World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
78
Citations
25670
World Ranking
17935
National Ranking
1636

Psychology

D-Index
77
Citations
24638
World Ranking
1639
National Ranking
185

Neuroscience

D-Index
78
Citations
25705
World Ranking
1750
National Ranking
181

Alan J. Thomas publication distribution in Psychology in 2026

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

31–40 publications: 6 scientists 41–50 publications: 52 scientists 51–60 publications: 138 scientists 61–70 publications: 299 scientists 71–80 publications: 461 scientists 81–90 publications: 605 scientists 91–100 publications: 713 scientists 101–110 publications: 736 scientists 111–120 publications: 686 scientists 121–130 publications: 670 scientists 131–140 publications: 644 scientists 141–150 publications: 597 scientists 151–160 publications: 576 scientists 161–170 publications: 477 scientists 171–180 publications: 450 scientists 181–190 publications: 397 scientists 191–200 publications: 343 scientists 201–210 publications: 328 scientists 211–220 publications: 313 scientists 221–230 publications: 283 scientists 231–240 publications: 226 scientists 241–250 publications: 196 scientists 251–260 publications: 201 scientists 261–270 publications: 171 scientists 271–280 publications: 151 scientists 281–290 publications: 139 scientists 291–300 publications: 113 scientists 301–310 publications: 102 scientists 311–320 publications: 100 scientists 321–330 publications: 76 scientists 331–340 publications: 92 scientists 341–350 publications: 85 scientists 351–360 publications: 69 scientists 361–370 publications: 71 scientists 371–380 publications: 63 scientists 381–390 publications: 58 scientists 391–400 publications: 57 scientists 401–410 publications: 43 scientists 411–420 publications: 33 scientists 421–430 publications: 50 scientists 431–440 publications: 41 scientists 441–450 publications: 32 scientists 451–460 publications: 27 scientists 461–470 publications: 28 scientists 471–480 publications: 25 scientists 481–490 publications: 28 scientists 491–500 publications: 20 scientists 501–510 publications: 23 scientists 511–520 publications: 26 scientists 521–530 publications: 17 scientists 531–540 publications: 21 scientists 541–550 publications: 14 scientists 551–560 publications: 16 scientists 561–570 publications: 10 scientists 571–580 publications: 22 scientists 581–590 publications: 9 scientists 591–600 publications: 14 scientists 601–610 publications: 9 scientists 611–620 publications: 11 scientists 621–630 publications: 4 scientists 631–640 publications: 7 scientists 641–650 publications: 5 scientists 651–660 publications: 10 scientists 661–670 publications: 8 scientists 671–680 publications: 8 scientists 681–690 publications: 4 scientists 691–700 publications: 3 scientists 701–704 publications: 4 scientists 705+ publications: 100 scientists
31 publications 705+

This scientist: 280 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 705 publications or more.

Alan J. Thomas D-index placement in Psychology in 2026

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

30–31 D-Index: 398 scientists 32–33 D-Index: 702 scientists 34–35 D-Index: 671 scientists 36–37 D-Index: 659 scientists 38–39 D-Index: 641 scientists 40–41 D-Index: 671 scientists 42–43 D-Index: 617 scientists 44–45 D-Index: 558 scientists 46–47 D-Index: 495 scientists 48–49 D-Index: 487 scientists 50–51 D-Index: 445 scientists 52–53 D-Index: 390 scientists 54–55 D-Index: 408 scientists 56–57 D-Index: 345 scientists 58–59 D-Index: 325 scientists 60–61 D-Index: 321 scientists 62–63 D-Index: 248 scientists 64–65 D-Index: 290 scientists 66–67 D-Index: 218 scientists 68–69 D-Index: 219 scientists 70–71 D-Index: 215 scientists 72–73 D-Index: 183 scientists 74–75 D-Index: 169 scientists 76–77 D-Index: 132 scientists 78–79 D-Index: 137 scientists 80–81 D-Index: 120 scientists 82–83 D-Index: 112 scientists 84–85 D-Index: 86 scientists 86–87 D-Index: 101 scientists 88–89 D-Index: 83 scientists 90–91 D-Index: 77 scientists 92–93 D-Index: 70 scientists 94–95 D-Index: 78 scientists 96–97 D-Index: 58 scientists 98–99 D-Index: 53 scientists 100–101 D-Index: 57 scientists 102–103 D-Index: 48 scientists 104–105 D-Index: 53 scientists 106–107 D-Index: 46 scientists 108–109 D-Index: 24 scientists 110–111 D-Index: 35 scientists 112–113 D-Index: 27 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 31 scientists 118–119 D-Index: 22 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 24 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 11 scientists 128–129 D-Index: 19 scientists 130–131 D-Index: 10 scientists 132–133 D-Index: 16 scientists 134–135 D-Index: 10 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 5 scientists 142–143 D-Index: 12 scientists 144+ D-Index: 98 scientists
30 D-Index 144+

