World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
93
Citations
41584
World Ranking
10716
National Ranking
5510

John Seibyl publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where John Seibyl sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 483 publications — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

John Seibyl D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where John Seibyl sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 93 D-Index — 47th percentile

47% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

John Seibyl is affiliated with Yale University in the United States. Their research is situated primarily in the field of Medicine, with a focus on Neurology, Radiology, Nuclear Medicine and Imaging, Physiology, Cellular and Molecular Neuroscience, and Cognitive Neuroscience. The main topics covered by their work include Parkinson's Disease Mechanisms and Treatments, Neurological disorders and treatments, Alzheimer's disease research and treatments, Genetics and Neurodevelopmental Disorders, Advanced Neuroimaging Techniques and Applications, Dementia and Cognitive Impairment Research, and Medical Imaging Techniques and Applications.

The scientist has published numerous articles in notable venues. Some of the frequent publication venues include:

  • Zenodo (CERN European Organization for Nuclear Research)
  • Journal of Nuclear Medicine
  • Alzheimer s & Dementia
  • European Journal of Nuclear Medicine and Molecular Imaging
  • Movement Disorders

Seibyl often collaborates with a consistent group of coauthors. Frequent co-authors include Kenneth Marek, David Russell, Osama Sabri, Olivier Barret, and Henryk Barthel.

Significant recent papers authored or co-authored by Seibyl encompass:

  • Assessment of heterogeneity among participants in the Parkinson's Progression Markers Initiative cohort using α-synuclein seed amplification: a cross-sectional study, 2023, The Lancet Neurology
  • A biological definition of neuronal α-synuclein disease: towards an integrated staging system for research, 2024, The Lancet Neurology
  • Assessment of 18F-PI-2620 as a Biomarker in Progressive Supranuclear Palsy, 2020, JAMA Neurology
  • EANM practice guideline/SNMMI procedure standard for dopaminergic imaging in Parkinsonian syndromes 1.0, 2020, European Journal of Nuclear Medicine and Molecular Imaging
  • Validation of Serum Neurofilament Light Chain as a Biomarker of Parkinson's Disease Progression, 2020, Movement Disorders

Best Publications

  • Subanesthetic effects of the noncompetitive NMDA antagonist, ketamine, in humans: Psychotomimetic, perceptual, cognitive, and neuroendocrine responses.

    John H. Krystal;Laurence P. Karper;John P. Seibyl;Glenna K. Freeman

  • MRI-based measurement of hippocampal volume in patients with combat-related posttraumatic stress disorder.

    J. Douglas Bremner;Penny Randall;Tammy M. Scott;Richard A. Bronen

  • The Parkinson Progression Marker Initiative (PPMI)

    Kenneth Marek;Danna Jennings;Shirley Lasch;Andrew Siderowf

  • Single photon emission computerized tomography imaging of amphetamine-induced dopamine release in drug-free schizophrenic subjects

    M Laruelle;A Abi-Dargham;C H van Dyck;R Gil

  • Pramipexole vs Levodopa as initial treatment for Parkinson disease: A randomized controlled trial

    R. Holloway;I. Shoulson;K. Kieburtz;M. McDermott

  • Increased striatal dopamine transmission in schizophrenia: confirmation in a second cohort.

    Abi-Dargham A;Gil R;Krystal J;Baldwin Rm

  • CSF biomarkers of Alzheimer's disease concord with amyloid-β PET and predict clinical progression: A study of fully automated immunoassays in BioFINDER and ADNI cohorts

    Oskar Hansson;John Seibyl;Erik Stomrud;Henrik Zetterberg

  • Pramipexole vs levodopa as initial treatment for Parkinson disease: a 4-year randomized controlled trial.

    Robert G Holloway;Ira Shoulson;Stanley Fahn;Karl Kieburtz

  • Cerebral amyloid-β PET with florbetaben (18F) in patients with Alzheimer's disease and healthy controls: a multicentre phase 2 diagnostic study

    Henryk Barthel;Hermann-Josef Gertz;Stefan Dresel;Oliver Peters

  • The Parkinson's progression markers initiative (PPMI): establishing a PD biomarker cohort

    Kenneth Marek;Sohini Chowdhury;Andrew Siderowf;Shirley Lasch

  • Reduced brain serotonin transporter availability in major depression as measured by [123I]-2β-carbomethoxy-3β-(4-iodophenyl)tropane and single photon emission computed tomography

    Robert T Malison;Lawrence H Price;Robert Berman;Christopher H van Dyck

  • Decreased single-photon emission computed tomographic [123I]beta-CIT striatal uptake correlates with symptom severity in Parkinson's disease.

    J. P. Seibyl;K. L. Marchek;D. Quinlan;K. Sheff

  • Florbetaben PET imaging to detect amyloid beta plaques in Alzheimer's disease: Phase 3 study

    Osama Sabri;Marwan N. Sabbagh;John Seibyl;Henryk Barthel

  • Performance Characteristics of Amyloid PET with Florbetapir F 18 in Patients with Alzheimer's Disease and Cognitively Normal Subjects

    Abhinay D. Joshi;Michael J. Pontecorvo;Chrisopher M. Clark;Alan P. Carpenter

  • [sup 123 I] beta-CIT/SPECT imaging demonstrates bilateral loss of dopamine transporters in hemi-Parkinson's disease

    K. L. Marek;J. P. Seibyl;S. S. Zoghbi;Y. Zea-Ponce

  • Single photon emission computed tomographic imaging demonstrates loss of striatal dopamine transporters in Parkinson disease.

    R B Innis;J P Seibyl;B E Scanley;M Laruelle

  • [123I]β-CIT SPECT imaging assessment of the rate of Parkinson’s disease progression

    K. Marek;R. Innis;C. van Dyck;B. Fussell

  • Clinical significance of neurological soft signs in schizophrenia: Factor analysis of the Neurological Evaluation Scale

    R. Andrew Sewell;Edward B. Perry;Laurence P. Karper;Morris D. Bell

  • Association of Cerebrospinal Fluid β-Amyloid 1-42, T-tau, P-tau181, and α-Synuclein Levels With Clinical Features of Drug-Naive Patients With Early Parkinson Disease

    Ju-Hee Kang;Ju-Hee Kang;David J. Irwin;Alice S. Chen-Plotkin;Andrew Siderowf

  • The role of radiotracer imaging in Parkinson disease

    B. Ravina;D. Eidelberg;J. E. Ahlskog;R. L. Albin

Frequent Co-Authors

Kenneth Marek
Kenneth Marek Institute for Neurodegenerative Disorders
Gilles Tamagnan
Gilles Tamagnan Yale University
Robert B. Innis
Robert B. Innis National Institutes of Health
Danna Jennings
Danna Jennings Denali Therapeutics (United States)
Henryk Barthel
Henryk Barthel Leipzig University
Dennis S. Charney
Dennis S. Charney Icahn School of Medicine at Mount Sinai
Kelly P. Cosgrove
Kelly P. Cosgrove Yale University
John H. Krystal
John H. Krystal Yale University
Robert T. Malison
Robert T. Malison Yale University

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