Peter Lilliengren

Peter Lilliengren
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Peter verified their affiliation via an institutional email.
Verified
Peter verified their affiliation via an institutional email.
Stockholm University | SU · Department of Psychology

PhD

About

71
Publications
93,166
Reads
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724
Citations
Additional affiliations
January 2017 - June 2022
Ersta Sköndal Bräcke University College
Position
  • Affiliated researcher
January 2015 - December 2016
Stockholm University
Position
  • Professor
February 2003 - October 2010
Stockholm County Council
Position
  • Medical Professional
Education
October 2010 - November 2014
Stockholm University
Field of study
  • PhD programme in psychology
September 2006 - June 2009
Stockholm University
Field of study
  • Psychotherapist programme
January 1997 - January 2002
Stockholm University
Field of study
  • Psychologist programme

Publications

Publications (71)
Article
Full-text available
Experiential dynamic therapy (EDT) is a subgroup of short-term psychodynamic psychotherapy (STPP) that emphasizes patients’ in-session affective processing. To evaluate the efficacy of EDT for psychiatric conditions, we conducted a meta-analysis of randomized controlled trials. Twenty-eight studies published between 1978 and 2014 were included, enc...
Thesis
Full-text available
There are several theoretical notions of how psychoanalytic psychotherapy work, but only limited empirical evidence to support any of them. The overall aim of this thesis was to explore therapeutic action in psychoanalytic psychotherapy from different perspectives (patient, therapist, and observer), using different methodological approaches (qualit...
Article
Full-text available
Different forms of psychotherapy are effective for cluster C personality disorders, but we know less about what in-session processes promote change. Contrasting successful and unsuccessful cases may elucidate processes that facilitate or impede outcome and offer suggestions for clinical practice and future research. In this exploratory outcome–proc...
Article
Full-text available
The objective of this study was to evaluate the clinical- and cost-effectiveness of Intensive Short-Term Dynamic Psychotherapy (ISTDP) for generalized anxiety disorder (GAD). We further aimed to examine if a key clinical process within the ISTDP framework, termed the level of mobilization of unprocessed complex emotions (MUCE), was related to outco...
Article
Intensive Short-Term Dynamic Psychotherapy (ISTDP) can be an effective treatment for complex cases presenting with fragility, repression, character problems and multiple medically unexplained somatic symptoms. However, in such cases, the treatment is not always “short-term,” and the therapist needs to engage in the complicated task of assessing and...
Article
Full-text available
Internet-delivered, therapist-guided, self-help programs are novel ways to deliver psychotherapeutic interventions adapted from established therapy models. Such programs can be easily accessed online and may offer an important treatment option for patients who struggle with barriers to seek-ing out and engaging in face-to-face psychotherapy, includ...
Article
Full-text available
https://lakartidningen.se/klinik-och-vetenskap-1/kommentar/2023/11/psykodynamisk-psykoterapi-bor-starkt-rekommenderas/
Article
Full-text available
Objective Somatic symptom disorder (SSD) is commonly encountered in health care settings. Cognitive-behavioural treatments have been most extensively studied, but they tend to have small effects of temporary duration. Emotional awareness and expression therapy (EAET) is a newly developed treatment for SSD, targeting emotional processing of trauma a...
Article
Full-text available
Background Adolescent major depressive disorder (MDD) is highly prevalent and associated with lifelong adversity. Evidence-based treatments exist, but accessible treatment alternatives are needed. We aimed to compare internet-based psychodynamic therapy (IPDT) with an established evidence-based treatment (internet-based cognitive behavioural therap...
Article
Full-text available
Stress and mental ill-health carry considerable costs for both individuals and organizations. Although interventions targeting compassion and self-compassion have been shown to reduce stress and benefit mental health, related research in organizational settings is limited. We investigated the effects of a 6-week psychological intervention utilizing...
Article
Full-text available
Introduction: Face-to-face therapy is unavailable to many young people with mental health difficulties in the UK. Internet-based treatments are a low-cost, flexible, and accessible option that may be acceptable to young people. This pilot study examined the feasibility, acceptability and effectiveness of an English-language adaptation of internet-b...
Article
Full-text available
Objective Benevolence is an emerging concept in motivation theory and research as well as in on pro-social behavior, which has stimulated increasing interest in studying factors that impair or facilitate benevolence and effects thereof. This exploratory study examines the associations between benevolence, stress, mental health, self-compassion, and...
Article
Full-text available
Background: There is growing evidence that trauma, psychosocial conflict, and difficulties with emotional processing contribute to centralized somatic symptoms. Emotional Awareness and Expression Therapy (EAET) was developed to address these factors and reduce symptoms, and EAET has shown efficacy in face-to-face formats. No trial of an internet-de...
Article
