World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 58 3847 3545 412 392 156 14809

Thomas H. Bak publications per year

The chart shows the history of publications by Thomas H. Bak between 1991 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Thomas H. Bak published across 35 years, from 1991 to 2025, averaging 5.3 papers a year. Output peaked at 27 publications in 2016. 6 of the 184 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1991 to 2025. Vertical axis: number of publications, 0 to 27. Peak 27 publications in 2016. 1991: 1 publication 1992: 1 publication 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 1 publication 1998: 1 publication 1999: 4 publications 2000: 1 publication 2001: 5 publications 2002: 2 publications 2003: 4 publications 2004: 4 publications 2005: 3 publications 2006: 4 publications 2007: 3 publications 2008: 3 publications 2009: 2 publications 2010: 8 publications 2011: 4 publications 2012: 8 publications 2013: 18 publications 2014: 15 publications 2015: 17 publications 2016: 27 publications 2017: 9 publications 2018: 9 publications 2019: 6 publications 2020: 5 publications 2021: 8 publications 2022: 4 publications 2023: 1 publication 2024: 3 publications 2025: 3 publications
1991 2025

184 publications in total across all disciplines

View publications per year as a table
Thomas H. Bak: publications per year, 1991 to 2025
Year Publications
1991 1
1992 1
1993 0
1994 0
1995 0
1996 0
1997 1
1998 1
1999 4
2000 1
2001 5
2002 2
2003 4
2004 4
2005 3
2006 4
2007 3
2008 3
2009 2
2010 8
2011 4
2012 8
2013 18
2014 15
2015 17
2016 27
2017 9
2018 9
2019 6
2020 5
2021 8
2022 4
2023 1
2024 3
2025 3
Total 184
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Thomas H. Bak 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 Thomas H. Bak 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, 151–160 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: 156 publications — 52nd percentile

52% 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
121–130 670
131–140 644
141–150 597
151–160 576 156
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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Thomas H. Bak 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 Thomas H. Bak 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, 58–59 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: 58 D-Index — 67th percentile

67% 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
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 58
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

Thomas H. Bak is affiliated with the University of Edinburgh in the United Kingdom. Their research spans several disciplines within medicine, with a particular emphasis on cognitive neuroscience, developmental and educational psychology, psychiatry and mental health, neurology, and critical care and intensive care medicine.

The scientist's work covers multiple main topics, including:

  • Neurobiology of Language and Bilingualism
  • Dementia and Cognitive Impairment Research
  • Organ Transplantation Techniques and Outcomes
  • Liver Disease and Transplantation
  • Reading and Literacy Development
  • Amyotrophic Lateral Sclerosis Research
  • Language Development and Disorders

Among the recent papers authored or coauthored by Thomas H. Bak are the following:

  • The 2022 symposium on dementia and brain aging in low- and middle-income countries: Highlights on research, diagnosis, care, and impact (2024), published in Alzheimer's & Dementia
  • The Nairobi Declaration-Reducing the burden of dementia in low- and middle-income countries (LMICs): Declaration of the 2022 Symposium on Dementia and Brain Aging in LMICs (2023), published in Alzheimer's & Dementia
  • Comparing Face-to-face and Online Teaching of Written and Spoken Chinese to Adult Learners: An Edinburgh-Sheffield Case Study (2020), published in International Journal of Chinese Language Teaching
  • Detection of early allograft dysfunction at 30 minutes of reperfusion in liver transplantation: An intraoperative diagnostic tool with real time assessment of graft function (2020), published in The American Journal of Surgery
  • Interference suppression in bilingualism: Stimulus-Stimulus vs. Stimulus-Response conflict (2021), published in Bilingualism Language and Cognition

Frequent coauthors of Thomas H. Bak include:

  • Mariana Vega-Mendoza (5 joint publications)
  • Hunter B. Moore (4 joint publications)
  • James J. Pomposelli (4 joint publications)
  • Michael Wachs (4 joint publications)
  • Kendra D. Conzen (4 joint publications)

Thomas H. Bak's work is frequently published in venues such as:

  • Alzheimer's & Dementia (5 publications)
  • The American Journal of Surgery (4 publications)
  • Bilingualism Language and Cognition (2 publications)
  • Healthcare (2 publications)
  • International Journal of Chinese Language Teaching (1 publication)

Their interdisciplinary research integrates clinical investigation with cognitive and language studies, reflecting a broad interest in neurological health, language development, and medical outcomes related to organ transplantation and liver disease.