This scientist: 77 D-Index — 86th percentile

86% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 144 D-Index or more.

Overview

Alan J. Thomas is affiliated with Newcastle University in the United Kingdom and has a research focus primarily in the field of Medicine, with substantial contributions to Psychiatry and Mental Health, Neurology, Physiology, Cognitive Neuroscience, and Molecular Biology.

Their recent published papers include:

  • Research criteria for the diagnosis of prodromal dementia with Lewy bodies, 2020, Neurology
  • Diagnosis and management of dementia with Lewy bodies: Fourth consensus report of the DLB Consortium, 2020, Newcastle University ePrints (Newcastle University)
  • Mild Cognitive Impairment: the Manchester consensus, 2020, Age and Ageing
  • Recalibrating the epigenetic clock: implications for assessing biological age in the human cortex, 2020, Brain
  • Differential levels of plasma biomarkers of neurodegeneration in Lewy body dementia, Alzheimer's disease, frontotemporal dementia and progressive supranuclear palsy, 2022, Journal of Neurology Neurosurgery & Psychiatry

The frequent co-authors working alongside Alan J. Thomas are:

  • John T. O'Brien
  • John-Paul Taylor
  • Paul C. Donaghy
  • Calum A. Hamilton
  • Michael Firbank

The venues where this scientist has most frequently published include:

  • Alzheimer s & Dementia
  • bioRxiv (Cold Spring Harbor Laboratory)
  • International Journal of Geriatric Psychiatry
  • Neurology
  • Brain

Alan J. Thomas has authored books in addition to journal articles, with a publication titled Poverty and Development released in 2021 through Channel View Publications eBooks.

The main topics addressed in their work span:

  • Dementia and Cognitive Impairment Research
  • Alzheimer's disease research and treatments
  • Parkinson's Disease Mechanisms and Treatments
  • Functional Brain Connectivity Studies
  • Epigenetics and DNA Methylation
  • Ginkgo biloba and Cashew Applications
  • Health disparities and outcomes

This profile highlights Alan J. Thomas's interdisciplinary research contributions that bridge clinical and biological studies, particularly focused on neurodegenerative diseases and cognitive impairment.

Best Publications

  • Diagnosis and management of dementia with Lewy bodies Fourth consensus report of the DLB Consortium

    Ian G. McKeith;Bradley F. Boeve;Dennis W. DIckson;Glenda Halliday

  • Research criteria for the diagnosis of prodromal dementia with Lewy bodies

    Ian G. McKeith;Tanis J. Ferman;Alan J. Thomas;Frédéric Blanc

  • Sertraline or mirtazapine for depression in dementia (HTA-SADD): a randomised, multicentre, double-blind, placebo-controlled trial

    Sube Banerjee;Jennifer Hellier;Michael Dewey;Renee Romeo

  • Common and distinct patterns of grey-matter volume alteration in major depression and bipolar disorder: evidence from voxel-based meta-analysis

    T Wise;J Radua;J Radua;E Via;N Cardoner

  • Depression and dementia: Cause, consequence or coincidence?

    Sophia Bennett;Alan J. Thomas

  • Ischemic basis for deep white matter hyperintensities in major depression: a neuropathological study.

