Evidence map›Paper›PMID 30524258›Full record

ArticleFrontiers in human neuroscience2018

Watch, Imagine, Attempt: Motor Cortex Single-Unit Activity Reveals Context-Dependent Movement Encoding in Humans With Tetraplegia.

Carlos E Vargas-Irwin, Jessica M Feldman, Brandon King, John D Simeral, Brittany L Sorice, Erin M Oakley, Sydney S Cash, Emad N Eskandar, Gerhard M Friehs, Leigh R Hochberg and 1 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Frontiers in human neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00912041 (BrainGate2), which is not on this map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.4field-weighted citation impact, top 11% 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.

NCT00912041 narecruitingnot on this map

BrainGate2: Feasibility Study of an Intracortical Neural Interface System for Persons With Tetraplegia

TypeinterventionalSponsorLeigh R. Hochberg, MD, PhD.Ran2009 to 2038Enrolled27ConditionsTetraplegia, Spinal Cord Injuries, Amyotrophic Lateral Sclerosis, Brain Stem InfarctionsArmsPlacement of the BrainGate2 sensor(s) into the motor-related cortex
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 43 citations in OpenAlex.

  1. Observation-related activity in the human motor cortex increases with effector anthropomorphicity.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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  3. Limb state accounts for differences between motor imagery and action in motor cortex.medRxiv : the preprint server for health sciences · 2026
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  9. An Investigation of Manifold-Based Direct Control for a Brain-to-Body Neural Bypass.IEEE open journal of engineering in medicine and biology · 2024
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  12. Review
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  18. Causes and consequences of representational drift.Current opinion in neurobiology · 2019
    Review
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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

11 authors at 7 institutions in 1 country.

Carlos E Vargas-IrwinDepartment of Neuroscience, Brown University, Providence, RI, United States.
Jessica M FeldmanDepartment of Neuroscience, Brown University, Providence, RI, United States.
Brandon KingDepartment of Neuroscience, Brown University, Providence, RI, United States.
John D SimeralRobert J. and Nancy D. Carney Institute for Brain Science, Brown University, Providence, RI, United States.
Brittany L SoriceCenter for Neurotechnology and Neurorecovery (CNTR), Department of Neurology, Massachusetts General Hospital, Boston, MA, United States.
Erin M OakleyCenter for Neurotechnology and Neurorecovery (CNTR), Department of Neurology, Massachusetts General Hospital, Boston, MA, United States.
Sydney S CashCenter for Neurotechnology and Neurorecovery (CNTR), Department of Neurology, Massachusetts General Hospital, Boston, MA, United States.
Emad N EskandarDepartment of Neurosurgery, Harvard Medical School and Massachusetts General Hospital, Boston, MA, United States.
Gerhard M FriehsDepartment of Neurosurgery, Rhode Island Hospital, Providence, RI, United States.
Leigh R HochbergRobert J. and Nancy D. Carney Institute for Brain Science, Brown University, Providence, RI, United States.
John P DonoghueDepartment of Neuroscience, Brown University, Providence, RI, United States.
Brown University · USHarvard University · USMassachusetts General Hospital · USRehabilitation Research and Development Service · USAllen Institute for Brain Science · USCenter for Neuro-Oncology · USRhode Island Hospital · US

Funding

Restoring Communication with an Intracortical Neural Interface SystemR01DC009899 · NIDCD · MASSACHUSETTS GENERAL HOSPITAL · PI HOCHBERG, LEIGH R · 2009 to 2017
$7.0M
STATIC AND DYNAMIC ORGANIZATION OF PRIMATE MOTOR CORTEXR01NS025074 · NINDS · BROWN UNIVERSITY · PI DONOGHUE, JOHN P · 1987 to 2016
$4.7M
NIDCD NIH HHS R01 DC009899NINDS NIH HHS R01 NS025074
6 · The paper itself

Abstract

Planning and performing volitional movement engages widespread networks in the human brain, with motor cortex considered critical to the performance of skilled limb actions. Motor cortex is also engaged when actions are observed or imagined, but the manner in which ensembles of neurons represent these volitional states (VoSs) is unknown. Here we provide direct demonstration that observing, imagining or attempting action activates shared neural ensembles in human motor cortex. Two individuals with tetraplegia (due to brainstem stroke or amyotrophic lateral sclerosis, ALS) were verbally instructed to watch, imagine, or attempt reaching actions displayed on a computer screen. Neural activity in the precentral gyrus incorporated information about both cognitive state and movement kinematics; the three conditions presented overlapping but unique, statistically distinct activity patterns. These findings demonstrate that individual neurons in human motor cortex reflect information related to sensory inputs and VoS in addition to movement features, and are a key part of a broader network linking perception and cognition to action.

Indexed as

humanmicroelectrode arraymotor cortexsingle unittetraplegia

Identifiers

PMID30524258
PMCPMC6262367
OpenAlexW2901955677

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.