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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Neuroscience 42 7587 7000 637 604 179 8385

Iris-Katharina Penner publications per year

The chart shows the history of publications by Iris-Katharina Penner between 1970 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Iris-Katharina Penner published across 56 years, from 1970 to 2025, averaging 4.1 papers a year. Output peaked at 25 publications in 2023. 25 of the 232 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1970 to 2025. Vertical axis: number of publications, 0 to 25. Peak 25 publications in 2023. 1970: 1 publication 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 0 publications 1999: 0 publications 2000: 1 publication 2001: 2 publications 2002: 1 publication 2003: 2 publications 2004: 3 publications 2005: 4 publications 2006: 6 publications 2007: 14 publications 2008: 7 publications 2009: 11 publications 2010: 5 publications 2011: 5 publications 2012: 12 publications 2013: 12 publications 2014: 8 publications 2015: 12 publications 2016: 11 publications 2017: 7 publications 2018: 8 publications 2019: 4 publications 2020: 16 publications 2021: 8 publications 2022: 22 publications 2023: 25 publications 2024: 11 publications 2025: 14 publications
1970 2025

232 publications in total across all disciplines

View publications per year as a table
Iris-Katharina Penner: publications per year, 1970 to 2025
Year Publications
1970 1
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 0
1992 0
1993 0
1994 0
1995 0
1996 0
1997 0
1998 0
1999 0
2000 1
2001 2
2002 1
2003 2
2004 3
2005 4
2006 6
2007 14
2008 7
2009 11
2010 5
2011 5
2012 12
2013 12
2014 8
2015 12
2016 11
2017 7
2018 8
2019 4
2020 16
2021 8
2022 22
2023 25
2024 11
2025 14
Total 232
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Iris-Katharina Penner 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 Iris-Katharina Penner sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 86 bars. Horizontal axis: publications, 38–47 to 887+. Vertical axis: number of scientists, 0 to 539. Most scientists, 539, have 98–107 publications. The last bar groups every scientist with 887 publications or more. The highlighted bar, 178–187 publications, is where this scientist sits. 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 scientist 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38–47 publications 887+

This scientist: 179 publications — 55th percentile

55% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Neuroscience scientists by publication count, Research.com 2026 ranking edition. Based on 9,597 ranked scientists.
Publications Scientists This scientist
38–47 18
48–57 79
58–67 193
68–77 323
78–87 406
88–97 452
98–107 539
108–117 505
118–127 522
128–137 469
138–147 456
148–157 459
158–167 397
168–177 383
178–187 350 179
188–197 302
198–207 306
208–217 262
218–227 242
228–237 220
238–247 203
248–257 174
258–267 176
268–277 175
278–287 125
288–297 116
298–307 127
308–317 128
318–327 99
328–337 89
338–347 78
348–357 96
358–367 66
368–377 59
378–387 65
388–397 54
398–407 48
408–417 49
418–427 34
428–437 31
438–447 30
448–457 31
458–467 36
468–477 40
478–487 35
488–497 30
498–507 23
508–517 26
518–527 20
528–537 23
538–547 20
548–557 20
558–567 17
568–577 14
578–587 20
588–597 20
598–607 19
608–617 18
618–627 17
628–637 11
638–647 11
648–657 11
658–667 8
668–677 7
678–687 11
688–697 10
698–707 4
708–717 6
718–727 5
728–737 5
738–747 9
748–757 9
758–767 3
768–777 7
778–787 7
788–797 6
798–807 2
808–817 2
818–827 7
828–837 0
838–847 9
848–857 3
858–867 1
868–877 3
878–886 6
887+ 100
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Iris-Katharina Penner 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 Iris-Katharina Penner sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 68 bars. Horizontal axis: D-Index, 30–31 to 163+. Vertical axis: number of scientists, 0 to 512. Most scientists, 512, have 46–47 D-Index. The last bar groups every scientist with 163 D-Index or more. The highlighted bar, 42–43 D-Index, is where this scientist sits. 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
30–31 D-Index 163+

