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Leon J. Thal

D-Index & Metrics

Neuroscience

D-Index
128
Citations
72649
World Ranking
296
National Ranking
179

Medicine

D-Index
128
Citations
72652
World Ranking
2676
National Ranking
1494

Leon J. Thal publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where Leon J. Thal sits on this spectrum.

38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientists 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38 publications 887+

This scientist: 418 publications — 92nd percentile

92% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 887 publications or more.

Leon J. Thal D-index placement in Neuroscience in 2026

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

30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30 D-Index 163+

This scientist: 128 D-Index — 97th percentile

97% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

Research.com Recognitions

  • 2004 - Sedgwick Memorial Medal, American Public Health Association
  • 2004 - Potamkin Prize for Research in Pick's, Alzheimer's, and Related Diseases, American Academy of Neurology

Overview

Leon J. Thal was affiliated with the University of California, San Diego in the United States. Their academic work focused primarily on Medicine and Neuroscience, with notable contributions in Cognitive Neuroscience, Psychiatry and Mental Health, Physiology, Molecular Biology, and Radiology, Nuclear Medicine, and Imaging.

The research topics covered by Leon J. Thal included:

  • Dementia and Cognitive Impairment Research
  • Functional Brain Connectivity Studies
  • Alzheimer's Disease Research and Treatments
  • Neural Dynamics and Brain Function
  • Advanced Neuroimaging Techniques and Applications
  • Bayesian Modeling and Causal Inference
  • Biomedical Text Mining and Ontologies

Leon J. Thal's publication record showed frequent contributions to several journals including GeroScience, Scientific Reports, Communications Medicine, Nature Aging, and Alzheimer's Research & Therapy.

Recent publications included:

  • Challenges and Opportunities with Causal Discovery Algorithms: Application to Alzheimer's Pathophysiology, 2020, Scientific Reports
  • Deep learning-based polygenic risk analysis for Alzheimer's disease prediction, 2023, Communications Medicine
  • An IL1RL1 genetic variant lowers soluble ST2 levels and the risk effects of APOE-ε4 in female patients with Alzheimer's disease, 2022, Nature Aging
  • The trend of disruption in the functional brain network topology of Alzheimer's disease, 2022, Scientific Reports
  • A novel spatiotemporal graph convolutional network framework for functional connectivity biomarkers identification of Alzheimer's disease, 2024, Alzheimer's Research & Therapy

The scientist had frequent collaborations with several coauthors, prominently including Michael W. Weiner, Zaven S. Khachaturian, Andrew J. Saykin, Laurel Beckett, and John C. Morris.

Leon J. Thal was recognized by receiving notable awards such as the Sedgwick Memorial Medal from the American Public Health Association in 2004 and the Potamkin Prize for Research in Pick's, Alzheimer's, and Related Diseases by the American Academy of Neurology in 2004.

Best Publications

  • Current concepts in mild cognitive impairment.

    Ronald C. Petersen;Rachelle Doody;Alexander Kurz;Richard C. Mohs

  • A controlled trial of selegiline, alpha-tocopherol, or both as treatment for Alzheimer's disease. The Alzheimer's Disease Cooperative Study

    Mary Sano;Christopher Ernesto;Ronald G. Thomas;Melville R. Klauber

  • Estrogen plus progestin and the incidence of dementia and mild cognitive impairment in postmenopausal women: the Women's Health Initiative Memory Study: a randomized controlled trial.

    Sally A. Shumaker;Claudine Legault;Stephen R. Rapp;Leon Thal

  • Vitamin E and Donepezil for the Treatment of Mild Cognitive Impairment

    Ronald C. Petersen;Ronald G. Thomas;Michael Grundman;David Bennett

  • Alzheimer's Disease Neuroimaging Initiative

    Susanne G. Mueller;Michael W. Weiner;Leon J. Thal;Ronald C. Petersen

  • EPIDERMAL GROWTH FACTOR AND FIBROBLAST GROWTH FACTOR-2 HAVE DIFFERENT EFFECTS ON NEURAL PROGENITORS IN THE ADULT RAT BRAIN

    H G Kuhn;J Winkler;J Winkler;G Kempermann;L J Thal;L J Thal

  • The Alzheimer's disease neuroimaging initiative

    Susanne G. Mueller;Michael W. Weiner;Michael W. Weiner;Leon J. Thal;Ronald C. Petersen

  • Ways toward an early diagnosis in Alzheimer’s disease: The Alzheimer’s Disease Neuroimaging Initiative (ADNI)

    Susanne G. Mueller;Susanne G. Mueller;Michael W. Weiner;Michael W. Weiner;Leon J. Thal;Ronald C. Petersen

  • Estrogen Replacement Therapy for Treatment of Mild to Moderate Alzheimer Disease: A Randomized Controlled Trial

    R. A. Mulnard;C. W. Cotman;C. Kawas;C. H. Van Dyck

  • Mild cognitive impairment can be distinguished from Alzheimer disease and normal aging for clinical trials.

