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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 33 10631 9952 10 10 112 3925

Kevin G. F. Thomas publications per year

The chart shows the history of publications by Kevin G. F. Thomas between 1995 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kevin G. F. Thomas published across 31 years, from 1995 to 2025, averaging 4.5 papers a year. Output peaked at 12 publications in 2014. 13 of the 141 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1995 to 2025. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2014. 1995: 1 publication 1996: 1 publication 1997: 3 publications 1998: 2 publications 1999: 1 publication 2000: 2 publications 2001: 1 publication 2002: 2 publications 2003: 0 publications 2004: 0 publications 2005: 0 publications 2006: 1 publication 2007: 2 publications 2008: 1 publication 2009: 0 publications 2010: 4 publications 2011: 10 publications 2012: 5 publications 2013: 10 publications 2014: 12 publications 2015: 10 publications 2016: 9 publications 2017: 6 publications 2018: 6 publications 2019: 8 publications 2020: 6 publications 2021: 12 publications 2022: 7 publications 2023: 6 publications 2024: 7 publications 2025: 6 publications
1995 2025

141 publications in total across all disciplines

View publications per year as a table
Kevin G. F. Thomas: publications per year, 1995 to 2025
Year Publications
1995 1
1996 1
1997 3
1998 2
1999 1
2000 2
2001 1
2002 2
2003 0
2004 0
2005 0
2006 1
2007 2
2008 1
2009 0
2010 4
2011 10
2012 5
2013 10
2014 12
2015 10
2016 9
2017 6
2018 6
2019 8
2020 6
2021 12
2022 7
2023 6
2024 7
2025 6
Total 141
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Kevin G. F. 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 Kevin G. F. Thomas sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 69 bars. Horizontal axis: publications, 31–40 to 705+. Vertical axis: number of scientists, 0 to 736. Most scientists, 736, have 101–110 publications. The last bar groups every scientist with 705 publications or more. The highlighted bar, 111–120 publications, is where this scientist sits. 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
31–40 publications 705+

This scientist: 112 publications — 28th percentile

28% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Psychology scientists by publication count, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
Publications Scientists This scientist
31–40 6
41–50 52
51–60 138
61–70 299
71–80 461
81–90 605
91–100 713
101–110 736
111–120 686 112
121–130 670
131–140 644
141–150 597
151–160 576
161–170 477
171–180 450
181–190 397
191–200 343
201–210 328
211–220 313
221–230 283
231–240 226
241–250 196
251–260 201
261–270 171
271–280 151
281–290 139
291–300 113
301–310 102
311–320 100
321–330 76
331–340 92
341–350 85
351–360 69
361–370 71
371–380 63
381–390 58
391–400 57
401–410 43
411–420 33
421–430 50
431–440 41
441–450 32
451–460 27
461–470 28
471–480 25
481–490 28
491–500 20
501–510 23
511–520 26
521–530 17
531–540 21
541–550 14
551–560 16
561–570 10
571–580 22
581–590 9
591–600 14
601–610 9
611–620 11
621–630 4
631–640 7
641–650 5
651–660 10
661–670 8
671–680 8
681–690 4
691–700 3
701–704 4
705+ 100
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Kevin G. F. 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 Kevin G. F. Thomas sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 58 bars. Horizontal axis: D-Index, 30–31 to 144+. Vertical axis: number of scientists, 0 to 702. Most scientists, 702, have 32–33 D-Index. The last bar groups every scientist with 144 D-Index or more. The highlighted bar, 32–33 D-Index, is where this scientist sits. 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
30–31 D-Index 144+

This scientist: 33 D-Index — 10th percentile

10% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Psychology scientists by D-index, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
D-Index Scientists This scientist
30–31 398
32–33 702 33
34–35 671
36–37 659
38–39 641
40–41 671
42–43 617
44–45 558
46–47 495
48–49 487
50–51 445
52–53 390
54–55 408
56–57 345
58–59 325
60–61 321
62–63 248
64–65 290
66–67 218
68–69 219
70–71 215
72–73 183
74–75 169
76–77 132
78–79 137
80–81 120
82–83 112
84–85 86
86–87 101
88–89 83
90–91 77
92–93 70
94–95 78
96–97 58
98–99 53
100–101 57
102–103 48
104–105 53
106–107 46
108–109 24
110–111 35
112–113 27
114–115 32
116–117 31
118–119 22
120–121 16
122–123 24
124–125 18
126–127 11
128–129 19
130–131 10
132–133 16
134–135 10
136–137 12
138–139 8
140–141 5
142–143 12
144+ 98
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Overview

Kevin G. F. Thomas is affiliated with the University of Cape Town in South Africa. Their research primarily spans the fields of Medicine and Psychology, with contributions across subfields such as Emergency Medicine, Virology, Experimental and Cognitive Psychology, Infectious Diseases, and Pediatrics, Perinatology and Child Health.

The scientist's body of work includes a focus on topics related to HIV Research and Treatment, HIV-related health complications and treatments, and HIV/AIDS Research and Interventions. Additional areas of interest include Sleep and related disorders, Prenatal Substance Exposure Effects, Sleep and Wakefulness Research, as well as Child and Adolescent Psychosocial and Emotional Development.

