World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
61
Citations
13835
World Ranking
3389
National Ranking
1914

Gerhard Hellemann 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 Gerhard Hellemann sits on this spectrum.

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 publications 705+

This scientist: 223 publications — 75th percentile

75% of scientists in this discipline score the same or lower.

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

Gerhard Hellemann 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 Gerhard Hellemann sits on this spectrum.

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 D-Index 144+

This scientist: 61 D-Index — 71st percentile

71% of scientists in this discipline score the same or lower.

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

Overview

Gerhard Hellemann is affiliated with the University of California, Los Angeles in the United States. Their research work spans the fields of Medicine and Neuroscience, with a significant focus on subfields such as Cognitive Neuroscience, Psychiatry and Mental Health, Experimental and Cognitive Psychology, Genetics, and Clinical Psychology.

Their research covers a broad range of topics, including:

  • Functional Brain Connectivity Studies
  • Schizophrenia research and treatment
  • Treatment of Major Depression
  • Mental Health Research Topics
  • Autism Spectrum Disorder Research
  • Pelvic floor disorders treatments
  • Tryptophan and brain disorders

Gerhard Hellemann has contributed to numerous scientific publications. Some of the recent notable papers include:

  • The Autism Biomarkers Consortium for Clinical Trials (ABC-CT): Scientific Context, Study Design, and Progress Toward Biomarker Qualification, 2020, Frontiers in Integrative Neuroscience
  • A Multisite Randomized Controlled Trial Comparing the Effects of Intervention Intensity and Intervention Style on Outcomes for Young Children With Autism, 2020, Journal of the American Academy of Child & Adolescent Psychiatry
  • The Autism Biomarkers Consortium for Clinical Trials: Initial Evaluation of a Battery of Candidate EEG Biomarkers, 2022, American Journal of Psychiatry
  • Biomarker Acquisition and Quality Control for Multi-Site Studies: The Autism Biomarkers Consortium for Clinical Trials, 2020, Frontiers in Integrative Neuroscience
  • Hippocampal subregions and networks linked with antidepressant response to electroconvulsive therapy, 2020, Molecular Psychiatry

Collaboration with other researchers features prominently in their work. Frequent co-authors include:

  • Katherine L. Narr
  • Randall Espinoza
  • Antoni Kubicki
  • Benjamin Wade
  • Sonya S. Brady

Their studies have been published in several venues repeatedly, reflecting institutional associations or focus interests, including:

  • Biological Psychiatry
  • Psychological Medicine
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Biological Psychiatry Cognitive Neuroscience and Neuroimaging
  • Translational Psychiatry

Best Publications

  • Symptoms as mediators of the relationship between neurocognition and functional outcome in schizophrenia: a meta-analysis.

    Joseph Ventura;Gerhard S. Hellemann;April D. Thames;Vanessa Koellner

  • Oral curcumin for Alzheimer's disease: tolerability and efficacy in a 24-week randomized, double blind, placebo-controlled study.

    John M Ringman;Sally A Frautschy;Edmond Teng;Aynun N Begum

  • Social Cognition in Schizophrenia, Part 1: Performance Across Phase of Illness

    Michael F. Green;Carrie E. Bearden;Tyrone D. Cannon;Alan P. Fiske

  • Randomized comparative efficacy study of parent-mediated interventions for toddlers with autism.

    Connie Kasari;Amanda Gulsrud;Tanya Paparella;Gerhard Hellemann

  • From Perception to Functional Outcome in Schizophrenia: Modeling the Role of Ability and Motivation

    Michael F. Green;Gerhard Hellemann;William P. Horan;Junghee Lee

  • Longitudinal Follow-Up of Children with Autism Receiving Targeted Interventions on Joint Attention and Play.