    Michael Grundman;Ronald C. Petersen;Steven H. Ferris;Ronald G. Thomas

  • Effects of Rofecoxib or Naproxen vs Placebo on Alzheimer Disease Progression: A Randomized Controlled Trial

    Paul S. Aisen;Kimberly A. Schafer;Michael Grundman;Eric Pfeiffer

  • Early role of vascular dysregulation on late-onset Alzheimer’s disease based on multifactorial data-driven analysis

    Y. Iturria-Medina;R. C. Sotero;P. J. Toussaint;J. M. Mateos-Pérez

  • A phase 1 clinical trial of nerve growth factor gene therapy for Alzheimer disease

    Mark H Tuszynski;Mark H Tuszynski;Leon Thal;Leon Thal;Mary Pay;David P Salmon

  • The Lewy body variant of Alzheimer's disease A clinical and pathologic entity

    L. Hansen;D. Salmon;D. Galasko;E. Masliah

  • Proliferation and differentiation of progenitor cells throughout the intact adult rat spinal cord

    Philip J. Horner;Ann E. Power;Gerd Kempermann;Gerd Kempermann;H. Georg Kuhn

  • Comparisons of Verbal Fluency Tasks in the Detection of Dementia of the Alzheimer Type

    Andreas U. Monsch;Mark W. Bondi;Nelson Butters;David P. Salmon

  • A double-blind, placebo-controlled multicenter study of tacrine for Alzheimer's disease. The Tacrine Collaborative Study Group.

    K. L. Davis;Leon J. Thal;E. R. Gamzu;C. S. Davis

  • Secretion of β-amyloid precursor protein cleaved at the amino terminus of the β-amyloid peptide

    Peter Seubert;Tilman Oltersdorf;Michael G. Lee;Robin Barbour

  • Cerebral amyloid angiopathy in the brains of patients with Alzheimer's disease The CERAD experience, part XV

    R. J. Ellis;John M Olichney;L. J. Thal;S. S. Mirra

  • Genetic association of the low-density lipoprotein receptor-related protein gene (LRP), an apolipoprotein E receptor, with late-onset Alzheimer's disease

    D. E. Kang;T. Saitoh;X. Chen;Y. Xia

  • Development of cognitive instruments for use in clinical trials of antidementia drugs: additions to the Alzheimer's Disease Assessment Scale that broaden its scope. The Alzheimer's Disease Cooperative Study.

    R C Mohs;D Knopman;R C Petersen;S H Ferris

Frequent Co-Authors

David P. Salmon
David P. Salmon University of California, San Diego
Douglas Galasko
Douglas Galasko University of California, San Diego
Jody Corey-Bloom
Jody Corey-Bloom University of California, San Diego
Fred H. Gage
Fred H. Gage Salk Institute for Biological Studies
Eliezer Masliah
Eliezer Masliah National Institutes of Health
Robert Katzman
Robert Katzman University of California, San Diego
Philip J. Langlais
Philip J. Langlais San Diego State University
Mark W. Bondi
Mark W. Bondi University of California, San Diego
Steven H. Ferris
Steven H. Ferris New York University
Ronald J. Mandel
Ronald J. Mandel University of Florida

External Links

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Related Online Degrees & Career Pathways

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All these online degree programs can expand your opportunities in neuroscience-adjacent fields, while offering the flexibility to balance study with work or other commitments.

Best Scientists Citing Leon J. Thal

Ian G. McKeith

Ian G. McKeith

Newcastle University

Publications: 98

Eliezer Masliah

Eliezer Masliah

National Institutes of Health

Publications: 94

John C. Morris

John C. Morris

Washington University in St. Louis

Publications: 92

Dag Aarsland

Dag Aarsland

King's College London

Publications: 92

Douglas Galasko

Douglas Galasko

University of California, San Diego

Publications: 89

Jeffrey L. Cummings

Jeffrey L. Cummings

University of Nevada, Las Vegas

Publications: 88

David P. Salmon

David P. Salmon

University of California, San Diego

Publications: 85

Clive Ballard

Clive Ballard

University of Exeter

Publications: 82

John T. O'Brien

John T. O'Brien

University of Cambridge

Publications: 73

Paul S. Aisen

Paul S. Aisen

University of Southern California

Publications: 70

Kurt A. Jellinger

Kurt A. Jellinger

Medical University of Vienna

Publications: 67

Ronald C. Petersen

Ronald C. Petersen

University of Pennsylvania

Publications: 67

Mark W. Bondi

Mark W. Bondi

University of California, San Diego

Publications: 67

Mark H. Tuszynski

Mark H. Tuszynski

University of California, San Diego

Publications: 63

John Q. Trojanowski

John Q. Trojanowski

University of Pennsylvania

Publications: 62

Fred H. Gage

Fred H. Gage

Salk Institute for Biological Studies

Publications: 57

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