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Psychology
Denmark
2026

D-Index & Metrics

Psychology

D-Index
74
Citations
20413
World Ranking
1887
National Ranking
5

Research.com Recognitions

  • 2026 - Research.com Psychology in Denmark Leader Award
  • 2025 - Research.com Psychology in Denmark Leader Award

Overview

Erik Simonsen is affiliated with the University of Copenhagen in Denmark and has a research focus centered on psychology and medicine, particularly within clinical psychology and psychiatry and mental health.

Simonsen's work engages primarily with topics related to personality disorders and psychopathology, mental health and psychiatry, schizophrenia research and treatment, psychotherapy techniques and applications, child and adolescent psychosocial and emotional development, bipolar disorder and treatment, and psychosomatic disorders and their treatments.

The scientist has contributed to several notable papers, including:

  • Psychological therapies for people with borderline personality disorder, 2020, Cochrane Database of Systematic Reviews
  • Development and initial evaluation of the ICD-11 personality disorder severity scale: PDS-ICD-11, 2021, Personality and Mental Health
  • Psychotherapies for borderline personality disorder: a focused systematic review and meta-analysis, 2022, The British Journal of Psychiatry
  • Pharmacological interventions for people with borderline personality disorder, 2022, Cochrane Database of Systematic Reviews
  • Traumatic experiences, ICD-11 PTSD, ICD-11 complex PTSD, and the overlap with ICD-10 diagnoses, 2020, Acta Psychiatrica Scandinavica

Frequent co-authors collaborating with Simonsen include Ole Jakob Storebø, Mickey Kongerslev, Mie Sedoc Jørgensen, Stephen F. Austin, and Finland.

The scientist's research is predominantly published in venues such as the Scandinavian Journal of Medicine and Science in Sports, Nordic Journal of Psychiatry, Personality Disorders Theory Research and Treatment, BMJ Open, and Cochrane Database of Systematic Reviews.

Best Publications

  • Alternative dimensional models of personality disorder: finding a common ground.

    Thomas A. Widiger;Erik Simonsen

  • Neural inhibition during maximal eccentric and concentric quadriceps contraction: effects of resistance training

    P. Aagaard;E. B. Simonsen;J. L. Andersen;S. P. Magnusson

  • Reducing the duration of untreated first-episode psychosis: effects on clinical presentation.

    Ingrid Melle;Tor K. Larsen;Ulrik Haahr;Svein Friis

  • Methylphenidate for children and adolescents with attention deficit hyperactivity disorder (ADHD)

    Ole Jakob Storebø;Erica Ramstad;Helle B Krogh;Trine Danvad Nilausen

  • Isokinetic hamstring/quadriceps strength ratio: influence from joint angular velocity, gravity correction and contraction mode.

    P Aagaard;E B Simonsen;M Trolle;J Bangsbo

  • Mechanical and physiological responses to stretching with and without preisometric contraction in human skeletal muscle

    S.Peter Magnusson;Erik B. Simonsen;Per Aagaard;Poul Dyhre-Poulsen

  • Psychological therapies for people with borderline personality disorder

    Unknown

  • Long-term follow-up of the TIPS early detection in psychosis study: effects on 10-year outcome.

    Wenche ten Velden Hegelstad;Tor K. Larsen;Bjørn Auestad;Julie Evensen

  • Methylphenidate for attention deficit hyperactivity disorder (ADHD) in children and adolescents – assessment of adverse events in non‐randomised studies

    Ole Jakob Storebø;Nadia Pedersen;Erica Ramstad;Maja Lærke Kielsholm

  • Psychopathy : antisocial, criminal, and violent behavior

    Theodore Millon;Erik Simonsen;Morten Birket-Smith;Roger D. Davis

  • Early detection strategies for untreated first-episode psychosis

    Jan Olav Johannessen;Thomas H McGlashan;Tor Ketil Larsen;Marthe Horneland

  • Early detection and intervention in first-episode schizophrenia: a critical review

    T. K. Larsen;S. Friis;U. Haahr;I. Joa

  • Personality disorder research agenda for the DSM-V

    Thomas A. Widiger;Erik Simonsen;Robert Krueger;W. John Livesley

  • Early Detection of the First Episode of Schizophrenia and Suicidal Behavior

    Ingrid Melle;Jan Olav Johannesen;Svein Friis;Ulrik Haahr

  • The Key to Reducing Duration of Untreated First Psychosis: Information Campaigns

    Inge Joa;Jan Olav Johannessen;Bjørn Auestad;Svein Friis

  • Neurocognitive Dysfunction in First-Episode Psychosis: Correlates With Symptoms, Premorbid Adjustment, and Duration of Untreated Psychosis

    Bjørn Rishovd Rund;Ingrid Melle;Svein Friis;Tor K. Larsen

  • Historical conceptions of psychopathy in the United States and Europe.

    Theodore Millon;Erik Simonsen;Morten Birket-Smith

  • Prevention of negative symptom psychopathologies in first-episode schizophrenia: two-year effects of reducing the duration of untreated psychosis.

    Ingrid Melle;Tor K. Larsen;Ulrik Haahr;Svein Friis

  • Risk factors for violence among patients with schizophrenia

    Sune Bo;Ahmad Abu-Akel;Mickey Kongerslev;Ulrik Helt Haahr

  • Methylphenidate for attention-deficit/hyperactivity disorder in children and adolescents: Cochrane systematic review with meta-analyses and trial sequential analyses of randomised clinical trials

    Ole Jakob Storebø;Ole Jakob Storebø;Helle B Krogh;Erica Ramstad;Carlos R Moreira-Maia

  • Shortened Duration of Untreated First Episode of Psychosis: Changes in Patient Characteristics at Treatment

    Tor K. Larsen;Thomas H. McGlashan;Jan Olav Johannessen;Svein Friis

  • Contemporary directions in psychopathology : scientific foundations of the DSM-V and ICD-11

    Theodore Millon;Robert F. Krueger;Erik Simonsen

Frequent Co-Authors

Tor K. Larsen
Tor K. Larsen University of Bergen
Ingrid Melle
Ingrid Melle University of Oslo
Bjørn Rishovd Rund
Bjørn Rishovd Rund Vestre Viken Hospital Trust
Per Vaglum
Per Vaglum University of Oslo
Inge Joa
Inge Joa Stavanger University Hospital
Bo Bach
Bo Bach University of Copenhagen
Kjetil Sundet
Kjetil Sundet University of Oslo
Ask Elklit
Ask Elklit University of Southern Denmark
Erik Lykke Mortensen
Erik Lykke Mortensen University of Copenhagen
Theodore Millon
Theodore Millon University of Miami

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