Best Publications

  • Criteria for the diagnosis of corticobasal degeneration.

    Melissa J. Armstrong;Irene Litvan;Anthony E. Lang;Thomas H. Bak

  • Clinicopathological correlates in frontotemporal dementia.

    John R. Hodges;John R. Hodges;R. Rhys Davies;John H. Xuereb;Barney Casey

  • Focal cortical presentations of Alzheimer's disease.

    S. Alladi;J. Xuereb;T. Bak;P. Nestor

  • Consensus classification of posterior cortical atrophy

    Sebastian J. Crutch;Jonathan M. Schott;Gil D. Rabinovici;Melissa Murray

  • Screening for cognition and behaviour changes in ALS

    Sharon Abrahams;Judith Newton;Elaine Niven;Jennifer Foley

  • Bilingualism delays age at onset of dementia, independent of education and immigration status

    Suvarna Alladi;Thomas H. Bak;Vasanta Duggirala;Bapiraju Surampudi

  • Selective impairment of verb processing associated with pathological changes in Brodmann areas 44 and 45 in the motor neurone disease-dementia-aphasia syndrome

    Thomas H. Bak;Dominic G. O'Donovan;John H. Xuereb;Simon Boniface

  • Frequency and Prognostic Value of Cognitive Disorders in Stroke Patients

    Marcin Leśniak;Thomas Bak;Wojciech Czepiel;Joanna Seniów

  • The differentiation of semantic dementia and frontal lobe dementia (temporal and frontal variants of frontotemporal dementia) from early Alzheimer's disease: a comparative neuropsychological study

    J R Hodges;K Patterson;R Ward;P Garrard

  • Cognitive impairment in patients with multiple system atrophy and progressive supranuclear palsy

    Richard G. Brown;Lucette Lacomblez;Bernard G. Landwehrmeyer;Thomas Bak

  • Does bilingualism influence cognitive aging

    Thomas H. Bak;Jack J. Nissan;Michael M. Allerhand;Ian J. Deary

  • Kissing and dancing - a test to distinguish the lexical and conceptual contributions to noun/verb and action/object dissociation. Preliminary results in patients with frontotemporal dementia

    Thomas H Bak;John R Hodges;John R Hodges

  • The effects of motor neurone disease on language: further evidence

    Thomas H. Bak;John R. Hodges;John R. Hodges

  • Dementia in Latin America: Assessing the present and envisioning the future

    Mario A. Parra;Sandra Baez;Ricardo Allegri;Ricardo Nitrini

  • Diagnostic criteria for corticobasal syndrome: a comparative study

    Robert Mathew;Thomas H Bak;John R Hodges

  • Validation of the Edinburgh Cognitive and Behavioural Amyotrophic Lateral Sclerosis Screen (ECAS): A cognitive tool for motor disorders

    Elaine Niven;Judith Newton;Jennifer Foley;Shuna Colville

  • Subcortical dementia revisited: Similarities and differences in cognitive function between progressive supranuclear palsy (PSP), corticobasal degeneration (CBD) and multiple system atrophy (MSA)

    T H Bak;L M Crawford;V C Hearn;P S Mathuranath

  • What wires together dies together: Verbs, actions and neurodegeneration in motor neuron disease

    Thomas H. Bak;Siddharthan Chandran

  • Corticobasal degeneration as a cognitive disorder.

    Naida L. Graham;Thomas H. Bak;John R. Hodges

  • Impact of Bilingualism on Cognitive Outcome After Stroke.

    Suvarna Alladi;Thomas H. Bak;Shailaja Mekala;Amulya Rajan

  • Clinical, Imaging and Pathological Correlates of a Hereditary Deficit in Verb and Action Processing.

    Thomas H. Bak;Despina Yancopoulou;Peter J. Nestor;John H. Xuereb

Frequent Co-Authors

John R. Hodges
John R. Hodges University of Sydney
Sharon Abrahams
Sharon Abrahams University of Edinburgh
Antonella Sorace
Antonella Sorace University of Edinburgh
Siddharthan Chandran
Siddharthan Chandran University of Edinburgh
Glenda M. Halliday
Glenda M. Halliday University of Sydney
Peter J. Nestor
Peter J. Nestor University of Queensland
Karalyn Patterson
Karalyn Patterson MRC Cognition and Brain Sciences Unit
Mark E. Bastin
Mark E. Bastin University of Edinburgh
Sergio Della Sala
Sergio Della Sala University of Edinburgh
Bruno Dubois
Bruno Dubois Université Paris Cité

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