Cited by 361Cell Image Analysis TechniquesAdvanced Neuroimaging Techniques and ApplicationsNeuroscience and Neuropharmacology Research

A petavoxel fragment of human cerebral cortex reconstructed at nanoscale resolution

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Shapson-Coe, Alexander, Januszewski, Michał, Berger, Daniel R., Pope, Art, Wu, Yuelong, Blakely, Tim, Schalek, Richard L., Li, Peter H. +23 more·2024·Science

Abstract

To fully understand how the human brain works, knowledge of its structure at high resolution is needed. Presented here is a computationally intensive reconstruction of the ultrastructure of a cubic millimeter of human temporal cortex that was surgically removed to gain access to an underlying epileptic focus. It contains about 57,000 cells, about 230 millimeters of blood vessels, and about 150 million synapses and comprises 1.4 petabytes. Our analysis showed that glia outnumber neurons 2:1, oligodendrocytes were the most common cell, deep layer excitatory neurons could be classified on the basis of dendritic orientation, and among thousands of weak connections to each neuron, there exist rare powerful axonal inputs of up to 50 synapses. Further studies using this resource may bring valuable insights into the mysteries of the human brain.

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Registry

Crossref · 10.1126/science.adk4858

Cites

83 of 85 references verified0 citation errors · 0 not checkable

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  • Technologies developed for FlyWire have already been applied to millimetre-scale chunks of mammalian brain, which are more than 50 times larger in volume than a fly brain.

    “Technologies developed for FlyWire have already been applied to millimetre-scale chunks of mammalian brain4,5, which are more than 50 times larger in volume than a fly brain.”

    From Neuronal wiring diagram of an adult brain (2024) · cites this paper as [5]

    The Abstract and Methods (Reconstruction Pipeline; no page supplied) describe a cubic-millimetre reconstruction of human cortex using automated segmentation and proofreading tools. The cited paper does not identify those tools as technologies developed for FlyWire, so it supports the mammalian-brain application but not the claimed provenance. The more-than-50-times comparison follows the citations and is not judged as attributed to this source. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • Given the high density of synapses, dendrites, and cellular processes in cortex, even subtle activity-related dendritic-spine "twitching" may alter the diffusion environment of water molecules.

    “Given the high density of synapses (8 108/mm3), dendrites (400 m/mm3), and cellular processes in cortex (Shapson-Coe et al., 2024), even subtle activity-related dendritic-spine “twitching” (Crick, 1982) may alter the diffusion environment of water molecules (Halpain, 2000; Le Bihan, 2007).”

    From 40 Years of diffusion MRI in the brain: From history to emerging frontiers (2026) · cites this paper as Shapson-Coe et al., 2024

    The Results (Cellular and Synaptic Organization; page unavailable) document abundant synapses and dendritic processes in the reconstructed cortex. But the paper reports about 150 million synapses in an approximately cubic-millimeter sample, not the cited 8 × 10^8/mm³, and the passages do not give 400 m/mm³ of dendrites. The spine movement and water-diffusion suggestion is attributed to other citations in the sentence, not to Shapson-Coe et al. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

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Cites

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Research works printed but not linked: 2

  1. [73]Sheehan DC, Hrapchak BB, Theory and practice of histochemistry. CV Mosby, St Louis (1980).
  2. [89]Chen T, Kornblith S, Norouzi M, Hinton G, “ A Simple Framework for Contrastive Learning of Visual Representations” in Proceedings of the 37th International Conference on Machine Learning (2020; https://proceedings.mlr.press/v119/chen20j.html), 119, pp. 1597– 1607.

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Authors
Shapson-Coe, A., Januszewski, M., Berger, D. R., Pope, A., Wu, Y., Blakely, T., Schalek, R. L., Li, P. H., Wang, S., Maitin-Shepard, J., Karlupia, N., Dorkenwald, S., Sjostedt, E., Leavitt, L., Lee, D., Troidl, J., Collman, F., Bailey, L., Fitzmaurice, A., Kar, R., Field, B., Wu, H., Wagner-Carena, J., Aley, D., Lau, J., Lin, Z., Wei, D., Pfister, H., Peleg, A., Jain, V., & Lichtman, J. W.
Affiliations
  • Harvard University (US)
  • Google (Switzerland) (CH)
  • Google (United States) (US)
  • Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA 02138, USA.
  • Allen Institute for Brain Science (US)
  • Northeastern University (US)
  • Boston College (US)
Corresponding author
  • Shapson-Coe, Alexander
  • Januszewski, Michał
  • Berger, Daniel R.
  • Jain, Viren
  • Lichtman, Jeff W.
Venue
Science
Published
2024-05-10
Volume
384
Issue
6696
Pages
eadk4858-eadk4858
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W4396780205
Cited by
361
References
82
Citations by year
2026: 123 · 2025: 151 · 2024: 77 · 2023: 6 · 2022: 3 · 2021: 1
FWCI
67.69
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Science Foundation (2014862, CREST, 2124179)
  • Broad Institute
  • National Institutes of Health (NS104653)
  • Intelligence Advanced Research Projects Activity (D16PC0005, D16PC00004)
  • Stanley Center for Psychiatric Research, Broad Institute
  • Interior Business Center
  • National Institute of Mental Health (P50MH094271, MH094271, UG3MH123386, RF1MH125932)
  • National Institute of Neurological Disorders and Stroke (U24NS109102, UM1NS132250, U19NS104653)
  • National Institute of Biomedical Imaging and Bioengineering (U01EB026996)
  • Core Research for Evolutional Science and Technology
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Cell Image Analysis Techniques
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
human cerebral cortex, temporal cortex, synapses, glia, oligodendrocytes, excitatory neurons, dendrite orientation, epileptogenic focus
MeSH terms
Axons, Cerebral Cortex, Dendrites, Humans, Microscopy, Neuroglia, Neurons, Oligodendroglia, Synapses, Temporal Lobe

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