Evidence map›Paper›PMID 34697075›Full record

ArticleeNeuro

Accurate Localization of Linear Probe Electrode Arrays across Multiple Brains.

Liu D Liu, Susu Chen, Han Hou, Steven J West, Mayo Faulkner, International Brain Laboratory, Michael N Economo, Nuo Li, Karel Svoboda

Open access · goldAbstract read
In one paragraph

Article in eNeuro. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
4.5field-weighted citation impact, top 4% 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

33 citing papers in PubMed, 51 citations in OpenAlex.

  1. Population geometries in frontal cortex coordinate value-based decisions.bioRxiv : the preprint server for biology · 2026
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  17. Gene therapies alleviate absence epilepsy associated withbioRxiv : the preprint server for biology · 2025
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  20. A brainstem map of orofacial rhythms.bioRxiv : the preprint server for biology · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Liu D LiuJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147.ORCID 0000-0002-2213-8057
Susu ChenJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147.
Han HouJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147.ORCID 0000-0002-4590-7891
Steven J WestSainsbury Wellcome Centre, London W1T 4JG, United Kingdom.
Mayo FaulknerUniversity College London, London WC1E 6BT, United Kingdom.
International Brain Laboratory
Michael N EconomoJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147.
Nuo LiBaylor College of Medicine, Houston, TX 77030 nuo.li@bcm.edu svobodak@janelia.hhmi.org.
Karel SvobodaJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147 nuo.li@bcm.edu svobodak@janelia.hhmi.org.ORCID 0000-0002-6670-7362
Howard Hughes Medical Institute · USBoston University · USSainsbury Laboratory · GBUniversity College London · GB

Funding

Cortico-cerebellar interactions underlying motor planning and movementR01NS112312 · NINDS · BAYLOR COLLEGE OF MEDICINE · PI LI, NUO · 2019 to 2023
$1.8M
CIHRHoward Hughes Medical InstituteNINDS NIH HHS R01 NS112312Wellcome Trust 204717/Z/16/ZWellcome Trust 209558/Z/17/Z
6 · The paper itself

Abstract

Recently developed probes for extracellular electrophysiological recordings have large numbers of electrodes on long linear shanks. Linear electrode arrays, such as Neuropixels probes, have hundreds of recording electrodes distributed over linear shanks that span several millimeters. Because of the length of the probes, linear probe recordings in rodents usually cover multiple brain areas. Typical studies collate recordings across several recording sessions and animals. Neurons recorded in different sessions and animals thus have to be aligned to each other and to a standardized brain coordinate system. Here, we evaluate two typical workflows for localization of individual electrodes in standardized coordinates. These workflows rely on imaging brains with fluorescent probe tracks and warping 3D image stacks to standardized brain atlases. One workflow is based on tissue clearing and selective plane illumination microscopy (SPIM), whereas the other workflow is based on serial block-face two-photon (SBF2P) microscopy. In both cases electrophysiological features are then used to anchor particular electrodes along the reconstructed tracks to specific locations in the brain atlas and therefore to specific brain structures. We performed groundtruth experiments, in which motor cortex outputs are labeled with ChR2 and a fluorescence protein. Light-evoked electrical activity and fluorescence can be independently localized. Recordings from brain regions targeted by the motor cortex reveal better than 0.1-mm accuracy for electrode localization, independent of workflow used.

Indexed as

BrainNeuronsAnimalsElectrodesElectrodes, ImplantedElectrophysiological Phenomenaelectrode localizationlightsheet imagingNeuropixels probesserial blockface 2P imaging

Identifiers

PMID34697075
PMCPMC8597948
OpenAlexW3210323664

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.