This scientist: 42 D-Index — 22nd percentile

22% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Neuroscience scientists by D-index, Research.com 2026 ranking edition. Based on 9,597 ranked scientists.
D-Index Scientists This scientist
30–31 42
32–33 172
34–35 296
36–37 435
38–39 459
40–41 456
42–43 467 42
44–45 478
46–47 512
48–49 435
50–51 425
52–53 418
54–55 392
56–57 357
58–59 334
60–61 328
62–63 260
64–65 278
66–67 239
68–69 250
70–71 210
72–73 200
74–75 189
76–77 170
78–79 146
80–81 113
82–83 126
84–85 100
86–87 84
88–89 99
90–91 84
92–93 85
94–95 72
96–97 76
98–99 45
100–101 49
102–103 43
104–105 32
106–107 45
108–109 50
110–111 32
112–113 39
114–115 32
116–117 29
118–119 27
120–121 19
122–123 23
124–125 27
126–127 16
128–129 24
130–131 13
132–133 21
134–135 17
136–137 14
138–139 15
140–141 10
142–143 10
144–145 13
146–147 9
148–149 8
150–151 6
152–153 6
154–155 7
156–157 7
158–159 10
160–161 4
162 8
163+ 100
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Overview

Iris-Katharina Penner is affiliated with Heinrich Heine University Düsseldorf in Germany. Their research primarily focuses on the field of Medicine, with a strong emphasis on pathology, neurology, psychiatry, molecular biology, and immunology. The scientist's work includes a notable concentration on multiple sclerosis and related neurological and immunological conditions.

The main topics of their research encompass multiple sclerosis research studies, fibromyalgia and chronic fatigue syndrome research, long-term effects of COVID-19, functional brain connectivity studies, neurogenesis and neuroplasticity mechanisms, neuroinflammation and neurodegeneration mechanisms, and advanced neuroimaging techniques and applications.

Penner has contributed articles to frequent publication venues including Multiple Sclerosis and Related Disorders, Neurology, Frontiers in Neurology, European Journal of Neurology, and the Journal of Neurology.

The scientist has collaborated extensively with several co-authors, among whom are Melanie Filser, Matthias Grothe, Alina Renner, Carolin Balloff, and Ludwig Kappos.

Some of Iris-Katharina Penner's recent papers include:

  • The transitional phase of multiple sclerosis: Characterization and conceptual framework, 2020, Multiple Sclerosis and Related Disorders
  • Vitamin D, smoking, EBV, and long-term cognitive performance in MS, 2020, Neurology
  • Brain age as a surrogate marker for cognitive performance in multiple sclerosis, 2022, European Journal of Neurology
  • Levels of brain-derived neurotrophic factor in patients with multiple sclerosis, 2020, Annals of Clinical and Translational Neurology
  • Serum neurofilament light chain, 2020, Neurology Neuroimmunology & Neuroinflammation

Best Publications

  • Recommendations for a Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS)

    Dawn Langdon;M P Amato;J Boringa;B Brochet

  • The fatigue scale for motor and cognitive functions (FSMC) : validation of a new instrument to assess multiple sclerosis-related fatigue

    IK Penner;C. Raselli;M. Stöcklin;K. Opwis

  • Clinical and imaging assessment of cognitive dysfunction in multiple sclerosis

    Maria A Rocca;Maria Pia Amato;Nicola De Stefano;Christian Enzinger

  • MS quality of life, depression, and fatigue improve after mindfulness training: A randomized trial

    P. Grossman;L. Kappos;H. Gensicke;M. D'Souza

  • Brief International Cognitive Assessment for MS (BICAMS): international standards for validation

    Ralph H B Benedict;Maria Pia Amato;Jan Boringa;Bruno Brochet

  • Fatigue as a symptom or comorbidity of neurological diseases

    Iris-Katharina Penner;Friedemann Paul

  • Analysis of impairment related functional architecture in MS patients during performance of different attention tasks.

