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 64 3001 2760 187 173 375 13826
Neuroscience 64 3279 2998 192 173 427 14354

Tarek K. Rajji publications per year

The chart shows the history of publications by Tarek K. Rajji between 2006 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Tarek K. Rajji published across 20 years, from 2006 to 2025, averaging 26.1 papers a year. Output peaked at 63 publications in 2021. 89 of the 522 publications appeared in the last two years.

No. of publications
20 40 60
Bar chart. Horizontal axis: year, 2006 to 2025. Vertical axis: number of publications, 0 to 63. Peak 63 publications in 2021. 2006: 1 publication 2007: 1 publication 2008: 3 publications 2009: 4 publications 2010: 5 publications 2011: 7 publications 2012: 10 publications 2013: 18 publications 2014: 11 publications 2015: 23 publications 2016: 29 publications 2017: 50 publications 2018: 34 publications 2019: 39 publications 2020: 38 publications 2021: 63 publications 2022: 41 publications 2023: 56 publications 2024: 40 publications 2025: 49 publications
2006 2025

522 publications in total across all disciplines

View publications per year as a table
Tarek K. Rajji: publications per year, 2006 to 2025
Year Publications
2006 1
2007 1
2008 3
2009 4
2010 5
2011 7
2012 10
2013 18
2014 11
2015 23
2016 29
2017 50
2018 34
2019 39
2020 38
2021 63
2022 41
2023 56
2024 40
2025 49
Total 522
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Tarek K. Rajji 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 Tarek K. Rajji 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, 371–380 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: 375 publications — 93rd percentile

93% 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
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 63 375
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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Tarek K. Rajji 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 Tarek K. Rajji 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, 64–65 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: 64 D-Index — 75th percentile

75% 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
60–61 321
62–63 248
64–65 290 64
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

Tarek K. Rajji is affiliated with the Centre for Addiction and Mental Health in Canada. Their research focuses heavily on neuroscience and medicine, particularly in the fields of cognitive neuroscience, psychiatry and mental health, and neurology.

The main topics of their work include functional brain connectivity studies, transcranial magnetic stimulation studies, dementia and cognitive impairment research, EEG and brain-computer interfaces, and Alzheimer's disease research and treatments. Additional areas of study encompass neural and behavioral psychology and schizophrenia research and treatment.

Rajji has published extensively in prominent scientific journals. Frequent publication venues include:

  • Alzheimer s & Dementia
  • Biological Psychiatry
  • American Journal of Geriatric Psychiatry
  • International Psychogeriatrics
  • Journal of Alzheimer s Disease

Frequently collaborating with other researchers, Rajji's co-authors include Benoit H. Mulsant, Bruce G. Pollock, Sanjeev Kumar, Corinne E. Fischer, and Daniel M. Blumberger.

Among Rajji's recent papers are:

  • "Anticipating and Mitigating the Impact of the COVID-19 Pandemic on Alzheimer's Disease and Related Dementias" (2020), published in the American Journal of Geriatric Psychiatry
  • "Mortality rates in Alzheimer's disease and non-Alzheimer's dementias: a systematic review and meta-analysis" (2021), published in The Lancet Healthy Longevity
  • "Measures of resting state EEG rhythms for clinical trials in Alzheimer's disease: Recommendations of an expert panel" (2021), published in Alzheimer s & Dementia
  • "Cognitive effects and acceptability of non-invasive brain stimulation on Alzheimer's disease and mild cognitive impairment: a component network meta-analysis" (2020), published in the Journal of Neurology Neurosurgery & Psychiatry
  • "Effectiveness of Standard Sequential Bilateral Repetitive Transcranial Magnetic Stimulation vs Bilateral Theta Burst Stimulation in Older Adults With Depression" (2022), published in JAMA Psychiatry

Best Publications

  • Brief cognitive screening instruments: an update

    Zahinoor Ismail;Tarek K. Rajji;Kenneth I. Shulman

  • Age at onset and cognition in schizophrenia: meta-analysis.

    T. K. Rajji;Z. Ismail;B. H. Mulsant

  • Clinical utility and prospective of TMS–EEG

    Sara Tremblay;Sara Tremblay;Nigel C. Rogasch;Isabella Premoli;Daniel M. Blumberger

  • Age-related decline in white matter tract integrity and cognitive performance: A DTI tractography and structural equation modeling study

    Aristotle N. Voineskos;Tarek K. Rajji;Nancy J. Lobaugh;Dielle Miranda

  • Defining treatment-resistant schizophrenia and response to antipsychotics: A review and recommendation

    Takefumi Suzuki;Gary Remington;Gary Remington;Benoit H. Mulsant;Benoit H. Mulsant;Hiroyuki Uchida;Hiroyuki Uchida

  • Mortality rates in Alzheimer's disease and non-Alzheimer's dementias: a systematic review and meta-analysis

    Chih-Sung Liang;Dian-Jeng Li;Dian-Jeng Li;Fu-Chi Yang;Ping-Tao Tseng;Ping-Tao Tseng

  • Extent of Dorsolateral Prefrontal Cortex Plasticity and Its Association With Working Memory in Patients With Alzheimer Disease.

