Evidence map›Paper›PMID 41330839›Full record

ReviewTrends in neurosciences2026

Reconstructing the human brain's wiring diagram from axons up.

Sarah R Heilbronner, R Clay Reid, Tanya K Casta, Franco Pestilli

Abstract readReview
In one paragraph

Review in Trends in neurosciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Review
  3. 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

4 authors.

Sarah R HeilbronnerDepartments of Neurosurgery and Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA; Department of Electrical and Computer Engineering and Neuroengineering Initiative, Rice University, Houston, TX 77005, USA; Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA. Electronic address: sarah.heilbronner@bcm.edu.
R Clay ReidAllen Institute for Brain Science, Seattle, WA 98109, USA.
Tanya K CastaDepartments of Neurosurgery and Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA.
Franco PestilliDepartment of Psychology, Department of Neuroscience, Center for Perceptual Systems, Center for Learning and Memory, University of Texas at Austin, Austin, TX 78712, USA.

Funding

BRAIN CONNECTS: Center for Mesoscale ConnectomicsUM1NS132207 · NINDS · UNIVERSITY OF MINNESOTA · PI TANER AKKIN, Damien A Fair · 2023 to 2026
$12.5M
Label-free optical imaging for human mesoscale connectivity with a focus on deep brain stimulation targetsR01MH126923 · NIMH · UNIVERSITY OF MINNESOTA · PI TANER AKKIN, Sarah Rachel Heilbronner · 2022 to 2026
$2.5M
BRAIN CONNECTS: The Axonal Projectome EXchange (APEX)U24NS140384 · NINDS · UNIVERSITY OF TEXAS AT AUSTIN · PI Franco Pestilli, Anastasia Yendiki · 2025 to 2026
$2.3M
Connectome style neuroimaging in non human primates via novel integrated RF platformsR01EB031765 · NIBIB · UNIVERSITY OF MINNESOTA · PI ZIMMERMANN, JAN · 2022 to 2025
$1.9M
Connectome style neuroimaging in non human primates via novel integrated RF platformsR56EB031765 · NIBIB · UNIVERSITY OF MINNESOTA · PI ZIMMERMANN, JAN · 2021 to 2021
$502k
NIBIB NIH HHS R01 EB031765NIBIB NIH HHS R56 EB031765NIMH NIH HHS R01 MH126923NINDS NIH HHS U24 NS140384NINDS NIH HHS UM1 NS132207
6 · The paper itself

Abstract

The human brain's long-range axonal connections are the scaffolding for communication across functionally distinct areas. Yet knowledge of the human brain's wiring diagram remains limited, largely due to longstanding technological challenges. Recent innovations in microscopy may now enable mapping human brain connectivity at the mesoscale (groups of neurons and their axons). In this review we describe the challenges of generating the wiring diagrams of the human brain, avenues forward, and reasons why such an effort is so important. We argue for building a human mesoscale connectome via a multimodal, multi-species, axon-centric approach, focusing on where axons begin and end to reconstruct connectivity across spatial resolutions. Finally, we consider the utility of a potential exemplar connectome for both clinical applications and research.

Indexed as

AxonsBrainConnectomeNerve NetAnimalsHumansNeural Pathwaysconnectomediffusion MRIneuroanatomytractographytract-tracing

Identifiers

PMID41330839
PMCPMC12695016

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.