Evidence map›Paper›PMID 31028046›Full record

ArticleeNeuro

Transduction of the Geomagnetic Field as Evidenced from alpha-Band Activity in the Human Brain.

Connie X Wang, Isaac A Hilburn, Daw-An Wu, Yuki Mizuhara, Christopher P Cousté, Jacob N H Abrahams, Sam E Bernstein, Ayumu Matani, Shinsuke Shimojo, Joseph L Kirschvink

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 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
23.4field-weighted citation impact, top 1% 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

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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  5. Article
  6. Article
  7. Quantum Effects in Evolution: Terrestrial Fine-Tuning of Magnetic Parameters.Computational and structural biotechnology journal · 2026
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
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  16. Article
  17. Cellular and Molecular Effects of Magnetic Fields.International journal of molecular sciences · 2024
    Review
  18. On the evolutionary trail of MagRs.Zoological research · 2024
    Article
  19. Review
  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

10 authors at 4 institutions in 2 countries.

Connie X WangComputation and Neural Systems, California Institute of Technology, Pasadena, CA, 91125.
Isaac A HilburnDivision of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, 91125.
Daw-An WuComputation and Neural Systems, California Institute of Technology, Pasadena, CA, 91125.ORCID 0000-0003-4296-3369
Yuki MizuharaGraduate School of Information Science and Technology, The University of Tokyo, Bunkyo-ku, Tokyo 113-8654, Japan.
Christopher P CoustéDivision of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, 91125.
Jacob N H AbrahamsDivision of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, 91125.ORCID 0000-0003-2270-0801
Sam E BernsteinDepartment of Computer Science, Princeton University, Princeton, NJ 08544.ORCID 0000-0002-8425-1370
Ayumu MataniGraduate School of Information Science and Technology, The University of Tokyo, Bunkyo-ku, Tokyo 113-8654, Japan.
Shinsuke ShimojoComputation and Neural Systems, California Institute of Technology, Pasadena, CA, 91125 hmre.contact@caltech.edu pmag.contact@caltech.edu.
Joseph L KirschvinkDivision of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, 91125 hmre.contact@caltech.edu pmag.contact@caltech.edu.ORCID 0000-0001-9486-6689
California Institute of Technology · USThe University of Tokyo · JPPrinceton University · USTokyo Institute of Technology · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Magnetoreception, the perception of the geomagnetic field, is a sensory modality well-established across all major groups of vertebrates and some invertebrates, but its presence in humans has been tested rarely, yielding inconclusive results. We report here a strong, specific human brain response to ecologically-relevant rotations of Earth-strength magnetic fields. Following geomagnetic stimulation, a drop in amplitude of electroencephalography (EEG) alpha-oscillations (8-13 Hz) occurred in a repeatable manner. Termed alpha-event-related desynchronization (alpha-ERD), such a response has been associated previously with sensory and cognitive processing of external stimuli including vision, auditory and somatosensory cues. Alpha-ERD in response to the geomagnetic field was triggered only by horizontal rotations when the static vertical magnetic field was directed downwards, as it is in the Northern Hemisphere; no brain responses were elicited by the same horizontal rotations when the static vertical component was directed upwards. This implicates a biological response tuned to the ecology of the local human population, rather than a generic physical effect. Biophysical tests showed that the neural response was sensitive to static components of the magnetic field. This rules out all forms of electrical induction (including artifacts from the electrodes) which are determined solely on dynamic components of the field. The neural response was also sensitive to the polarity of the magnetic field. This rules out free-radical "quantum compass" mechanisms like the cryptochrome hypothesis, which can detect only axial alignment. Ferromagnetism remains a viable biophysical mechanism for sensory transduction and provides a basis to start the behavioral exploration of human magnetoreception.

Indexed as

Magnetic FieldsAdultAlpha RhythmAwarenessElectroencephalography Phase SynchronizationFerrosoferric OxideHumansPerceptionPhysical StimulationFerrosoferric Oxidealpha-ERDbiogenic magnetitebiophysicsEEGmagnetoreceptionquantum compass

Identifiers

PMID31028046
PMCPMC6494972
OpenAlexW2896878161

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.