    Sanjeev Kumar;Sanjeev Kumar;Reza Zomorrodi;Zaid Ghazala;Zaid Ghazala;Zaid Ghazala;Michelle S. Goodman;Michelle S. Goodman

  • Neuroimaging Evidence for the Deficit Subtype of Schizophrenia

    Aristotle N. Voineskos;George Foussias;Jason Lerch;Daniel Felsky

  • Cognition, function, and disability in patients with schizophrenia: a review of longitudinal studies.

    Tarek K Rajji;Dielle Miranda;Benoit H Mulsant

  • Measures of resting state EEG rhythms for clinical trials in Alzheimer's disease: Recommendations of an expert panel

    Claudio Babiloni;Xianghong Arakaki;Hamed Azami;Karim Bennys

  • Functional consequences of neurite orientation dispersion and density in humans across the adult lifespan.

    Arash Nazeri;M. Mallar Chakravarty;David J. Rotenberg;Tarek K. Rajji

  • Characterization of Glutamatergic and GABA A -Mediated Neurotransmission in Motor and Dorsolateral Prefrontal Cortex Using Paired-Pulse TMS–EEG

    Robin F H Cash;Yoshihiro Noda;Yoshihiro Noda;Reza Zomorrodi;Natasha Radhu;Natasha Radhu

  • Dopamine D2 Receptor Occupancy and Cognition in Schizophrenia: Analysis of the CATIE Data

    Hitoshi Sakurai;Robert R. Bies;Robert R. Bies;Scott T. Stroup;Richard S. E. Keefe

  • Theta-Gamma Coupling and Working Memory in Alzheimer's Dementia and Mild Cognitive Impairment.

    Michelle S. Goodman;Sanjeev Kumar;Reza Zomorrodi;Zaid Ghazala

  • Efficacy, tolerability, and cognitive effects of deep transcranial magnetic stimulation for late-life depression: a prospective randomized controlled trial.

    Tyler S. Kaster;Tyler S. Kaster;Zafiris J. Daskalakis;Zafiris J. Daskalakis;Yoshihiro Noda;Yuliya Knyahnytska;Yuliya Knyahnytska

  • Gray Matter Changes in Late Life Depression—a Structural MRI Analysis

    Carmen Andreescu;Meryl A Butters;Amy Begley;Tarek Rajji

  • Can Repetitive Magnetic Stimulation Improve Cognition in Schizophrenia? Pilot Data from a Randomized Controlled Trial

    Mera S Barr;Faranak Farzan;Tarek K Rajji;Aristotle N Voineskos

  • Nature and course of cognitive function in late-life schizophrenia: A systematic review

    Tarek K. Rajji;Benoit H. Mulsant

  • Diffusion tensor tractography findings in schizophrenia across the adult lifespan

    Aristotle N. Voineskos;Nancy J. Lobaugh;Sylvain Bouix;Tarek K. Rajji

  • Brain structure, cognition, and brain age in schizophrenia, bipolar disorder, and healthy controls

    Saba Shahab;Benoit H Mulsant;Melissa L Levesque;Navona Calarco;Navona Calarco

  • The brain-derived neurotrophic factor Val66Met polymorphism and prediction of neural risk for Alzheimer disease.

    Aristotle N. Voineskos;Jason P. Lerch;Daniel Felsky;Sajid Shaikh

  • A meta-analysis of the effects of aging on motor cortex neurophysiology assessed by transcranial magnetic stimulation

    Apoorva Bhandari;Natasha Radhu;Faranak Farzan;Benoit H. Mulsant;Benoit H. Mulsant

  • The genome-wide supported microRNA-137 variant predicts phenotypic heterogeneity within schizophrenia

    T A Lett;M M Chakravarty;M M Chakravarty;D Felsky;D Felsky;E J Brandl

  • Treatment resistant schizophrenia and response to antipsychotics: A review

    Takefumi Suzuki;Gary Remington;Gary Remington;Benoit H. Mulsant;Benoit H. Mulsant;Tarek K. Rajji

Frequent Co-Authors

Benoit H. Mulsant
Benoit H. Mulsant Centre for Addiction and Mental Health
Zafiris J. Daskalakis
Zafiris J. Daskalakis University of California - San Diego School of Medicine
Bruce G. Pollock
Bruce G. Pollock University of Toronto
Corinne E. Fischer
Corinne E. Fischer St. Michael's Hospital
Aristotle N. Voineskos
Aristotle N. Voineskos Centre for Addiction and Mental Health
Daniel M. Blumberger
Daniel M. Blumberger Centre for Addiction and Mental Health
Nathan Herrmann
Nathan Herrmann Sunnybrook Health Science Centre
Ariel Graff-Guerrero
Ariel Graff-Guerrero Centre for Addiction and Mental Health
Mera S. Barr
Mera S. Barr University of Toronto
Christopher R. Bowie
Christopher R. Bowie Queen's University

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