Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells

A goal of systems neuroscience is to discover the circuit mechanisms underlying brain function. Despite experimental advances that enable circuit-wide neural recording, the problem remains open in part because solving the ‘inverse problem’ of inferring circuity and mechanism by merely observing acti...

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Main Authors: John Widloski, Michael P Marder, Ila R Fiete
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2018-07-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/33503
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author John Widloski
Michael P Marder
Ila R Fiete
author_facet John Widloski
Michael P Marder
Ila R Fiete
author_sort John Widloski
collection DOAJ
description A goal of systems neuroscience is to discover the circuit mechanisms underlying brain function. Despite experimental advances that enable circuit-wide neural recording, the problem remains open in part because solving the ‘inverse problem’ of inferring circuity and mechanism by merely observing activity is hard. In the grid cell system, we show through modeling that a technique based on global circuit perturbation and examination of a novel theoretical object called the distribution of relative phase shifts (DRPS) could reveal the mechanisms of a cortical circuit at unprecedented detail using extremely sparse neural recordings. We establish feasibility, showing that the method can discriminate between recurrent versus feedforward mechanisms and amongst various recurrent mechanisms using recordings from a handful of cells. The proposed strategy demonstrates that sparse recording coupled with simple perturbation can reveal more about circuit mechanism than can full knowledge of network activity or the synaptic connectivity matrix.
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spelling doaj.art-f4ca2c9348a549d688708f0e42e7b1c82022-12-22T03:52:27ZengeLife Sciences Publications LtdeLife2050-084X2018-07-01710.7554/eLife.33503Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cellsJohn Widloski0https://orcid.org/0000-0003-4236-8957Michael P Marder1Ila R Fiete2https://orcid.org/0000-0003-4738-2539Department of Psychology, The University of California, Berkeley, United StatesDepartment of Physics, The University of Texas, Austin, United StatesDepartment of Physics, The University of Texas, Austin, United States; Center for Learning and Memory, The University of Texas, Austin, United StatesA goal of systems neuroscience is to discover the circuit mechanisms underlying brain function. Despite experimental advances that enable circuit-wide neural recording, the problem remains open in part because solving the ‘inverse problem’ of inferring circuity and mechanism by merely observing activity is hard. In the grid cell system, we show through modeling that a technique based on global circuit perturbation and examination of a novel theoretical object called the distribution of relative phase shifts (DRPS) could reveal the mechanisms of a cortical circuit at unprecedented detail using extremely sparse neural recordings. We establish feasibility, showing that the method can discriminate between recurrent versus feedforward mechanisms and amongst various recurrent mechanisms using recordings from a handful of cells. The proposed strategy demonstrates that sparse recording coupled with simple perturbation can reveal more about circuit mechanism than can full knowledge of network activity or the synaptic connectivity matrix.https://elifesciences.org/articles/33503grid cellscircuit perturbationattractor dynamicsrecurrent networks
spellingShingle John Widloski
Michael P Marder
Ila R Fiete
Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells
eLife
grid cells
circuit perturbation
attractor dynamics
recurrent networks
title Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells
title_full Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells
title_fullStr Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells
title_full_unstemmed Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells
title_short Inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells
title_sort inferring circuit mechanisms from sparse neural recording and global perturbation in grid cells
topic grid cells
circuit perturbation
attractor dynamics
recurrent networks
url https://elifesciences.org/articles/33503
work_keys_str_mv AT johnwidloski inferringcircuitmechanismsfromsparseneuralrecordingandglobalperturbationingridcells
AT michaelpmarder inferringcircuitmechanismsfromsparseneuralrecordingandglobalperturbationingridcells
AT ilarfiete inferringcircuitmechanismsfromsparseneuralrecordingandglobalperturbationingridcells