World's Best Scientists 2026 revealed!

D-Index & Metrics

Neuroscience

D-Index
50
Citations
7271
World Ranking
5827
National Ranking
164

Tim Karl publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where Tim Karl sits on this spectrum.

38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientists 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38 publications 887+

This scientist: 138 publications — 37th percentile

37% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 887 publications or more.

Tim Karl D-index placement in Neuroscience in 2026

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

30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30 D-Index 163+

This scientist: 50 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

Overview

Tim Karl is a researcher affiliated with Western Sydney University in Australia. Their research primarily spans neuroscience and medicine, with a notable focus on subfields such as cellular and molecular neuroscience, molecular biology, pharmacology, neurology, and physiology.

The scope of their scientific work includes several main topics: cannabis and cannabinoid research, Alzheimer's disease research and treatments, neuroscience and neuropharmacology research, neuroinflammation and neurodegeneration mechanisms, neurotransmitter receptor influence on behavior, tryptophan and brain disorders, as well as GABA and rice research.

Tim Karl has contributed to multiple publications in various research venues. Frequent publication outlets include Behavioural Brain Research, Frontiers in Neuroscience, Pharmacology Biochemistry and Behavior, IBRO Neuroscience Reports, and Schizophrenia Bulletin.

Their recent papers demonstrate a focus on neurodegenerative diseases and cannabinoid-based therapies. Selected works include the following:

  • Chronic Treatment with 50 mg/kg Cannabidiol Improves Cognition and Moderately Reduces Aβ40 Levels in 12-Month-Old Male AβPPswe/PS1ΔE9 Transgenic Mice, 2020, Journal of Alzheimer s Disease
  • Medium-Dose Chronic Cannabidiol Treatment Reverses Object Recognition Memory Deficits of APPSwe/PS1ΔE9 Transgenic Female Mice, 2020, Frontiers in Pharmacology
  • Spatial Memory and Microglia Activation in a Mouse Model of Chronic Neuroinflammation and the Anti-inflammatory Effects of Apigenin, 2021, Frontiers in Neuroscience
  • Therapeutic properties of multi-cannabinoid treatment strategies for Alzheimer's disease, 2022, Frontiers in Neuroscience
  • Loss of LAMP5 interneurons drives neuronal network dysfunction in Alzheimer's disease, 2022, Acta Neuropathologica

Throughout their career, Tim Karl has collaborated frequently with several co-authors, including Rose Chesworth, Georgia Watt, Rossana Rosa Porto, Erika Gyengési, and Lars M. Ittner. These partnerships reflect ongoing engagement with diverse experts in related fields.

Best Publications

  • Behavioral phenotyping of mice in pharmacological and toxicological research.

    Tim Karl;Reinhard Pabst;Stephan von Hörsten

  • In vivo Evidence for Therapeutic Properties of Cannabidiol (CBD) for Alzheimer's Disease

    Georgia Watt;Tim Karl

  • A behavioural comparison of acute and chronic Δ9-tetrahydrocannabinol and cannabidiol in C57BL/6JArc mice

    Leonora E. Long;Rose Chesworth;Rose Chesworth;Xu-Feng Huang;Iain S. McGregor

  • Deletion of Abca7 increases cerebral amyloid-β accumulation in the J20 mouse model of Alzheimer's disease.

    Woojin S Kim;Hongyun Li;Hongyun Li;Kalani Ruberu;Kalani Ruberu;Sharon Chan;Sharon Chan

  • Cannabidiol potentiates Δ9-tetrahydrocannabinol (THC) behavioural effects and alters THC pharmacokinetics during acute and chronic treatment in adolescent rats

    Charlotte Klein;Emily Karanges;Adena Spiro;Alexander Wong

  • Peptide YY ablation in mice leads to the development of hyperinsulinaemia and obesity.