    Iris-Katharina Penner;Martin Rausch;Ludwig Kappos;Klaus Opwis

  • Towards the implementation of ‘no evidence of disease activity’ in multiple sclerosis treatment: the multiple sclerosis decision model

    Martin Stangel;Iris Katharina Penner;Boris A. Kallmann;Carsten Lukas

  • Working memory training in patients with multiple sclerosis - comparison of two different training schedules.

    Annamarie Vogt;Ludwig Kappos;Pasquale Calabrese;Pasquale Calabrese;Markus Stöcklin

  • Structural and functional imaging approaches in attention deficit/hyperactivity disorder: does the temporal lobe play a key role?

    Maja Kobel;Nina Bechtel;Nina Bechtel;Karsten Specht;Markus Klarhöfer

  • Multiple sclerosis and fatigue: A review on the contribution of inflammation and immune-mediated neurodegeneration.

    Unknown

  • Fatigue in multiple sclerosis: relation to depression, physical impairment, personality and action control.

    I.-K. Penner;N. Bechtel;C. Raselli;M. Stöcklin

  • Contribution of cortical and white matter lesions to cognitive impairment in multiple sclerosis.

    Athina Papadopoulou;Nicole Müller-Lenke;Yvonne Naegelin;Gabriela Kalt

  • Effects of methylphenidate on working memory functioning in children with attention deficit/hyperactivity disorder.

    Maja Kobel;Nina Bechtel;Peter Weber;Karsten Specht

  • Cognitive impairment and cortical reorganization in children with benign epilepsy with centrotemporal spikes.

    Alexandre N. Datta;Nadine Oser;Nadine Oser;Florian Bauder;Oliver Maier

  • The relationship between total and regional corpus callosum atrophy, cognitive impairment and fatigue in multiple sclerosis patients:

    Özgür Yaldizli;Iris-Katharina Penner;Iris-Katharina Penner;Karl Frontzek;Yvonne Naegelin

  • Natalizumab Treatment Reduces Fatigue in Multiple Sclerosis. Results from the TYNERGY Trial; A Study in the Real Life Setting

    Anders Svenningsson;Eva Falk;Elisabeth G. Celius;Siegrid Fuchs

  • Fluctuations of spontaneous EEG topographies predict disease state in relapsing-remitting multiple sclerosis.

    Markus Gschwind;Martin Hardmeier;Dimitri Van De Ville;Miralena I. Tomescu

  • Pediatric multiple sclerosis: Cognition and mood

    Maria Pia Amato;Lauren B. Krupp;Leigh E. Charvet;Iris Penner

  • Randomised controlled trial of a self-guided online fatigue intervention in multiple sclerosis.

    Jana Pöttgen;Rona Moss-Morris;Janina-Maria Wendebourg;Lena Feddersen

  • Cognitive dysfunctions in multiple sclerosis--a "multiple disconnection syndrome"?

    Pasquale Calabrese;Iris Katharina Penner

  • Cerebellar Abnormalities Contribute to Disability Including Cognitive Impairment in Multiple Sclerosis

    Katrin Weier;Iris K. Penner;Stefano Magon;Michael Amann

  • Therapy-induced plasticity of cognitive functions in MS patients : insights from fMRI

    Iris-Katharina Penner;Ludwig Kappos;Martin Rausch;Klaus Opwis

Frequent Co-Authors

Klaus Opwis
Klaus Opwis University of Basel
Ludwig Kappos
Ludwig Kappos University Hospital of Basel
Till Sprenger
Till Sprenger University Hospital of Basel
Achim Gass
Achim Gass Heidelberg University
Karsten Specht
Karsten Specht University of Bergen
Klaus Scheffler
Klaus Scheffler Max Planck Society
Hans-Peter Hartung
Hans-Peter Hartung Heinrich Heine University Düsseldorf
Martin Stangel
Martin Stangel Hannover Medical School
Frederik Barkhof
Frederik Barkhof University College London
Andreas K. Engel
Andreas K. Engel Universität Hamburg

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