Evidence map›Paper›PMID 33600850›Full record

ReviewJournal of neuroscience methods2021

Through the looking glass: A review of cranial window technology for optical access to the brain.

Samuel W Cramer, Russell E Carter, Justin D Aronson, Suhasa B Kodandaramaiah, Timothy J Ebner, Clark C Chen

Abstract readReview
In one paragraph

Review in Journal of neuroscience methods, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
–field-weighted citation impact
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

51 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Cortical OProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. A multimodal digital twin for autonomous micro-drilling in scientific exploration.International journal of computer assisted radiology and surgery · 2025
    Article
  12. Review
  13. Neurophotonics · 2025
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

6 authors.

Samuel W CramerDepartment of Neurosurgery, University of Minnesota, 420 Delaware St SE, Mayo D429, MMC 96, Twin Cities, Minneapolis, MN, 55455, USA.
Russell E CarterDepartment of Neuroscience, University of Minnesota, Twin Cities, Room 421, 2001 Sixth Street S.E., Minneapolis, MN, 55455 MN, USA.
Justin D AronsonDepartment of Neuroscience, University of Minnesota, Twin Cities, Room 421, 2001 Sixth Street S.E., Minneapolis, MN, 55455 MN, USA.
Suhasa B KodandaramaiahDepartment of Mechanical Engineering, University of Minnesota, Twin Cities, MN, USA; Department of Biomedical Engineering, University of Minnesota, Twin Cities, MN, USA; Graduate Program in Neuroscience, University of Minnesota, Twin Cities, MN, USA.
Timothy J EbnerDepartment of Neuroscience, University of Minnesota, Twin Cities, Room 421, 2001 Sixth Street S.E., Minneapolis, MN, 55455 MN, USA. Electronic address: ebner001@umn.edu.
Clark C ChenDepartment of Neurosurgery, University of Minnesota, 420 Delaware St SE, Mayo D429, MMC 96, Twin Cities, Minneapolis, MN, 55455, USA. Electronic address: ccchen@umn.edu.

Funding

Viral Innovation CoreP30DA048742 · NIDA · UNIVERSITY OF MINNESOTA · PI Mark John Thomas · 2020 to 2026
$19.0M
Miniaturized head-mounted device for pan-cortical electro-optical activity monitoringR01NS111028 · NINDS · UNIVERSITY OF MINNESOTA · PI KODANDARAMAIAH, SUHASA B, SWISHER, SARAH L · 2019 to 2023
$2.4M
Full human gene-replacement mouse models of ADRDsR33NS115089 · NINDS · UNIVERSITY OF MINNESOTA · PI EBNER, TIMOTHY J, KOOB, MICHAEL D · 2021 to 2021
$2.3M
Opto-Crown: Transparent skulls with embedded optics for cortex-wide cellular resolution imaging in freely moving miceRF1NS113287 · NINDS · UNIVERSITY OF MINNESOTA · PI BOYDEN, EDWARD S., KODANDARAMAIAH, SUHASA B · 2019 to 2019
$2.0M
3D Printed Multifunctional Brain Windows for Simultaneous Optical Imaging and ElectrophysiologyR42NS110165 · NINDS · APPLIED UNIVERSAL DYNAMICS CORPORATION · PI KODANDARAMAIAH, SUHASA B, MCALPINE, MICHAEL · 2019 to 2023
$1.8M
Full human gene-replacement mouse models of ADRDsR61NS115089 · NINDS · UNIVERSITY OF MINNESOTA · PI EBNER, TIMOTHY J, KOOB, MICHAEL D · 2019 to 2019
$1.5M
NIDA NIH HHS P30 DA048742NINDS NIH HHS R01 NS111028NINDS NIH HHS R33 NS115089NINDS NIH HHS R42 NS110165NINDS NIH HHS R61 NS115089NINDS NIH HHS RF1 NS113287
6 · The paper itself

Abstract

Deciphering neurologic function is a daunting task, requiring understanding the neuronal networks and emergent properties that arise from the interactions among single neurons. Mechanistic insights into neuronal networks require tools that simultaneously assess both single neuron activity and the consequent mesoscale output. The development of cranial window technologies, in which the skull is thinned or replaced with a synthetic optical interface, has enabled monitoring neuronal activity from subcellular to mesoscale resolution in awake, behaving animals when coupled with advanced microscopy techniques. Here we review recent achievements in cranial window technologies, appraise the relative merits of each design and discuss the future research in cranial window design.

Indexed as

BrainSkullAnimalsMicroscopyNeuronsTechnologyCranial windowImaging windowIn vivo imagingNeuromodulationNeurophysiologyOptical imaging

Identifiers

PMID33600850
PMCPMC8100903

What OpenQuestion holds

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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.