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Steinar Lorentzen

Steinar Lorentzen

Steinar Lorentzen publications per year

The chart shows the history of publications by Steinar Lorentzen between 1975 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Steinar Lorentzen published across 51 years, from 1975 to 2025, averaging 2.1 papers a year. Output peaked at 12 publications in 2013. 3 of the 106 publications appeared in the last two years.

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

106 publications in total across all disciplines

View publications per year as a table
Steinar Lorentzen: publications per year, 1975 to 2025
Year Publications
1975 1
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 1
1983 1
1984 0
1985 1
1986 0
1987 0
1988 0
1989 0
1990 2
1991 3
1992 0
1993 0
1994 2
1995 3
1996 3
1997 0
1998 1
1999 1
2000 1
2001 0
2002 4
2003 0
2004 3
2005 1
2006 2
2007 0
2008 3
2009 3
2010 7
2011 10
2012 8
2013 12
2014 4
2015 6
2016 2
2017 3
2018 2
2019 0
2020 1
2021 1
2022 11
2023 0
2024 1
2025 2
Total 106
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Steinar Lorentzen 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 Steinar Lorentzen sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 69 bars. Horizontal axis: publications, 31–40 to 705+. Vertical axis: number of scientists, 0 to 736. Most scientists, 736, have 101–110 publications. The last bar groups every scientist with 705 publications or more. 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
31–40 publications 705+

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

View publications distribution as a table
Number of Psychology scientists by publication count, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
Publications Scientists
31–40 6
41–50 52
51–60 138
61–70 299
71–80 461
81–90 605
91–100 713
101–110 736
111–120 686
121–130 670
131–140 644
141–150 597
151–160 576
161–170 477
171–180 450
181–190 397
191–200 343
201–210 328
211–220 313
221–230 283
231–240 226
241–250 196
251–260 201
261–270 171
271–280 151
281–290 139
291–300 113
301–310 102
311–320 100
321–330 76
331–340 92
341–350 85
351–360 69
361–370 71
371–380 63
381–390 58
391–400 57
401–410 43
411–420 33
421–430 50
431–440 41
441–450 32
451–460 27
461–470 28
471–480 25
481–490 28
491–500 20
501–510 23
511–520 26
521–530 17
531–540 21
541–550 14
551–560 16
561–570 10
571–580 22
581–590 9
591–600 14
601–610 9
611–620 11
621–630 4
631–640 7
641–650 5
651–660 10
661–670 8
671–680 8
681–690 4
691–700 3
701–704 4
705+ 100
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Steinar Lorentzen 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 Steinar Lorentzen sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 58 bars. Horizontal axis: D-Index, 30–31 to 144+. Vertical axis: number of scientists, 0 to 702. Most scientists, 702, have 32–33 D-Index. The last bar groups every scientist with 144 D-Index or more. 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
30–31 D-Index 144+

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

View D-Index distribution as a table
Number of Psychology scientists by D-index, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
D-Index Scientists
30–31 398
32–33 702
34–35 671
36–37 659
38–39 641
40–41 671
42–43 617
44–45 558
46–47 495
48–49 487
50–51 445
52–53 390
54–55 408
56–57 345
58–59 325
60–61 321
62–63 248
64–65 290
66–67 218
68–69 219
70–71 215
72–73 183
74–75 169
76–77 132
78–79 137
80–81 120
82–83 112
84–85 86
86–87 101
88–89 83
90–91 77
92–93 70
94–95 78
96–97 58
98–99 53
100–101 57
102–103 48
104–105 53
106–107 46
108–109 24
110–111 35
112–113 27
114–115 32
116–117 31
118–119 22
120–121 16
122–123 24
124–125 18
126–127 11
128–129 19
130–131 10
132–133 16
134–135 10
136–137 12
138–139 8
140–141 5
142–143 12
144+ 98
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Overview

Steinar Lorentzen is affiliated with the University of Oslo in Norway and works primarily within the field of Psychology, with a focus on Clinical Psychology and Applied Psychology. Their research extensively explores psychotherapy techniques and applications, personality disorders and psychopathology, as well as psychological testing and assessment.

The scientist's recent scholarly output includes several publications spanning the early 2020s to the near future. Notable papers authored by Steinar Lorentzen include:

  • Focused group analytic psychotherapy: An integration of clinical experience and research (2022, Journal of Clinical Psychology)
  • Short-term focused group-analytic psychotherapy (SFGAP): An integrative approach to change based on research (2020, Group Analysis)

In addition to their solo work, Lorentzen has frequently collaborated with other researchers. Regular co-authors include Geir Pedersen, Elfrida Hartveit Kvarstein, Theresa Wilberg, Espen Jan Folmo, and Gary M. Burlingame.

Their body of research is published across several venues, with repeated contributions to:

  • Group Analysis
  • Journal of Clinical Psychology
  • Group Dynamics Theory Research and Practice
  • PsycTESTS Dataset
  • European Journal of Surgical Oncology

The topics covered in their work extend beyond psychotherapy techniques and personality disorders to include transactional analysis in psychotherapy, esophageal and gastrointestinal pathology, research on esophageal cancer treatment, and nutrition and health in aging.