    Alan J. Thomas;John T. O'Brien;Sue Davis;Clive Ballard

  • Genome sequencing analysis identifies new loci associated with Lewy body dementia and provides insights into its genetic architecture

    Ruth Chia;Marya S. Sabir;Sara Bandres-Ciga

  • Frontotemporal dementia and its subtypes: a genome-wide association study

    Raffaele Ferrari;Raffaele Ferrari;Dena G Hernandez;Dena G Hernandez;Michael A Nalls;Jonathan D Rohrer

  • Quetiapine and rivastigmine and cognitive decline in Alzheimer's disease: randomised double blind placebo controlled trial

    Clive Ballard;Marisa Margallo-Lana;Edmund Juszczak;Simon Douglas

  • Dementia with Lewy bodies: an update and outlook

    Tiago Fleming Outeiro;Tiago Fleming Outeiro;Tiago Fleming Outeiro;David J. Koss;Daniel Erskine;Lauren Walker

  • Increase in Interleukin-1β in Late-Life Depression

    Alan J. Thomas;Sue Davis;Christopher Morris;Elizabeth Jackson

  • Depression and vascular disease: what is the relationship?

    Alan J Thomas;Rajesh N Kalaria;John T O’Brien

  • Clinical practice with anti-dementia drugs: A revised (third) consensus statement from the British Association for Psychopharmacology

    John T. O'Brien;Clive Holmes;Matthew Jones;Roy Jones

  • Pharmacological Management of Lewy Body Dementia: A Systematic Review and Meta-Analysis

    Chris Stinton;Ian G. McKeith;John-Paul Taylor;Louise Lafortune

  • New evidence on the management of Lewy body dementia.

    John Paul Taylor;Ian G. McKeith;David J. Burn;Brad F. Boeve

  • Long term incidence of dementia, predictors of mortality and pathological diagnosis in older stroke survivors

    Louise M. Allan;Elise N. Rowan;Michael J. Firbank;Alan J. Thomas

  • Parietal white matter lesions in Alzheimer’s disease are associated with cortical neurodegenerative pathology, but not with small vessel disease

    Kirsty E. McAleese;Lauren Walker;Sophie Graham;Elisa L. J. Moya

  • Clinical prevalence of Lewy body dementia

    Joseph P. M. Kane;Ajenthan Surendranathan;Allison Bentley;Sally A. H. Barker

  • Study of the use of antidepressants for depression in dementia: the HTA-SADD trial - a multicentre, randomised, double-blind, placebo-controlled trial of the clinical effectiveness and cost-effectiveness of sertraline and mirtazapine

    S Banerjee;J Hellier;R Romeo;M Dewey

  • TDP-43 pathology in Alzheimer's disease, dementia with Lewy bodies and ageing.

    Kirsty E. McAleese;Lauren Walker;Daniel Erskine;Alan J. Thomas

  • Neuropathological correlates of late-life depression in older people

    Christos Tsopelas;Robert Stewart;George M. Savva;Carol Brayne

Frequent Co-Authors

John T. O'Brien
John T. O'Brien University of Cambridge
John-Paul Taylor
John-Paul Taylor Newcastle University
Ian G. McKeith
Ian G. McKeith Newcastle University
Johannes Attems
Johannes Attems Newcastle University
Michael J. Firbank
Michael J. Firbank Newcastle University
Christopher Morris
Christopher Morris Newcastle University
Sean J. Colloby
Sean J. Colloby Newcastle University
Clive Ballard
Clive Ballard University of Exeter
David J. Burn
David J. Burn Newcastle University
Paul T. Francis
Paul T. Francis University of Exeter

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Neuroscience unlocks diverse career opportunities in healthcare, research, and clinical psychology. Many students pursue advanced qualifications to specialize further or boost their earnings, and the rise of online education provides added flexibility for busy professionals.

Those interested in clinical roles may consider shortest online psyd programs, which can lead to careers in psychology and mental health. For those drawn to counseling and family therapy, lmft online programs offer a focused pathway to becoming a Licensed Marriage and Family Therapist.

For undergraduates, there are accelerated programs online that allow students to earn their bachelor's degree in less time—helpful for entering the workforce sooner or moving onto graduate study. If salary potential drives your decision, exploring highest earning degrees can help you choose programs aligned with lucrative career paths in neuroscience and related fields.

By exploring these online degree options, students can tailor their education and career trajectory to fit their interests, goals, and lifestyle.

Best Scientists Citing Alan J. Thomas

Trending Scientists

Recently Published Articles