Evidence map›Paper›PMID 24971060›Full record

ArticleFrontiers in neuroengineering2014

Deep brain stimulation macroelectrodes compared to multiple microelectrodes in rat hippocampus.

Sharanya Arcot Desai, Claire-Anne Gutekunst, Steve M Potter, Robert E Gross

Open access · hybridAbstract read
In one paragraph

Article in Frontiers in neuroengineering, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

20 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
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  9. Cleanroom strategies for micro- and nano-fabricating flexible implantable neural electronics.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2022
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  13. Review
  14. The Future of Neuroscience: Flexible and Wireless Implantable Neural Electronics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Review
  15. Review
  16. Chronically Implanted Microelectrodes CauseFrontiers in neuroscience · 2019
    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

4 authors at 3 institutions in 1 country.

Sharanya Arcot DesaiLaboratory for Neuroengineering, Georgia Institute of Technology, Atlanta GA, USA ; The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta GA, USA.
Claire-Anne GutekunstDepartment of Neurosurgery, Emory University School of Medicine, Atlanta GA, USA.
Steve M PotterLaboratory for Neuroengineering, Georgia Institute of Technology, Atlanta GA, USA ; The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta GA, USA.
Robert E GrossThe Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta GA, USA ; Department of Neurosurgery, Emory University School of Medicine, Atlanta GA, USA.
Emory University · USGeorgia Institute of Technology · USThe Wallace H. Coulter Department of Biomedical Engineering · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microelectrode arrays (wire diameter <50 μm) were compared to traditional macroelectrodes for deep brain stimulation (DBS). Understanding the neuronal activation volume may help solve some of the mysteries associated with DBS, e.g., its mechanisms of action. We used c-fos immunohistochemistry to investigate neuronal activation in the rat hippocampus caused by multi-micro- and macroelectrode stimulation. At ± 1V stimulation at 25 Hz, microelectrodes (33 μm diameter) had a radius of activation of 100 μm, which is 50% of that seen with 150 μm diameter macroelectrode stimulation. Macroelectrodes activated about 5.8 times more neurons than a single microelectrode, but displaced ~20 times more neural tissue. The sphere of influence of stimulating electrodes can be significantly increased by reducing their impedance. By ultrasonic electroplating (sonicoplating) the microelectrodes with platinum to increase their surface area and reduce their impedance by an order of magnitude, the radius of activation increased by 50 μm and more than twice the number of neurons were activated within this increased radius compared to unplated microelectrodes. We suggest that a new approach to DBS, one that uses multiple high-surface area microelectrodes, may be more therapeutically effective due to increased neuronal activation.

Indexed as

deep brain stimulationelectroplatinghippocampusimmediate early gene (IEG)macroelectrodesmultielectrode array (MEA)neuronal activation

Identifiers

PMID24971060
PMCPMC4054883
OpenAlexW1964899820

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.