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Iris-Tatjana Kolassa

Iris-Tatjana Kolassa

University of Ulm
Germany

D-Index & Metrics

Psychology

D-Index
48
Citations
8350
World Ranking
5969
National Ranking
282

Iris-Tatjana Kolassa 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 Iris-Tatjana Kolassa 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: 176 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Iris-Tatjana Kolassa 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 Iris-Tatjana Kolassa 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: 48 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Overview

Iris-Tatjana Kolassa is affiliated with the University of Ulm in Germany. Their research primarily spans the fields of Psychology, Medicine, and Neuroscience, with a focus on multiple subfields including Clinical Psychology, Behavioral Neuroscience, Molecular Biology, Biological Psychiatry, and Pediatrics, Perinatology and Child Health.

The scientist's scholarly work covers a range of topics such as Stress Responses and Cortisol, Child Abuse and Trauma, Tryptophan and brain disorders, Birth, Development, and Health, Epigenetics and DNA Methylation, Posttraumatic Stress Disorder Research, and Neuroendocrine regulation and behavior.

Recent publications include the following papers:

  • "Evolutionary conserved role of neural cell adhesion molecule-1 in memory" (2020), published in Translational Psychiatry
  • "Salivary beta-endorphin in nonsuicidal self-injury: an ambulatory assessment study" (2021), published in Neuropsychopharmacology
  • "Childhood maltreatment is associated with changes in mitochondrial bioenergetics in maternal, but not in neonatal immune cells" (2020), published in Proceedings of the National Academy of Sciences
  • "DNA methylation changes following narrative exposure therapy in a randomized controlled trial with female former child soldiers" (2021), published in Scientific Reports
  • "Epigenetics of traumatic stress: The association of NR3C1 methylation and posttraumatic stress disorder symptom changes in response to narrative exposure therapy" (2023), published in Translational Psychiatry

Kolassa frequently collaborates with several co-authors who have contributed to multiple publications. These collaborators include:

  • Alexander Behnke (25 joint works)
  • Anja M. Gumpp (20 joint works)
  • Alexander Karabatsiakis (18 joint works)
  • Laura Ramo-Fernández (10 joint works)
  • Matthias Mack (10 joint works)

Their research has appeared frequently in specific publication venues, highlighting areas of continued focus. Notable venues and the number of publications there include:

  • Zeitschrift für Klinische Psychologie und Psychotherapie (5 publications)
  • Translational Psychiatry (4 publications)
  • Scientific Reports (3 publications)
  • Psychological Medicine (3 publications)
  • Brain Behavior and Immunity (3 publications)

Best Publications

  • Effect of task conditions on brain responses to threatening faces in social phobics: an event-related functional magnetic resonance imaging study.

    Thomas Straube;Iris-Tatjana Kolassa;Madlen Glauer;Hans-Joachim Mentzel

  • The risk of posttraumatic stress disorder after trauma depends on traumatic load and the catechol-O-methyltransferase Val158Met polymorphism.

    Iris-Tatjana Kolassa;Stephan Kolassa;Verena Ertl;Andreas Papassotiropoulos

  • Spontaneous Remission From PTSD Depends on the Number of Traumatic Event Types Experienced

    Iris Kolassa;Verena Ertl;Cindy Eckart;Stephan Kolassa

  • Mitochondrial respiration in peripheral blood mononuclear cells correlates with depressive subsymptoms and severity of major depression

    Alexander Karabatsiakis;Christina Böck;Juan Salinas-Manrique;Stephan Kolassa

  • Posttraumatic stress disorder is associated with an enhanced spontaneous production of pro-inflammatory cytokines by peripheral blood mononuclear cells

    Hannah Gola;Hannah Gola;Harald Engler;Annette Sommershof;Hannah Adenauer

  • A deletion variant of the alpha2b-adrenoceptor is related to emotional memory in Europeans and Africans.

    Dominique J. F. de Quervain;Iris-Tatjana Kolassa;Verena Ertl;Lamaro Patience Onyut;Lamaro Patience Onyut

  • Resting-state slow wave power, healthy aging and cognitive performance

    Eleni L. Vlahou;Franka Thurm;Iris-Tatjana Kolassa;Winfried Schlee

  • Psychophysiological correlates of face processing in social phobia.

    Iris-Tatjana Kolassa;Wolfgang H.R. Miltner

  • Gains in cognition through combined cognitive and physical training: the role of training dosage and severity of neurocognitive disorder

    Panagiotis D. Bamidis;Patrick Fissler;Sokratis G. Papageorgiou;Vasiliki Zilidou

  • Increased cortisol concentrations in hair of severely traumatized Ugandan individuals with PTSD

    Susann Steudte;Iris-Tatjana Kolassa;Iris-Tatjana Kolassa;Tobias Stalder;Anett Pfeiffer

  • Plasma concentrations of endocannabinoids and related primary fatty acid amides in patients with post-traumatic stress disorder

    Daniela Hauer;Gustav Schelling;Hannah Gola;Patrizia Campolongo

  • Substantial reduction of naïve and regulatory T cells following traumatic stress.

