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 67 2629 2411 155 142 190 12170
Medicine 71 20037 18785 843 797 208 13339

Paul J. Fletcher publications per year

The chart shows the history of publications by Paul J. Fletcher between 1984 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Paul J. Fletcher published across 42 years, from 1984 to 2025, averaging 5.5 papers a year. Output peaked at 11 publications in 2013. 12 of the 229 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1984 to 2025. Vertical axis: number of publications, 0 to 11. Peak 11 publications in 2013. 1984: 1 publication 1985: 1 publication 1986: 4 publications 1987: 2 publications 1988: 4 publications 1989: 4 publications 1990: 3 publications 1991: 4 publications 1992: 2 publications 1993: 4 publications 1994: 4 publications 1995: 6 publications 1996: 0 publications 1997: 2 publications 1998: 8 publications 1999: 9 publications 2000: 6 publications 2001: 4 publications 2002: 7 publications 2003: 8 publications 2004: 6 publications 2005: 5 publications 2006: 5 publications 2007: 8 publications 2008: 6 publications 2009: 6 publications 2010: 9 publications 2011: 8 publications 2012: 7 publications 2013: 11 publications 2014: 9 publications 2015: 6 publications 2016: 9 publications 2017: 10 publications 2018: 4 publications 2019: 7 publications 2020: 7 publications 2021: 2 publications 2022: 5 publications 2023: 4 publications 2024: 3 publications 2025: 9 publications
1984 2025

229 publications in total across all disciplines

View publications per year as a table
Paul J. Fletcher: publications per year, 1984 to 2025
Year Publications
1984 1
1985 1
1986 4
1987 2
1988 4
1989 4
1990 3
1991 4
1992 2
1993 4
1994 4
1995 6
1996 0
1997 2
1998 8
1999 9
2000 6
2001 4
2002 7
2003 8
2004 6
2005 5
2006 5
2007 8
2008 6
2009 6
2010 9
2011 8
2012 7
2013 11
2014 9
2015 6
2016 9
2017 10
2018 4
2019 7
2020 7
2021 2
2022 5
2023 4
2024 3
2025 9
Total 229
Download as CSV

Paul J. Fletcher 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 Paul J. Fletcher 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, 181–190 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: 190 publications — 66th percentile

66% 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
181–190 397 190
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
Download as CSV

Paul J. Fletcher 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 Paul J. Fletcher 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, 66–67 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: 67 D-Index — 78th percentile

78% 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
66–67 218 67
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
Download as CSV

Overview

Paul J. Fletcher is affiliated with the Centre for Addiction and Mental Health in Canada. Their research primarily spans the fields of Medicine and Neuroscience, with a focus on subfields such as Cellular and Molecular Neuroscience, Clinical Psychology, Pharmacology, Molecular Biology, and Physiology.

Their work addresses several key topics within these domains, including:

  • Neurotransmitter Receptor Influence on Behavior
  • Regulation of Appetite and Obesity
  • Cannabis and Cannabinoid Research
  • Receptor Mechanisms and Signaling
  • Psychedelics and Drug Studies
  • Pharmacology and Obesity Treatment
  • Schizophrenia research and treatment

Fletcher's recent publications include the following papers:

  • "Use of Immersive Virtual Reality in the Assessment and Treatment of Alzheimer's Disease: A Systematic Review," 2020, Journal of Alzheimer s Disease
  • "Once-Weekly Semaglutide in Adults With Alcohol Use Disorder," 2025, JAMA Psychiatry
  • "Median raphe serotonin neurons promote anxiety-like behavior via inputs to the dorsal hippocampus," 2020, Neuropharmacology
  • "Effects of exposure to chronic uncertainty and a sensitizing regimen of amphetamine injections on locomotion, decision-making, and dopamine receptors in rats," 2020, Neuropsychopharmacology
  • "Clozapine reliably increases the motivation for food: parsing the role of the 5-HT2c and H1 receptors," 2020, Psychopharmacology

Frequent co-authors collaborating with Fletcher include:

  • Zhaoxia Li
  • Anh D. Lê
  • Andrew R. Abela
  • Arya Rahbarnia
  • Douglas Funk

The research outputs of Fletcher have been frequently published in venues such as Psychopharmacology, Neuropharmacology, bioRxiv (Cold Spring Harbor Laboratory), Journal of Alzheimer s Disease, and JAMA Psychiatry.

Best Publications

  • Reinstatement of alcohol-seeking by priming injections of alcohol and exposure to stress in rats

    A D Lê;B Quan;W Juzytch;P J Fletcher

  • Antidepressant-Like Effects of Medial Prefrontal Cortex Deep Brain Stimulation in Rats

    Clement Hamani;Clement Hamani;Mustansir Diwan;Carlos E. Macedo;Marcus L. Brandão

  • Differential Effects of the 5-HT2A Receptor Antagonist M100,907 and the 5-HT2C Receptor Antagonist SB242,084 on Cocaine-induced Locomotor Activity, Cocaine Self-administration and Cocaine-induced Reinstatement of Responding

    Paul J Fletcher;Andrew J Grottick;Guy A Higgins

  • Cannabidiol, a non‐psychotropic component of cannabis, attenuates vomiting and nausea‐like behaviour via indirect agonism of 5‐HT1A somatodendritic autoreceptors in the dorsal raphe nucleus

    EM Rock;D Bolognini;CL Limebeer;MG Cascio

  • Dopamine transporter cell surface localization facilitated by a direct interaction with the dopamine D2 receptor

    Frank J S Lee;Lin Pei;Anna Moszczynska;Brian Vukusic

  • The amphetamine-induced sensitized state as a model of schizophrenia.

