User profiles for Y. Roudi

Yasser Roudi

King's College London
Verified email at kcl.ac.uk
Cited by 3822

Grid cells and cortical representation

EI Moser, Y Roudi, MP Witter, C Kentros… - Nature reviews …, 2014 - nature.com
… Lines in left and middle panels indicate two axes of the grid pattern (which define grid
orientation); crosses in the panel on the right indicate grid phase (x–y location of grid fields). c | …

Ten years of grid cells

DC Rowland, Y Roudi, MB Moser… - Annual review of …, 2016 - annualreviews.org
The medial entorhinal cortex (MEC) creates a neural representation of space through a set
of functionally dedicated cell types: grid cells, border cells, head direction cells, and speed …

Path integral methods for the dynamics of stochastic and disordered systems

JA Hertz, Y Roudi, P Sollich - Journal of Physics A: Mathematical …, 2016 - iopscience.iop.org
We review some of the techniques used to study the dynamics of disordered systems
subject to both quenched and fast (thermal) noise. Starting from the Martin–Siggia–Rose/Janssen–…

Recurrent inhibitory circuitry as a mechanism for grid formation

…, R Czajkowski, MB Moser, EI Moser, Y Roudi… - Nature …, 2013 - nature.com
Grid cells in layer II of the medial entorhinal cortex form a principal component of the
mammalian neural representation of space. The firing pattern of a single grid cell has been …

Grid cells require excitatory drive from the hippocampus

…, T Hafting, D Derdikman, JL Kubie, Y Roudi… - Nature …, 2013 - nature.com
To determine how hippocampal backprojections influence spatially periodic firing in grid
cells, we recorded neural activity in the medial entorhinal cortex (MEC) of rats after temporary …

Ising model for neural data: model quality and approximate methods for extracting functional connectivity

Y Roudi, J Tyrcha, J Hertz - Physical Review E, 2009 - APS
We study pairwise Ising models for describing the statistics of multineuron spike trains,
using data from a simulated cortical network. We explore efficient ways of finding the optimal …

[HTML][HTML] Pairwise maximum entropy models for studying large biological systems: when they can work and when they can't

Y Roudi, S Nirenberg, PE Latham - PLoS computational biology, 2009 - journals.plos.org
One of the most critical problems we face in the study of biological systems is building accurate
statistical descriptions of them. This problem has been particularly challenging because …

Mean field theory for nonequilibrium network reconstruction

Y Roudi, J Hertz - Physical review letters, 2011 - APS
There has been recent progress on inferring the structure of interactions in complex networks
when they are in stationary states satisfying detailed balance, but little has been done for …

[HTML][HTML] Statistical physics of pairwise probability models

Y Roudi, E Aurell, JA Hertz - Frontiers in computational neuroscience, 2009 - frontiersin.org
Statistical models for describing the probability distribution over the states of biological
systems are commonly used for dimensional reduction. Among these models, pairwise models …

[PDF][PDF] A novel mechanism for the grid-to-place cell transformation revealed by transgenic depolarization of medial entorhinal cortex layer II

…, J Dickinson, B Dunn, NZ Borgesius, Y Roudi… - Neuron, 2017 - cell.com
… rate difference index for each cell: (X – Y) / (X + Y), where X and Y represent the number of
calcium events detected in contexts X and Y, respectively. Only cells with > 10 events during …