World's Best Scientists 2026 revealed!
Gregory M. Brown

Gregory M. Brown

D-Index & Metrics

Medicine

D-Index
87
Citations
23198
World Ranking
13787
National Ranking
567

Gregory M. Brown publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Gregory M. Brown sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 421 publications — 43rd percentile

43% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Gregory M. Brown D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Gregory M. Brown sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 87 D-Index — 34th percentile

34% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Gregory M. Brown is affiliated with the University of Toronto in Canada and has contributed extensively to research in the fields of neuroscience, medicine, and psychology. Their work prominently addresses the endocrine and autonomic systems, experimental and cognitive psychology, cognitive neuroscience, clinical psychology, and physiology.

The scientist's research mainly focuses on areas such as circadian rhythm and melatonin, sleep and related disorders, sleep and wakefulness research, COVID-19 and mental health, tryptophan and brain disorders, long-term effects of COVID-19, and dietary effects on health.

Their recent papers include:

  • Clarifying the role of sleep in depression: A narrative review (2020, Psychiatry Research)
  • Melatonin's neuroprotective role in mitochondria and its potential as a biomarker in aging, cognition and psychiatric disorders (2021, Translational Psychiatry)
  • Can Melatonin Be a Potential "Silver Bullet" in Treating COVID-19 Patients? (2020, Diseases)
  • Elderly as a High-risk Group during COVID-19 Pandemic: Effect of Circadian Misalignment, Sleep Dysregulation and Melatonin Administration (2020, Sleep and Vigilance)
  • Chronotherapy (2021, Handbook of Clinical Neurology)

Frequent co-authors of Gregory M. Brown include:

  • Seithikurippu R. Pandi-Perumal
  • Daniel P. Cardinali
  • Lindsay Melhuish Beaupre
  • Vanessa F. Gonçalves
  • James L. Kennedy

Publication venues where Gregory M. Brown has been frequently published are:

  • Melatonin Research
  • Diseases
  • Frontiers in Psychiatry
  • European Neuropsychopharmacology
  • Psychiatry Research

Best Publications

  • Melatonin—A pleiotropic, orchestrating regulator molecule

    Rüdiger Hardeland;Daniel P. Cardinali;Venkatramanujam Srinivasan;D. Warren Spence

  • Neuroanatomical correlates of encoding in episodic memory: levels of processing effect

    Shitij Kapur;Fergus I. M. Craik;Endel Tulving;Alan A. Wilson

  • Functional role of the prefrontal cortex in retrieval of memories: A PET study.

    Shitij Kapur;Fergus I. M. Craik;Corey Jones;Gregory M. Brown

  • Melatonin antioxidative defense: therapeutical implications for aging and neurodegenerative processes.

    Seithikurippu R. Pandi-Perumal;Seithikurippu R. Pandi-Perumal;Ahmed S. BaHammam;Gregory M. Brown;Gregory M. Brown;D. Warren Spence

  • Melatonin and its analogs in insomnia and depression.

    Daniel Pedro Cardinali;Venkataramanujan Srinivasan;Amnon Brzezinski;Gregory M. Brown;Gregory M. Brown

  • Dysfunctional Attitudes and 5-HT2 Receptors During Depression and Self-Harm

    Jeffrey H. Meyer;Shelley McMain;Sidney H. Kennedy;Lorne Korman

  • Effect of clonidine on growth hormone, prolactin, luteinizing hormone, follicle-stimulating hormone, and thyroid-stimulating hormone in the serum of normal men.

    Samarthji Lal;George Tolis;Joseph B. Martin;Gregory M. Brown

  • Aberrations in lymphocyte subpopulations and function during psychological stress.

    B Dorian;P Garfinkel;G Brown;A Shore

  • The effect of paroxetine on 5-HT(2A) receptors in depression: an [(18)F]setoperone PET imaging study.

    Jeffrey H. Meyer;Shitij Kapur;Beata Eisfeld;Gregory M. Brown

  • Worst-point suicidal plans: a dimension of suicidality predictive of past suicide attempts and eventual death by suicide.

    Thomas E Joiner;Robert A Steer;Gregory Brown;Aaron T Beck

  • Determination of N-acetylserotonin and melatonin activities in the pineal gland, retina, harderian gland, brain and serum of rats and chickens.

    S.F. Pang;G.M. Brown;L.J. Grota;J.W. Chambers

  • Differential modulation of GABAA receptor function by Mel1a and Mel1b receptors.

    Qi Wan;Heng-Ye Man;Fang Liu;Jodi Braunton

  • Dopamine/Neuroleptic Receptors in Basal Hypothalamus and Pituitary

    G.M. Brown;P. Seeman;T. Lee

  • Toward a brain map of auditory hallucinations.

    J M Cleghorn;S Franco;B Szechtman;R D Kaplan

  • The role of the left prefrontal cortex in verbal processing : semantic processing or willed action ?

    Shitij Kapur;Randi Rose;Peter F. Liddle;Robert B. Zipursky

  • Increased frontal and reduced parietal glucose metabolism in acute untreated schizophrenia.

    John M. Cleghorn;Edmund S. Garnett;Claude Nahmias;Gunter Firnau

  • Differential localization of N-acetylated indolealkylamines in CNS and the Harderian gland using immunohistology

    G.A. Bubenik;G.M. Brown;L.G. Grota

  • Substance abuse and schizophrenia: effect on symptoms but not on neurocognitive function.

    Cleghorn Jm;Kaplan Rd;Szechtman B;Szechtman H

  • Stress response patterns of plasma corticosterone, prolactin, and growth hormone in the rat, following handling or exposure to novel environment.

    Jo A. Seggie;Gregory M. Brown

  • Prospects of the Clinical Utilization of Melatonin

    George A. Bubenik;David E. Blask;Gregory M. Brown;Georges J.M. Maestroni

Frequent Co-Authors

Daniel P. Cardinali
Daniel P. Cardinali Pontifical Catholic University of Argentina
Sidney H. Kennedy
Sidney H. Kennedy University Health Network
Shitij Kapur
Shitij Kapur King's College London
Henry Szechtman
Henry Szechtman McMaster University
Paul Grof
Paul Grof University of Toronto
Alan A. Wilson
Alan A. Wilson Centre for Addiction and Mental Health
Sylvain Houle
Sylvain Houle University of Toronto
Rüdiger Hardeland
Rüdiger Hardeland University of Göttingen
Russel J. Reiter
Russel J. Reiter The University of Texas Health Science Center at San Antonio
Robert D. Levitan
Robert D. Levitan Centre for Addiction and Mental Health

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