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John T. O'Brien
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Medicine
UK
2023

D-Index & Metrics

Neuroscience

D-Index
157
Citations
101671
World Ranking
124
National Ranking
19

John T. O'Brien 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 John T. O'Brien 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: 947 publications — 99th percentile

99% of scientists in this discipline score the same or lower.

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

John T. O'Brien 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 John T. O'Brien 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: 157 D-Index — 99th percentile

99% 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

  • 2023 - Research.com Medicine in United Kingdom Leader Award

Overview

John T. O'Brien is affiliated with the University of Cambridge in the United Kingdom. Their research primarily spans the fields of Medicine and Neuroscience, with a significant focus on Neurology, Psychiatry and Mental Health, Physiology, Cognitive Neuroscience, and Radiology, Nuclear Medicine and Imaging.

The scientist's main topics of work include:

  • Dementia and Cognitive Impairment Research
  • Alzheimer's disease research and treatments
  • Functional Brain Connectivity Studies
  • Parkinson's Disease Mechanisms and Treatments
  • Advanced Neuroimaging Techniques and Applications
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Neurological Disease Mechanisms and Treatments

Frequent publication venues for their work include:

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

Their research output is demonstrated by recent papers such as:

  • Research criteria for the diagnosis of prodromal dementia with Lewy bodies, 2020, published in Neurology
  • Diagnosis and management of dementia with Lewy bodies: Fourth consensus report of the DLB Consortium, 2020, Newcastle University ePrints (Newcastle University)
  • A synergistic core for human brain evolution and cognition, 2022, Nature Neuroscience
  • Tackling challenges in care of Alzheimer's disease and other dementias amid the COVID-19 pandemic, now and in the future, 2020, Alzheimer s & Dementia
  • Drug repositioning and repurposing for Alzheimer disease, 2020, Nature Reviews Neurology

John T. O'Brien frequently collaborates with other researchers including James B. Rowe, John-Paul Taylor, Elijah Mak, Alan Thomas, and Craig Ritchie.

Best Publications

  • Diagnosis and management of dementia with Lewy bodies: Third report of the DLB Consortium

    I. G. McKeith;I. G. McKeith;D. W. Dickson;J. Lowe;M. Emre

  • Research criteria for the diagnosis of Alzheimer's disease: revising the NINCDS–ADRDA criteria

    Bruno Dubois;Howard H. Feldman;Claudia Jacova;Steven T. DeKosky

  • Neuroimaging standards for research into small vessel disease and its contribution to ageing and neurodegeneration

    Joanna M. Wardlaw;Eric E. Smith;Geert J Biessels;Charlotte Cordonnier

  • 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

  • Revising the definition of Alzheimer's disease: a new lexicon.

    Bruno Dubois;Howard H. Feldman;Howard H. Feldman;Howard H. Feldman;Claudia Jacova;Jeffrey L. Cummings

  • Vascular Cognitive Impairment

    John T O'Brien;Timo Erkinjuntti;Barry Reisberg;Gustavo Roman

  • Donepezil and memantine for moderate-to-severe Alzheimer's disease.

    Robert Howard;Rupert McShane;James Lindesay;Craig Ritchie

  • Diagnostic criteria for vascular cognitive disorders: a VASCOG statement.

    Perminder Sachdev;Raj Kalaria;John O'Brien;Ingmar Skoog

  • Cerebral atrophy in Parkinson’s disease with and without dementia: a comparison with Alzheimer’s disease, dementia with Lewy bodies and controls

    Emma J Burton;Ian G McKeith;David J Burn;E David Williams

  • EFNS guidelines for the diagnosis and management of Alzheimer's disease

    J. Hort;J.T. O'Brien;G. Gainotti;T. Pirttila

  • Sensitivity and specificity of dopamine transporter imaging with 123I-FP-CIT SPECT in dementia with Lewy bodies: a phase III, multicentre study

    Ian McKeith;John O'Brien;Zuzana Walker;Klaus Tatsch

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

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

  • Vascular dysfunction-The disregarded partner of Alzheimer's disease

    Melanie D. Sweeney;Axel Montagne;Abhay P. Sagare;Daniel A. Nation

  • White Matter Lesions in an Unselected Cohort of the Elderly: Molecular Pathology Suggests Origin From Chronic Hypoperfusion Injury

    Malee S. Fernando;Julie E. Simpson;Fiona Matthews;Carol Brayne

  • Aromatherapy as a safe and effective treatment for the management of agitation in severe dementia: the results of a double-blind, placebo-controlled trial with Melissa.

    Clive G. Ballard;John T. O'Brien;Katharina Reichelt;Elaine K. Perry

  • 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

  • Core outcome measures for interventions to prevent or slow the progress of dementia for people living with mild to moderate dementia: Systematic review and consensus recommendations

    Lucy Webster;Derek Groskreutz;Anna Grinbergs-Saull Grinbergs-Saull;Rob Howard

  • Human thiopurine methyltransferase pharmacogenetics: Gene sequence polymorphisms

    Diane Otterness;Carol Szumlanski;Lynne Lennard;Bjørg Klemetsdal

  • The spectrum of nonmotor symptoms in early Parkinson disease

    Tien Kheng Khoo;Alison J Yarnall;Gordon W Duncan;Shirley Coleman

  • Prospective validation of consensus criteria for the diagnosis of dementia with Lewy bodies.

    I.G. McKeith;C.G. Ballard;R.H. Perry;P.G. Ince

  • White matter lesions on magnetic resonance imaging in dementia with Lewy bodies, Alzheimer’s disease, vascular dementia, and normal aging

    R. Barber;P. Scheltens;A. Gholkar;C. Ballard

  • Motor subtype and cognitive decline in Parkinson’s disease, Parkinson’s disease with dementia, and dementia with Lewy bodies

    David Burn;Elise Rowan;Louise Allan;Sophie Molloy

Frequent Co-Authors

Ian G. McKeith
Ian G. McKeith Newcastle University
Michael J. Firbank
Michael J. Firbank Newcastle University
Alan J. Thomas
Alan J. Thomas Newcastle University
Clive Ballard
Clive Ballard University of Exeter
James B. Rowe
James B. Rowe University of Cambridge
John-Paul Taylor
John-Paul Taylor Newcastle University
David J. Burn
David J. Burn Newcastle University
Sean J. Colloby
Sean J. Colloby Newcastle University
Andrew M. Blamire
Andrew M. Blamire Newcastle University
Luca Passamonti
Luca Passamonti University of Cambridge

External Links

Personal website of John T. O'Brien Google Scholar page

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Related Online Degrees & Career Pathways

Exploring a career in neuroscience opens doors to numerous related fields and degree options. If you’re seeking flexibility, an accelerated bachelor's degree online can help fast-track your education, allowing you to enter the workforce sooner or pursue advanced studies earlier. This approach is ideal for highly motivated students ready to move ahead quickly.

Considering future earnings is also important. Many neuroscience graduates branch into roles that top lists of top paying degrees and occupations associated with most lucrative degrees. Fields like biotechnology, data science, psychology, and pharmaceutical research offer excellent earning potential and growth opportunities.

Affordability matters too. If budget is a concern, researching cheap online colleges that accept federal financial aid may help you manage costs while still accessing quality programs. Weighing these degree and career options ensures a strategic path towards both personal and professional development in neuroscience and its related fields.

Best Scientists Citing John T. O'Brien

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