    R.E. Featherstone;S. Kapur;S. Kapur;P.J. Fletcher;P.J. Fletcher

  • Studies to investigate the role of 5-HT(2C) receptors on cocaine- and food-maintained behavior.

    Andrew J. Grottick;Paul J. Fletcher;Guy A. Higgins

  • Opposing effects of 5-HT(2A) and 5-HT(2C) receptor antagonists in the rat and mouse on premature responding in the five-choice serial reaction time test.

    Paul J. Fletcher;Paul J. Fletcher;Maria Tampakeras;Judy Sinyard;Guy A. Higgins

  • Dissociation between in vivo occupancy and functional antagonism of dopamine D2 receptors: comparing aripiprazole to other antipsychotics in animal models

    Sridhar Natesan;Greg E Reckless;José N Nobrega;José N Nobrega;Paul J Fletcher;Paul J Fletcher

  • The Dopamine D1-D2 Receptor Heteromer Localizes in Dynorphin/Enkephalin Neurons: INCREASED HIGH AFFINITY STATE FOLLOWING AMPHETAMINE AND IN SCHIZOPHRENIA *

    Melissa L. Perreault;Melissa L. Perreault;Ahmed Hasbi;Ahmed Hasbi;Mohammed Alijaniaram;Mohammed Alijaniaram;Theresa Fan;Theresa Fan

  • Disruption of dopamine D1 receptor gene expression attenuates alcohol-seeking behavior

    Mufida El-Ghundi;Susan R George;John Drago;Paul J Fletcher

  • Abnormalities in brain structure and behavior in GSK-3alpha mutant mice

    Oksana Kaidanovich-Beilin;Tatiana Lipina;Keizo Takao;Matthijs C van Eede

  • The 5-HT2A receptor antagonist M100,907 attenuates motor and 'impulsive-type' behaviours produced by NMDA receptor antagonism

    Guy A. Higgins;Michel Enderlin;Marie Haman;Paul J. Fletcher

  • Serotonin and drug reward: focus on 5-HT2C receptors.

    Guy A Higgins;Paul J Fletcher

  • Uncoupling the dopamine D1-D2 receptor complex exerts antidepressant-like effects

    Lin Pei;Shupeng Li;Min Wang;Mustansir Diwan

  • Spatial learning deficit in dopamine D1 receptor knockout mice

    Mufida El-Ghundi;Paul J Fletcher;John Drago;David R Sibley

  • The Role of Corticotropin-Releasing Factor in the Median Raphe Nucleus in Relapse to Alcohol

    A. D. Lê;S. Harding;W. Juzytsch;P. J. Fletcher

  • Reduced fear and aggression and altered serotonin metabolism in Gtf2ird1-targeted mice.

    E. J. Young;T. Lipina;E. Tam;A. Mandel

  • Sensitization to amphetamine, but not PCP, impairs attentional set shifting: reversal by a D1 receptor agonist injected into the medial prefrontal cortex.

    Paul J. Fletcher;Paul J. Fletcher;Catherine C. Tenn;Catherine C. Tenn;Zoë Rizos;Vedran Lovic

  • The 5-HT2C receptor agonist Ro60-0175 reduces cocaine self-administration and reinstatement induced by the stressor yohimbine, and contextual cues.

    Paul J Fletcher;Paul J Fletcher;Zoë Rizos;Judy Sinyard;Maria Tampakeras

  • The Nicotinic Acetylcholine Receptor α5 Subunit Plays a Key Role in Attention Circuitry and Accuracy

    Craig D. C. Bailey;Mariella De Biasi;Paul J. Fletcher;Evelyn K. Lambe

  • The 5-HT2C receptor agonist lorcaserin reduces nicotine self-administration, discrimination, and reinstatement: relationship to feeding behavior and impulse control.

    Guy A Higgins;Leo B Silenieks;Anne Rossmann;Zoe Rizos

Frequent Co-Authors

Gary Remington
Gary Remington Centre for Addiction and Mental Health
Shitij Kapur
Shitij Kapur King's College London
José N. Nobrega
José N. Nobrega Centre for Addiction and Mental Health
Susan R. George
Susan R. George University of Toronto
Fang Liu
Fang Liu Centre for Addiction and Mental Health
Brian F. O'Dowd
Brian F. O'Dowd Centre for Addiction and Mental Health
John C. Roder
John C. Roder University of Toronto
George Foussias
George Foussias Centre for Addiction and Mental Health
Clement Hamani
Clement Hamani University of Toronto
Martin Zack
Martin Zack University of Toronto

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring online psychology degrees opens the door to diverse career pathways, from counseling to research and therapy. Many students pursue a master's degree, a required step for those aiming to become licensed therapists. However, pathways and certification processes can vary depending on location and area of specialization.

For example, those interested in family and marriage therapy should become familiar with region-specific requirements. If you plan to practice in North Carolina, you’ll need to review the Greensboro mft certification requirements. For Nevada, check the Henderson mft education requirements. Hawaii also has unique guidelines—learn more about mft requirements in Honolulu. Aspiring practitioners in Texas should visit the section on how to become a marriage and family therapist in Houston.

Before enrolling in any program, it’s essential to research local standards, required credentials, and specialization options to ensure your education aligns with your long-term career aspirations.

Best Scientists Citing Paul J. Fletcher

Trending Scientists

Recently Published Articles