    Connie Kasari;Connie Kasari;Amanda Gulsrud;Amanda Gulsrud;Stephanny Freeman;Tanya Paparella

  • Social Cognition in Schizophrenia, Part 2: 12-Month Stability and Prediction of Functional Outcome in First-Episode Patients

    William P. Horan;William P. Horan;Michael F. Green;Michael F. Green;Michael DeGroot;Michael DeGroot;Alan Fiske

  • Effects of Antenatal Depression and Antidepressant Treatment on Gestational Age at Birth and Risk of Preterm Birth

    Rita Suri;Lori Altshuler;Gerhard Hellemann;Vivien K. Burt

  • Long-Acting Injectable Risperidone for Relapse Prevention and Control of Breakthrough Symptoms After a Recent First Episode of Schizophrenia. A Randomized Clinical Trial.

    Kenneth L. Subotnik;Laurie R. Casaus;Joseph Ventura;John S. Luo

  • Symptom Domains and Neurocognitive Functioning Can Help Differentiate Social Cognitive Processes in Schizophrenia: A Meta-Analysis

    Joseph Ventura;Rachel C. Wood;Gerhard S. Hellemann

  • Add-on Treatment of Benzoate for Schizophrenia: A Randomized, Double-blind, Placebo-Controlled Trial of d-Amino Acid Oxidase Inhibitor

    Hsien-Yuan Lane;Ching-Hua Lin;Michael F. Green;Michael F. Green;Gerhard Hellemann

  • Withdrawal symptoms in abstinent methamphetamine-dependent subjects.

    Todd Zorick;Liam Nestor;Karen Miotto;Catherine Sugar

  • Disorganization and Reality Distortion in Schizophrenia: A Meta-Analysis of the Relationship between Positive Symptoms and Neurocognitive Deficits

    Joseph Ventura;April D. Thames;Rachel C. Wood;Lisa H. Guzik;Lisa H. Guzik

  • A Multisite Randomized Controlled Two-Phase Trial of the Early Start Denver Model Compared to Treatment as Usual

    Sally J. Rogers;Annette Estes;Catherine Lord;Jeff Munson

  • Modeling Deficits From Early Auditory Information Processing to Psychosocial Functioning in Schizophrenia.

    Michael L. Thomas;Michael F. Green;Gerhard Hellemann;Catherine A. Sugar

  • Risky decision making, prefrontal cortex, and mesocorticolimbic functional connectivity in methamphetamine dependence.

    Milky Kohno;Angelica M. Morales;Dara G. Ghahremani;Gerhard Hellemann

  • Prevalence and correlates of eating disorders in 875 patients with bipolar disorder

    Susan L. McElroy;Mark A. Frye;Gerhard Hellemann;Lori Altshuler;Lori Altshuler

  • Examining predictive models of HRQOL in a population-based, multiethnic sample of women with breast carcinoma

    Kimlin T. Ashing-Giwa;Kimlin T. Ashing-Giwa;Judith S. Tejero;Judith S. Tejero;Jinsook Kim;Geraldine V. Padilla

  • Volume of the human Hippocampus and clinical response following Electroconvulsive Therapy

    Leif Oltedal;Katherine L. Narr;Christopher Abbott;Amit Anand

  • Efficacy and specificity of Social Cognitive Skills Training for outpatients with psychotic disorders

    William P. Horan;William P. Horan;Robert S. Kern;Robert S. Kern;Cory Tripp;Gerhard Hellemann

  • Amygdala astrocyte reduction in subjects with major depressive disorder but not bipolar disorder.

    Lori L Altshuler;Osama A Abulseoud;Lara Foland-Ross;George Bartzokis;George Bartzokis

Frequent Co-Authors

Michael F. Green
Michael F. Green University of California, Los Angeles
Keith H. Nuechterlein
Keith H. Nuechterlein University of California, Los Angeles
Jonathan K. Wynn
Jonathan K. Wynn University of California, Los Angeles
Joseph Ventura
Joseph Ventura University of California, Los Angeles
Kenneth L. Subotnik
Kenneth L. Subotnik University of California, Los Angeles
Katherine L. Narr
Katherine L. Narr University of California, Los Angeles
Edythe D. London
Edythe D. London University of California, Los Angeles
Junghee Lee
Junghee Lee University of California, Los Angeles
Robert S. Kern
Robert S. Kern University of California, Los Angeles
Lori L. Altshuler
Lori L. Altshuler University of California, Los Angeles

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