Evidence map›Paper›PMID 22674263›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

State-dependent spike and local field synchronization between motor cortex and substantia nigra in hemiparkinsonian rats.

Elena Brazhnik, Ana V Cruz, Irene Avila, Marian I Wahba, Nikolay Novikov, Neda M Ilieva, Alex J McCoy, Colin Gerber, Judith R Walters

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 1 pooled it
7.6field-weighted citation impact, top 2% 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

76 citing papers in PubMed, 1 synthesis or guideline pooled it, 131 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Dysfunction of motor cortices in Parkinson's disease.Cerebral cortex (New York, N.Y. : 1991) · 2024
    Review
  7. Article
  8. Article
  9. Article
  10. Distinctive Effects of D1 and D2 Receptor Agonists on Cortico-Basal Ganglia Oscillations in a Rodent Model of L-DOPA-Induced Dyskinesia.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Article
  11. Classification of Parkinson's disease motor phenotype: a machine learning approach.Journal of neural transmission (Vienna, Austria : 1996) · 2022
    Article
  12. Combining CRISPR-Cas9 and brain imaging to study the link from genes to molecules to networks.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Input Zone-Selective Dysrhythmia in Motor Thalamus after Dopamine Depletion.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  18. Article
  19. Article
  20. Article

16 more citing papers are in PubMed but not listed here.

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

9 authors at 2 institutions in 1 country.

Elena BrazhnikNeurophysiological Pharmacology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892-3702, USA.
Ana V Cruz
Irene Avila
Marian I Wahba
Nikolay Novikov
Neda M Ilieva
Alex J McCoy
Colin Gerber
Judith R Walters
National Institute of Neurological Disorders and Stroke · USNational Institutes of Health · US

Funding

Pharmacology And Physiology Of The Substantia Nigra And Basal GangliaZIANS002139 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI WALTERS, JUDITH RICHMOND · 2009 to 2021
$14.3M
Intramural NIH HHS ZIA NS002139
6 · The paper itself

Abstract

Excessive beta frequency oscillatory and synchronized activity has been reported in the basal ganglia of parkinsonian patients and animal models of the disease. To gain insight into processes underlying this activity, this study explores relationships between oscillatory activity in motor cortex and basal ganglia output in behaving rats after dopamine cell lesion. During inattentive rest, 7 d after lesion, increases in motor cortex-substantia nigra pars reticulata (SNpr) coherence emerged in the 8-25 Hz range, with significant increases in local field potential (LFP) power in SNpr but not motor cortex. In contrast, during treadmill walking, marked increases in both motor cortex and SNpr LFP power, as well as coherence, emerged in the 25-40 Hz band with a peak frequency at 30-35 Hz. Spike-triggered waveform averages showed that 77% of SNpr neurons, 77% of putative cortical interneurons, and 44% of putative pyramidal neurons were significantly phase-locked to the increased cortical LFP activity in the 25-40 Hz range. Although the mean lag between cortical and SNpr LFPs fluctuated around zero, SNpr neurons phase-locked to cortical LFP oscillations fired, on average, 17 ms after synchronized spiking in motor cortex. High coherence between LFP oscillations in cortex and SNpr supports the view that cortical activity facilitates entrainment and synchronization of activity in basal ganglia after loss of dopamine. However, the dramatic increases in cortical power and relative timing of phase-locked spiking in these areas suggest that additional processes help shape the frequency-specific tuning of the basal ganglia-thalamocortical network during ongoing motor activity.

Indexed as

Cortical SynchronizationElectroencephalographyAnimalsAntiparkinson AgentsData Interpretation, StatisticalDopamineDopamine AntagonistsElectrodes, ImplantedElectromyographyLevodopaMaleMembrane PotentialsMotor ActivityMotor CortexParkinson Disease, SecondaryRatsAntiparkinson AgentsDopamineDopamine AntagonistsLevodopa

Identifiers

PMID22674263
PMCPMC3423905
OpenAlexW2066976976

What OpenQuestion holds

Textmetadata
LicenceTDM
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.