  • Psychotherapy Techniques and Applications
  • Personality Disorders and Psychopathology
  • Transactional Analysis in Psychotherapy
  • Psychological Testing and Assessment
  • Esophageal and GI Pathology
  • Esophageal Cancer Research and Treatment
  • Nutrition and Health in Aging

These research foci correspond with publication records that include interdisciplinary contributions intersecting clinical psychological approaches and surgical oncology contexts, demonstrating a breadth of interest spanning mental health and physical health domains.

Best Publications

  • Childhood Trauma Is Associated With Severe Clinical Characteristics of Bipolar Disorders

    Bruno Etain;Monica Aas;Ole A. Andreassen;Steinar Lorentzen

  • Similar immune profile in bipolar disorder and schizophrenia: selective increase in soluble tumor necrosis factor receptor I and von Willebrand factor.

    Sigrun Hope;Ingrid Melle;Pål Aukrust;Nils Eiel Steen

  • High prevalence of childhood trauma in patients with schizophrenia spectrum and affective disorder

    Sara Larsson;Ole A. Andreassen;Ole A. Andreassen;Monica Aas;Jan I. Røssberg;Jan I. Røssberg

  • Interleukin 1 receptor antagonist and soluble tumor necrosis factor receptor 1 are associated with general severity and psychotic symptoms in schizophrenia and bipolar disorder.

    Sigrun Hope;Thor Ueland;Thor Ueland;Nils Eiel Steen;Nils Eiel Steen;Ingrid Dieset;Ingrid Dieset

  • A genome-wide association study of bipolar disorder in Norwegian individuals, followed by replication in Icelandic sample.

    Srdjan Djurovic;Omar Gustafsson;Morten Mattingsdal;Lavinia Athanasiu;Lavinia Athanasiu

  • Is cognitive impairment following early life stress in severe mental disorders based on specific or general cognitive functioning

    Monica Aas;Nils E. Steen;Ingrid Agartz;Sofie R. Aminoff;Sofie R. Aminoff

  • BDNF val66met modulates the association between childhood trauma, cognitive and brain abnormalities in psychoses

    Monica Aas;Unn K. Haukvik;Srdjan Djurovic;Srdjan Djurovic;Ørjan Bergmann

  • Comparison of short- and long-term dynamic group psychotherapy: randomised clinical trial

    Steinar Lorentzen;Torleif Ruud;Anette Fjeldstad;Per Høglend

  • Serotonin Transporter Gene Polymorphism, Childhood Trauma, and Cognition in Patients With Psychotic Disorders

    Monica Aas;Srdjan Djurovic;Srdjan Djurovic;Lavinia Athanasiu;Nils Eiel Steen

  • Patterns of childhood adverse events are associated with clinical characteristics of bipolar disorder

    Sara Larsson;Monica Aas;Ole Klungsøyr;Ingrid Agartz

  • The importance of ward atmosphere in inpatient treatment of schizophrenia on short-term units.

    Ingrid Melle;Svein Friis;Edvard Hauff;Thor Kristian Island

  • Therapeutic alliance, cohesion and outcome in a long-term analytic group. A preliminary study.

    Steinar Lorentzen;Harold C. Sexton;Per Høglend

  • Neurocognitive functioning and suicidality in schizophrenia spectrum disorders.

    Elizabeth A. Barrett;Kjetil Sundet;Carmen Simonsen;Carmen Simonsen;Ingrid Agartz

  • Characteristics of Psychiatric Inpatients Who Experienced Restraint and Those Who Did Not: A Case-Control Study

    Maria Knutzen;Nina H. Mjosund;Gunnar Eidhammer;Steinar Lorentzen

  • Modeling group process constructs at three stages in group psychotherapy

    Jan V Bakali;Scott A Baldwin;Steinar Lorentzen

  • Increased systemic cortisol metabolism in patients with schizophrenia and bipolar disorder: a mechanism for increased stress vulnerability?

    Nils Eiel Steen;Paal Methlie;Steinar Lorentzen;Sigrun Hope

  • Change during and after long-term analytic group psychotherapy

    Steinar Lorentzen;Kjell Petter Bøgwald;Per Høglend

  • Childhood Trauma and Minimization/Denial in People with and without a Severe Mental Disorder.

    Chelsea Church;Ole A. Andreassen;Steinar Lorentzen;Ingrid Melle

  • Mechanical and pharmacological restraints in acute psychiatric wards--why and how are they used?

    Maria Knutzen;Stål Bjørkly;Stål Bjørkly;Gunnar Eidhammer;Gunnar Eidhammer;Steinar Lorentzen;Steinar Lorentzen

  • Predictors of change during long-term analytic group psychotherapy.

    Steinar Lorentzen;Per Høglend

Frequent Co-Authors

Ingrid Melle
Ingrid Melle University of Oslo
Per Høglend
Per Høglend University of Oslo
Srdjan Djurovic
Srdjan Djurovic Oslo University Hospital
Monica Aas
Monica Aas King's College London
Kjetil Sundet
Kjetil Sundet University of Oslo
Theresa Wilberg
Theresa Wilberg Oslo University Hospital
Per Vaglum
Per Vaglum University of Oslo
Egil W. Martinsen
Egil W. Martinsen University of Oslo
Gunnar Morken
Gunnar Morken Norwegian University of Science and Technology
Marion Leboyer
Marion Leboyer Paris-Est Créteil University

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