics reflect state transitions in a bistable network
In the idling brain, neuronal circuits transition between periods of sustained firing (UP state) and quiescence (DOWN state), a pattern the mechanisms of which remain unclear. Here we analyzedExpand
  • 51
  • 4
Network mechanisms underlying the role of oscillations in cognitive tasks
TLDR
We study the mechanisms underlying the influence of oscillatory drive on network dynamics related to cognitive processing in simple working memory (WM), and memory recall tasks. Expand
  • 21
  • 4
  • PDF
Efficient Partitioning of Memory Systems and Its Importance for Memory Consolidation
TLDR
We show that the trade-off between memory strength and memory lifetime is overcome by partitioning the memory system into multiple regions characterized by different levels of synaptic plasticity and transferring memory information from the more to less plastic region. Expand
  • 47
  • 3
  • PDF
Synchrony-induced modes of oscillation of a neural field model.
We investigate the modes of oscillation of heterogeneous ring networks of quadratic integrate-and-fire (QIF) neurons with nonlocal, space-dependent coupling. Perturbations of the equilibrium stateExpand
  • 13
  • 1
  • PDF
Mean-field equations for neuronal networks with arbitrary degree distributions.
The emergent dynamics in networks of recurrently coupled spiking neurons depends on the interplay between single-cell dynamics and network topology. Most theoretical studies on network dynamics haveExpand
  • 6
  • 1