    Annette Sommershof;Hannah Aichinger;Harald Engler;Hannah Adenauer

  • Epigenetic Modification of the Glucocorticoid Receptor Gene Is Linked to Traumatic Memory and Post-Traumatic Stress Disorder Risk in Genocide Survivors

    Vanja Vukojevic;Iris-Tatjana Kolassa;Matthias Fastenrath;Leo Gschwind

  • Novelty interventions to enhance broad cognitive abilities and prevent dementia: synergistic approaches for the facilitation of positive plastic change.

    Patrick Fissler;Olivia Küster;Winfried Schlee;Iris-Tatjana Kolassa

  • Association study of trauma load and SLC6A4 promoter polymorphism in posttraumatic stress disorder: evidence from survivors of the Rwandan genocide.

    Iris-Tatjana Kolassa;Verena Ertl;Cindy Eckart;Franka Glöckner

  • Structural and Functional Neuroplasticity in Relation to Traumatic Stress

    Iris-Tatjana Kolassa;Thomas Elbert

  • How to quantify exposure to traumatic stress? Reliability and predictive validity of measures for cumulative trauma exposure in a post-conflict population

    Sarah Wilker;Anett Pfeiffer;Stephan Kolassa;Daniela Koslowski

  • Structural alterations in lateral prefrontal, parietal and posterior midline regions of men with chronic posttraumatic stress disorder

    Cindy Eckart;Christian Stoppel;Joern Kaufmann;Claus Tempelmann

  • Electrophysiological correlates of threat processing in spider phobics

    Iris-Tatjana Kolassa;Frauke Musial;Alexander Mohr;Ralf H. Trippe

  • Inflammation in adult women with a history of child maltreatment: The involvement of mitochondrial alterations and oxidative stress.

    Christina Boeck;Alexandra Maria Koenig;Katharina Schury;Martha Leonie Geiger

  • The influence of Organized Violence and Terror on Brain and Mind : a Co-Constructive Perspective

    Thomas Elbert;Brigitte Rockstroh;Iris-Tatjana Kolassa;Maggie Schauer

Frequent Co-Authors

Thomas Elbert
Thomas Elbert University of Konstanz
Dominique J.-F. de Quervain
Dominique J.-F. de Quervain University of Basel
Andreas Papassotiropoulos
Andreas Papassotiropoulos University of Basel
Winfried Schlee
Winfried Schlee University of Regensburg
Maggie Schauer
Maggie Schauer University of Konstanz
Wolfgang H. R. Miltner
Wolfgang H. R. Miltner Friedrich Schiller University Jena
Harald Engler
Harald Engler Essen University Hospital
Frank Neuner
Frank Neuner Bielefeld University
Jörg M. Fegert
Jörg M. Fegert University of Ulm
Elisabeth B. Binder
Elisabeth B. Binder Max Planck Society

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Best Scientists Citing Iris-Tatjana Kolassa

Thomas Elbert

Thomas Elbert

University of Konstanz

Publications: 87

Thomas Straube

Thomas Straube

University of Münster

Publications: 43

Kerry J. Ressler

Kerry J. Ressler

Harvard University

Publications: 39

Maggie Schauer

Maggie Schauer

University of Konstanz

Publications: 36

Karestan C. Koenen

Karestan C. Koenen

Harvard University

Publications: 30

Clemens Kirschbaum

Clemens Kirschbaum

TU Dresden

Publications: 28

Wolfgang H. R. Miltner

Wolfgang H. R. Miltner

Friedrich Schiller University Jena

Publications: 27

Panagiotis D. Bamidis

Panagiotis D. Bamidis

Aristotle University of Thessaloniki

Publications: 27

Dominique J.-F. de Quervain

Dominique J.-F. de Quervain

University of Basel

Publications: 24

Tobias Hecker

Tobias Hecker

Bielefeld University

Publications: 23

Elisabeth B. Binder

Elisabeth B. Binder

Max Planck Society

Publications: 21

Murray B. Stein

Murray B. Stein

University of California, San Diego

Publications: 21

Frank Neuner

Frank Neuner

Bielefeld University

Publications: 20

Sandro Galea

Sandro Galea

Washington University in St. Louis

Publications: 19

Tobias Stalder

Tobias Stalder

University of Siegen

Publications: 19

K. Luan Phan

K. Luan Phan

The Ohio State University

Publications: 18

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