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D-Index & Metrics

Psychology

D-Index
80
Citations
20369
World Ranking
1463
National Ranking
170

Simon Folkard 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 Simon Folkard 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: 204 publications — 70th percentile

70% of scientists in this discipline score the same or lower.

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

Simon Folkard 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 Simon Folkard 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: 80 D-Index — 88th percentile

88% of scientists in this discipline score the same or lower.

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

Overview

Simon Folkard is affiliated with Swansea University in the United Kingdom. Their primary field of study is psychology, with a focus on experimental and cognitive psychology. Other subfields include endocrine and autonomic systems, social psychology, safety, risk, reliability and quality, and occupational therapy.

The main topics covered in their research include:

  • Sleep and Work-Related Fatigue
  • Circadian rhythm and melatonin
  • Sleep and related disorders
  • Ergonomics and Musculoskeletal Disorders
  • Psychological and Temporal Perspectives Research
  • Traffic and Road Safety
  • Occupational Health and Performance

Simon Folkard has published research articles in several scientific venues, including:

  • Sleep Medicine
  • Frontiers in Psychology
  • Safety Science
  • Chronobiology International

Their recent papers include:

  • "Night shift work and immune response to the meningococcal conjugate vaccine in healthy workers: a proof of concept study" (2020, Sleep Medicine)
  • "More Than Morningness: The Effect of Circadian Rhythm Amplitude and Stability on Resilience, Coping, and Sleep Duration" (2021, Frontiers in Psychology)
  • "Estimating hourly work schedule risk in railway traffic controllers" (2022, Safety Science)
  • "The association between vigour and flexibility with injury and alertness during shift work" (2024, Chronobiology International)

Frequent co-authors collaborating with Simon Folkard include:

  • Lee Di Milia
  • Francieli S. Ruiz
  • Daniela Santoro Rosa
  • Ioná Zalcman Zimberg
  • Marcus Vinicius Lúcio dos Santos Quaresma

Best Publications

  • Shift work, safety and productivity

    Simon Folkard;Philip Tucker

  • The link between fatigue and safety

    Ann Williamson;David A. Lombardi;Simon Folkard;Simon Folkard;Jane Stutts

  • Complex interaction of the sleep-wake cycle and circadian phase modulates mood in healthy subjects.

    Diane B. Boivin;Charles A. Czeisler;Derk-Jan Dijk;Jeanne F. Duffy

  • The Standard Shiftwork Index: a battery of questionnaires for assessing shiftwork-related problems

    Jane Barton;Evelien Spelten;Peter Totterdell;Lawrence Smith

  • Towards a Predictive Test of Adjustment to Shift Work

    Simon Folkard;T. H. Monk;M. C. Lobban

  • Work shift duration: a review comparing eight hour and 12 hour shift systems.

    Lawrence Smith;Simon Folkard;Phil Tucker;Ian Macdonald

  • Do Permanent Night Workers Show Circadian Adjustment? A Review Based on the Endogenous Melatonin Rhythm

    Simon Folkard

  • Shiftwork: safety, sleepiness and sleep.

    Simon Folkard;David A. Lombardi;Philip T. Tucker

  • Modeling the impact of the components of long work hours on injuries and "accidents".

    Simon Folkard;David A. Lombardi

  • Some effects of jet-lag and their alleviation by melatonin

    J. Arendt;M. Aldhous;J. English;V. Marks

  • Increased injuries on night shift

    Lesley Smith;S. Folkard;C. J. Poole

  • Making Shiftwork Tolerable

    S. Folkard;T H Monk

  • Black times: temporal determinants of transport safety.

    Simon Folkard

  • Circadian rhythms in human memory

    Simon Folkard;Timothy H. Monk

  • Shiftwork and Performance

    Simon Folkard;Timothy H. Monk

  • Flexible working hours, health, and well-being in Europe: some considerations from a SALTSA project.

    Giovanni Costa;Torbjorn Åkerstedt;Friedhelm Nachreiner;Federica Baltieri

  • Investigation of Morning-Evening Orientation in Six Countries Using the Preferences Scale

    Carlla S Smith;Simon Folkard;Robert A Schmieder;Luis F Parra

  • Diurnal variation in logical reasoning.

    Simon Folkard

  • Validation of the S and C components of the three-process model of alertness regulation.

    Torbjörn Åkerstedt;Simon Folkard

  • The Effect of Memory Load on the Circadian Variation in Performance Efficiency Under a Rapidly Rotating Shift System

    Simon Folkard;P. Knauth;T. H. Monk

  • Hours of work : temporal factors in work scheduling

    Simon Folkard;Timothy H. Monk

Frequent Co-Authors

Philip Tucker
Philip Tucker Stockholm University
Peter Totterdell
Peter Totterdell University of Sheffield
Torbjörn Åkerstedt
Torbjörn Åkerstedt Karolinska Institute
Greg Atkinson
Greg Atkinson Teesside University
Josephine Arendt
Josephine Arendt University of Surrey
Thomas Reilly
Thomas Reilly Liverpool John Moores University
David C. Christiani
David C. Christiani Harvard University
Bjørn Bjorvatn
Bjørn Bjorvatn University of Bergen
Sergio Tufik
Sergio Tufik Federal University of Sao Paulo
Ståle Pallesen
Ståle Pallesen University of Bergen

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Related Online Degrees & Career Pathways

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