Evidence map›Paper›PMID 23300606›Full record

ArticlePloS one2012

Decoding hindlimb movement for a brain machine interface after a complete spinal transection.

Anitha Manohar, Robert D Flint, Eric Knudsen, Karen A Moxon

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
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

18 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
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  9. Engagement of the Rat Hindlimb Motor Cortex across Natural Locomotor Behaviors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
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  15. Dissociating movement from movement timing in the rat primary motor cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  16. 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

4 authors at 1 institution in 1 country.

Anitha ManoharSchool of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, USA.
Robert D Flint
Eric Knudsen
Karen A Moxon
Drexel University · US

Funding

Brain reorganization after spinal cord injuryR01NS057419 · NINDS · DREXEL UNIVERSITY · PI MOXON, KAREN A · 2009 to 2012
$1.3M
NINDS NIH HHS NS057419NINDS NIH HHS R01 NS057419
6 · The paper itself

Abstract

Stereotypical locomotor movements can be made without input from the brain after a complete spinal transection. However, the restoration of functional gait requires descending modulation of spinal circuits to independently control the movement of each limb. To evaluate whether a brain-machine interface (BMI) could be used to regain conscious control over the hindlimb, rats were trained to press a pedal and the encoding of hindlimb movement was assessed using a BMI paradigm. Off-line, information encoded by neurons in the hindlimb sensorimotor cortex was assessed. Next neural population functions, or weighted representations of the neuronal activity, were used to replace the hindlimb movement as a trigger for reward in real-time (on-line decoding) in three conditions: while the animal could still press the pedal, after the pedal was removed and after a complete spinal transection. A novel representation of the motor program was learned when the animals used neural control to achieve water reward (e.g. more information was conveyed faster). After complete spinal transection, the ability of these neurons to convey information was reduced by more than 40%. However, this BMI representation was relearned over time despite a persistent reduction in the neuronal firing rate during the task. Therefore, neural control is a general feature of the motor cortex, not restricted to forelimb movements, and can be regained after spinal injury.

Indexed as

Brain-Computer InterfacesAlgorithmsAnimalsBehavior, AnimalBody Mass IndexBrainElectrophysiologyForelimbGaitHindlimbMaleMotor CortexMovementNeuronsRatsRats, Long-Evans

Identifiers

PMID23300606
PMCPMC3531410
OpenAlexW2078740132

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.