World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
39
Citations
5750
World Ranking
8617
National Ranking
864

Harry Sumnall 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 Harry Sumnall 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: 150 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Harry Sumnall 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 Harry Sumnall 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: 39 D-Index — 27th percentile

27% of scientists in this discipline score the same or lower.

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

Overview

Harry Sumnall is affiliated with Liverpool John Moores University in the United Kingdom and has made contributions to the field of medicine, with a particular focus on epidemiology and public health. Their research spans several subfields including general health professions, clinical psychology, cognitive neuroscience, and environmental and occupational health.

The main research topics covered by Sumnall include:

  • Substance Abuse Treatment and Outcomes
  • HIV, Drug Use, Sexual Risk
  • Opioid Use Disorder Treatment
  • Neural and Behavioral Psychology Studies
  • Sexuality, Behavior, and Technology
  • Homelessness and Social Issues
  • Mental Health Treatment and Access

Sumnall has published work in a variety of journals, frequently contributing to:

  • International Journal of Drug Policy
  • Drugs Education Prevention and Policy
  • PLoS ONE
  • Harm Reduction Journal
  • Journal of Psychopharmacology

Notable recent papers include:

  • New psychoactive substances: a review and updates, 2020, Therapeutic Advances in Psychopharmacology
  • 'Pretty in Pink' and 'Girl Power': An analysis of the targeting and representation of women in alcohol brand marketing on Facebook and Instagram, 2021, International Journal of Drug Policy
  • How effective are pharmaceuticals for cognitive enhancement in healthy adults? A series of meta-analyses of cognitive performance during acute administration of modafinil, methylphenidate and D-amphetamine, 2020, European Neuropsychopharmacology
  • Synthetic opioids: a review and clinical update, 2022, Therapeutic Advances in Psychopharmacology
  • A Realist Review of How Community-Based Drug Checking Services Could Be Designed and Implemented to Promote Engagement of People Who Use Drugs, 2022, International Journal of Environmental Research and Public Health

Sumnall has collaborated frequently with other researchers including Amanda Atkinson, Catharine Montgomery, Tessa Parkes, Beth Meadows, and Fiona Measham.

Best Publications

  • Analyses of second-generation 'legal highs' in the UK: initial findings.

    Simon D. Brandt;Harry R. Sumnall;Fiona Measham;Jon Cole

  • New psychoactive substances: a review and updates:

    Abu Shafi;Alex J. Berry;Harry Sumnall;David M. Wood

  • Multiple behavioural impulsivity tasks predict prospective alcohol involvement in adolescents.

    Gordon Fernie;Margot Peeters;Matthew J. Gullo;Paul Christiansen

  • Altered states: the clinical effects of Ecstasy.

    J.C. Cole;H.R. Sumnall

  • Delay discounting and the behavioural economics of cigarette purchases in smokers: the effects of nicotine deprivation.

    Matt Field;Mary Santarcangelo;Harry Sumnall;Andrew Goudie

  • The content of ecstasy tablets: implications for the study of their long-term effects.

    Jon C. Cole;Mike Bailey;Harry R. Sumnall;Graham F. Wagstaff

  • The pre-clinical behavioural pharmacology of 3,4-methylenedioxymethamphetamine (MDMA).

    Jon C Cole;Harry R Sumnall

  • Analysis of NRG ‘legal highs’ in the UK: identification and formation of novel cathinones

    Simon D. Brandt;Sally Freeman;Harry Robin Sumnall;Fiona Measham

  • The varieties of ecstatic experience: an exploration of the subjective experiences of ecstasy.

    Harry R. Sumnall;Jon C. Cole;Lisa Jerome

  • Use, function, and subjective experiences of gamma-hydroxybutyrate (GHB).

    Harry Robin Sumnall;Kerry Woolfall;Sara Edwards;Jon C. Cole

  • Legally flawed, scientifically problematic, potentially harmful: The UK Psychoactive Substance Bill

    Alex Stevens;Rudi Fortson;Fiona Measham;Harry Sumnall

  • Parental permissiveness, control, and affect and drug use among adolescents

    Elisardo Becoña;Úrsula Martínez;Amador Calafat;José Ramón Fernández-Hermida

  • 'Pretty in Pink' and 'Girl Power': An analysis of the targeting and representation of women in alcohol brand marketing on Facebook and Instagram.

    Unknown

  • Optimal provision of needle and syringe programmes for injecting drug users: A systematic review

    Lisa Jones;Lucy Pickering;Harry Sumnall;James McVeigh

  • Is ecstasy perceived to be safe? A critical survey.

    Alex Gamma;Lisa Jerome;Matthias E. Liechti;Harry R. Sumnall

  • Social, policy, and public health perspectives on new psychoactive substances.

    H.R. Sumnall;M. Evans-Brown;J. McVeigh

  • Self-reported depressive symptomatology in community samples of polysubstance misusers who report Ecstasy use: a meta-analysis

    Harry R. Sumnall;Jon C. Cole

  • A behavioural economic analysis of alcohol, amphetamine, cocaine and ecstasy purchases by polysubstance misusers.

    Harry R. Sumnall;Elizabeth Tyler;Graham F. Wagstaff;Jon C. Cole

  • An investigation of the subjective experiences of sex after alcohol or drug intoxication.

    Harry Sumnall;C M Beynon;Stacey Conchie;Sarah Riley

  • Self-reported psychopathology in polydrug users.

    Harry Robin Sumnall;Graham F. Wagstaff;Jon C. Cole

  • Self-esteem and self-efficacy: Associations with alcohol consumption in a sample of adolescents in Northern Ireland

    Michael T. McKay;Harry R. Sumnall;Jon C. Cole;Andrew Percy

Frequent Co-Authors

Jon C. Cole
Jon C. Cole University of Liverpool
Mark A Bellis
Mark A Bellis Liverpool John Moores University
Matt Field
Matt Field University of Sheffield
David R. Foxcroft
David R. Foxcroft Oxford Brookes University
Eileen Kaner
Eileen Kaner Newcastle University
Patricia J. Conrod
Patricia J. Conrod University of Montreal
Vassilis Barkoukis
Vassilis Barkoukis Aristotle University of Thessaloniki
Reinout W. Wiers
Reinout W. Wiers University of Amsterdam
Matthew J. Gullo
Matthew J. Gullo Griffith University
Paul Christiansen
Paul Christiansen University of Liverpool

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