    Dana Boey;Shu Lin;Tim Karl;Paul A Baldock

  • Long-term Cannabidiol Treatment Prevents the Development of Social Recognition Memory Deficits in Alzheimer's Disease Transgenic Mice

    David Cheng;Adena S Spiro;Andrew M Jenner;Brett Garner

  • Heterozygous neuregulin 1 mice are more sensitive to the behavioural effects of Δ9-tetrahydrocannabinol

    Aurelie A Boucher;Aurelie A Boucher;Jonathon C Arnold;Liesl Duffy;Peter R Schofield;Peter R Schofield

  • Altered motor activity, exploration and anxiety in heterozygous neuregulin 1 mutant mice: implications for understanding schizophrenia

    Tim Karl;Liesl Duffy;Anna Scimone;Richard P Harvey

  • Chronic cannabidiol treatment improves social and object recognition in double transgenic APPswe/PS1∆E9 mice.

    David Cheng;Jac Kee Low;Warren Logge;Brett Garner

  • Behavioural profile of a new mouse model for NPY deficiency.

    Tim Karl;Liesl Duffy;Herbert Herzog

  • Y1 receptors regulate aggressive behavior by modulating serotonin pathways

    Tim Karl;Shu Lin;Christoph Schwarzer;Amanda Sainsbury

  • Distinct Neurobehavioural Effects of Cannabidiol in Transmembrane Domain Neuregulin 1 Mutant Mice

    Leonora E. Long;Rose Chesworth;Xu-Feng Huang;Alexander Wong

  • Effect of Y1 receptor deficiency on motor activity, exploration, and anxiety.

    Tim Karl;Thomas Henry Johnston Burne;Herbert Herzog

  • Neuregulin 1 hypomorphic mutant mice: enhanced baseline locomotor activity but normal psychotropic drug-induced hyperlocomotion and prepulse inhibition regulation.

    Maarten van den Buuse;Maarten van den Buuse;Lena Wischhof;Ruo Xi Lee;Sally Martin

  • Cognition in transmembrane domain neuregulin 1 mutant mice

    L. Duffy;E. Cappas;D. Lai;A.A. Boucher

  • Neuropeptide Y (NPY) cleaving enzymes: structural and functional homologues of dipeptidyl peptidase 4

    Nadine Frerker;Leona Wagner;Raik Wolf;Ulrich Heiser

  • Behavioral profiling of NPY in aggression and neuropsychiatric diseases.

    Tim Karl;Herbert Herzog

  • Septal Glucagon-Like Peptide 1 Receptor Expression Determines Suppression of Cocaine-Induced Behavior

    Anne E Harasta;John M Power;Georg von Jonquieres;Tim Karl

  • Transmembrane domain Nrg1 mutant mice show altered susceptibility to the neurobehavioural actions of repeated THC exposure in adolescence.

    Leonora E. Long;Rose Chesworth;Xu-Feng Huang;Iain S. McGregor

  • Behavioural effects of chronic haloperidol and risperidone treatment in rats

    Tim Karl;Liesl Duffy;Elizabeth O’Brien;Izuru Matsumoto

  • The schizophrenia susceptibility gene neuregulin 1 modulates tolerance to the effects of cannabinoids.

    Aurelie A Boucher;Glenn E Hunt;Jacques Micheau;Xufeng Huang

Frequent Co-Authors

Brett Garner
Brett Garner University of Wollongong
Herbert Herzog
Herbert Herzog Garvan Institute of Medical Research
Cynthia Shannon Weickert
Cynthia Shannon Weickert University of New South Wales
Xu-Feng Huang
Xu-Feng Huang University of Wollongong
Amanda Sainsbury
Amanda Sainsbury University of Western Australia
Iain S. McGregor
Iain S. McGregor University of Sydney
Lars M. Ittner
Lars M. Ittner Macquarie University
Peter R. Schofield
Peter R. Schofield Neuroscience Research Australia
Reinhard Pabst
Reinhard Pabst Hannover Medical School
Gilles J. Guillemin
Gilles J. Guillemin Bionyeri Pty Ltd

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