Notable recent papers authored or co-authored by Kevin G. F. Thomas include:

  • Cognitive impairment in people living with HIV: consensus recommendations for a new approach (2023, Nature Reviews Neurology)
  • Smartphone Screen Time: Inaccuracy of self-reports and influence of psychological and contextual factors (2020, Computers in Human Behavior)
  • Reduced Hippocampal Volumes Partially Mediate Effects of Prenatal Alcohol Exposure on Spatial Navigation on a Virtual Water Maze Task in Children (2020, Alcoholism Clinical and Experimental Research)
  • Cognitive Differences between Men and Women with HIV: A Systematic Review and Meta-Analysis (2021, Archives of Clinical Neuropsychology)
  • Trends in the prevalence and severity of depressive symptoms among undergraduate students at a South African University, 2016-2019 (2020, South African Journal of Psychology)

The scientist frequently collaborates with other researchers, including John A. Joska, Anna J. Dreyer, Sam Nightingale, Hetta Gouse, and Michelle Henry.

Kevin G. F. Thomas has published multiple works in the following venues:

  • Journal of NeuroVirology
  • Nature Reviews Neurology
  • Archives of Clinical Neuropsychology
  • South African Journal of Psychology
  • AIDS and Behavior

Best Publications

  • The effects of experimentally induced stress on false recognition

    Jessica D. Payne;Lynn Nadel;John J.B. Allen;Kevin G.F. Thomas

  • Place Learning in Virtual Space I: Acquisition, Overshadowing, and Transfer

    W.Jake Jacobs;Holly E. Laurance;Kevin G.F. Thomas

  • Characterization of HIV-Associated Neurocognitive Disorders among individuals starting antiretroviral therapy in South Africa.

    John A. Joska;Jennifer Westgarth-Taylor;Landon Myer;Landon Myer;Jacqueline Hoare

  • Humans with traumatic brain injuries show place-learning deficits in computer-generated virtual space.

    Ronald W. Skelton;Cindy M. Bukach;Holly E. Laurance;Kevin G.F. Thomas

  • Place Learning in Virtual Space: II. Topographical Relations as One Dimension of Stimulus Control☆☆☆

    W.Jake Jacobs;Kevin G.F. Thomas;Kevin G.F. Thomas;Holly E. Laurance;Lynn Nadel

  • HIV-Associated Cognitive Impairment in Perinatally Infected Children: A Meta-analysis

    Nicole Phillips;Taryn Amos;Caroline Kuo;Jacqueline Hoare

  • A diffusion tensor imaging and neurocognitive study of HIV-positive children who are HAART-naïve "slow progressors"

    Jacqueline Hoare;Jean-Paul Fouche;Bruce Spottiswoode;Bruce Spottiswoode;Kirsty Donald

  • Validity of the International HIV Dementia Scale in South Africa.

    John A. Joska;Jennifer Westgarth-Taylor;Jacqueline Hoare;Kevin G.F. Thomas

  • Verbal Learning and Memory Impairment in Children with Fetal Alcohol Spectrum Disorders

    Catherine E. Lewis;Kevin G. F. Thomas;Neil C. Dodge;Christopher D. Molteno

  • A Comparison of Five Brief Screening Tools for HIV-Associated Neurocognitive Disorders in the USA and South Africa

    J. A. Joska;J. Witten;K. G. Thomas;C. Robertson

  • Smartphone Screen Time: Inaccuracy of self-reports and influence of psychological and contextual factors

    Leora N. Hodes;Kevin G.F. Thomas

  • Autism and the grand challenges in global mental health.

    Naila Z Khan;Lilia Albores Gallo;Aurora Arghir;Bogdan Budisteanu

  • Preferential Consolidation of Emotional Memory During Sleep: A Meta-Analysis.

    Gosia Lipinska;Beth Stuart;Kevin G. F. Thomas;David S. Baldwin;David S. Baldwin

  • Place learning in virtual space. III: Investigation of spatial navigation training procedures and their application to fMRI and clinical neuropsychology.

    Kevin G. F. Thomas;Ming Hsu;Holly E. Laurance;Lynn Nadel

  • Exploring the utility of the Montreal Cognitive Assessment to detect HIV-associated neurocognitive disorder: the challenge and need for culturally valid screening tests in South Africa.

    Reuben N Robbins;John A Joska;Kevin G F Thomas;Dan J Stein

  • Neuropsychological performance of South African treatment-naïve adolescents with alcohol dependence

    Helen L. Ferrett;Paul D. Carey;Kevin G.F. Thomas;Susan F. Tapert

  • Neural correlates of experienced moral emotion: An fMRI investigation of emotion in response to prejudice feedback

    Melike M. Fourie;Kevin G. F. Thomas;David M. Amodio;Christopher M. R. Warton

  • Autism spectrum disorders—Global challenges and local opportunities

    Susan Malcolm-Smith;Michelle Hoogenhout;Natalia Ing;Kevin Gf Thomas

  • Neuropsychological Outcomes in Adults Commencing Highly Active Anti-Retroviral Treatment in South Africa: A Prospective Study

    John A Joska;John A Joska;Jennifer Westgarth-Taylor;Jacqueline Hoare;Kevin G F Thomas

  • Psychobiology of mindfulness.

    Dan J Stein;Victoria Ives-Deliperi;Kevin G F Thomas

Frequent Co-Authors

Dan J. Stein
Dan J. Stein University of Cape Town
John A. Joska
John A. Joska University of Cape Town
W. Jake Jacobs
W. Jake Jacobs University of Arizona
Sandra W. Jacobson
Sandra W. Jacobson Wayne State University
Lynn Nadel
Lynn Nadel University of Arizona
Landon Myer
Landon Myer University of Cape Town
David S. Baldwin
David S. Baldwin University of Southampton
Mark Solms
Mark Solms University of Cape Town
Jack van Honk
Jack van Honk Utrecht University
Michael J. Boivin
Michael J. Boivin Michigan State University

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