Evidence map›Paper›PMID 21613593›Full record

ArticleJournal of neurophysiology2011

Statistical assessment of the stability of neural movement representations.

Ian H Stevenson, Anil Cherian, Brian M London, Nicholas A Sachs, Eric Lindberg, Jacob Reimer, Marc W Slutzky, Nicholas G Hatsopoulos, Lee E Miller, Konrad P Kording

Abstract readComparative Study
In one paragraph

Article in Journal of neurophysiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed.

  1. Trial
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  4. Mechanically adaptive and deployable intracortical probes enable long-term neural electrophysiological recordings.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  9. Review
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  16. Maintained Representations of the Ipsilateral and Contralateral Limbs during Bimanual Control in Primary Motor Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  17. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Ian H StevensonDepartment of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL 60611, USA.
Anil Cherian
Brian M London
Nicholas A Sachs
Eric Lindberg
Jacob Reimer
Marc W Slutzky
Nicholas G Hatsopoulos
Lee E Miller
Konrad P Kording

Funding

MULTIDISCIPLINARY CLINICAL AND TRANSLATIONAL SCIENCE (MCTS) PROGRAM (UL1)UL1RR025741 · NCRR · NORTHWESTERN UNIVERSITY AT CHICAGO · PI GREENLAND, PHILIP · 2008 to 2011
$24.7M
Transformation of Planned Hand Movements into Motor Commands by the Motor CortexP01NS044393 · NINDS · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI GRAFTON, SCOTT THOMAS · 2003 to 2013
$12.2M
Development of a Bidirectional Brain Machine InterfaceR01NS048845 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MILLER, LEE · 2005 to 2014
$6.7M
Coding of Action by Motor & Premotor Cortical EnsemblesR01NS045853 · NINDS · UNIVERSITY OF CHICAGO · PI HATSOPOULOS, NICHOLAS G · 2004 to 2017
$4.5M
The role of uncertainty in human motor learning and adaptationR01NS063399 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI KORDING, KONRAD P. · 2009 to 2019
$2.8M
Action Potentials vs. Field Potentials as Inputs to a Brain-Machine InterfaceK08NS060223 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SLUTZKY, MARC W. · 2007 to 2011
$839k
NCRR NIH HHS UL1RR0254741NCRR NIH HHS UL1 RR025741NINDS NIH HHS 1R01-NS-063399NINDS NIH HHS 2P01-NS-044393NINDS NIH HHS K08-NS-060223NINDS NIH HHS R01 NS045853NINDS NIH HHS R01-NS-048845NINDS NIH HHS R01 NS063399NINDS NIH HHS R01NS45853
6 · The paper itself

Abstract

In systems neuroscience, neural activity that represents movements or sensory stimuli is often characterized by spatial tuning curves that may change in response to training, attention, altered mechanics, or the passage of time. A vital step in determining whether tuning curves change is accounting for estimation uncertainty due to measurement noise. In this study, we address the issue of tuning curve stability using methods that take uncertainty directly into account. We analyze data recorded from neurons in primary motor cortex using chronically implanted, multielectrode arrays in four monkeys performing center-out reaching. With the use of simulations, we demonstrate that under typical experimental conditions, the effect of neuronal noise on estimated preferred direction can be quite large and is affected by both the amount of data and the modulation depth of the neurons. In experimental data, we find that after taking uncertainty into account using bootstrapping techniques, the majority of neurons appears to be very stable on a timescale of minutes to hours. Lastly, we introduce adaptive filtering methods to explicitly model dynamic tuning curves. In contrast to several previous findings suggesting that tuning curves may be in constant flux, we conclude that the neural representation of limb movement is, on average, quite stable and that impressions to the contrary may be largely the result of measurement noise.

Indexed as

Electrodes, ImplantedModels, NeurologicalAction PotentialsAnimalsHaplorhiniMotor CortexMovementNeurons

Identifiers

PMID21613593
PMCPMC3154833

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.