Objective: To investigate the effects of a 6‐week smartphone compassion training intervention on mental health. Method: Fifty‐seven Swedish university students (mean age = 25, SD = 5) reporting high levels of stress were randomized to compassion training (n = 23), mindfulness (n = 19), or waitlist (n = 15). Result: Multilevel models indicated that...
Article
Full-text available
Randomized controlled trials (RCTs) demonstrate efficacy of parent–infant psychotherapy, but its applicability and effectiveness in public health care are less known. The method followed is Naturalistic study evaluating Short‐term Psychodynamic Infant–Parent Interventions at Child Health Centers (SPIPIC) in Stockholm, Sweden. One hundred distressed...
Article
Full-text available
Background: Adolescent depression is a common mental health problem and there is an urgent need for effective and accessible treatments. Internet-based interventions solve many obstacles for seeking and receiving treatment, thus increasing access to effective treatments. Internet-based cognitive behavioural therapy (ICBT) for adolescent depression...
Article
Full-text available
BACKGROUND: Adolescent depression is a common mental health problem and there is an urgent need for effective and accessible treatments. Internet-based interventions solve many obstacles for seeking and receiving treatment, thus increasing access to effective treatments. Internet-based cognitive behavioural therapy (ICBT) for adolescent depression...
Preprint
Full-text available
Background: Adolescent depression is a common mental health problem and there is an urgent need for effective and accessible treatments. Internet-based interventions solve many obstacles for seeking and receiving treatment, thus increasing access to effective treatments. Internet-based cognitive behavioural therapy (ICBT) for adolescent depression...
Article
Full-text available
Background Adolescent depression is one of the largest health issues in the world and there is a pressing need for effective and accessible treatments. Objective This trial examines whether affect-focused internet-based psychodynamic therapy (IPDT) with therapist support is more effective than an internet-based supportive control condition on reduc...
Article
Full-text available
BACKGROUND: Adolescent depression is one of the largest health issues in the world and there is a pressing need for effective and accessible treatments. OBJECTIVE: This trial examines whether affect-focused internet-based psychodynamic therapy (IPDT) with therapist support is more effective than an internet-based supportive control condition on red...
Preprint
Full-text available
Background and Aims: This study investigated the feasibility of an Internet-delivered Emotional Awareness and Expression Therapy (I-EAET) for adult patients with somatic symptom disorder (SSD). Although EAET for SSD has been shown to be effective in both individual and group format using RCTs, no trial of an internet-delivered EAET exists. Therefor...
Article
Full-text available
Objective Both Internet-delivered cognitive behavioural therapy (ICBT) and Internet-delivered psychodynamic psychotherapy (IPDT) have shown promise in the treatment of social anxiety disorder (SAD). However, little is known about client preferences and what predicts treatment outcome. The objective of the present pilot study was to examine preferen...
Article
Full-text available
Objective: To assess the clinical- and cost-effectiveness of Intensive Short-Term Dynamic Psychotherapy (ISTDP) for patients with chronic pain. Method: A sample of 228 pain patients were drawn from a larger naturalistic study of ISTDP. They received an average of 6.1 sessions delivered by 31 therapists. Psychiatric symptoms and interpersonal probl...
Article
In the last decade of his career, Jeremy Safran became increasingly interested in investigating the ways in which attachment representations influence the therapeutic relationship. In this paper, we test such influence in a sample of thirty outpatients who received Brief Relational Therapy by comparing their independently coded pre-treatment Adult...
Article
Full-text available
Objective: To explore therapists' experiences of the therapeutic process in successful cases of psychoanalytic psychotherapy. Method: A two-stage, mixed-method design was used. Sixteen successful cases were drawn from a sample of 92 young adults in psychoanalytic psychotherapy according to Jacobson's criteria for reliable and clinically signific...
Article
Full-text available
Artikel i Psykologtidningen
Article
Full-text available
Background: Alexithymia and emotional awareness may be considered overlapping constructs and both have been shown to be related to psychological and emotional well-being. However, it is not clear how the constructs relate to each other empirically or if they may overlap more or less in different populations. The aim of this review was therefore to...
Article
Full-text available
Social anxiety disorder (SAD) is associated with considerable individual suffering and societal costs. Although there is ample evidence for the efficacy of cognitive behavior therapy, recent studies suggest psychodynamic therapy may also be effective in treating SAD. Furthermore, Internet-based psychodynamic therapy (IPDT) has shown promising resul...
Research
Full-text available
This is a list of all RCTs ever conducted on psychodynamic/psychoanalytic treatments and interventions. The inclusion criteria are the widest possible: the list includes studies of long-term and short-term therapy, the treatment may be in individual, group or other format (Internet-based self-help for example), the condition targeted may be a psych...
Article
This study examined the effects of trial therapy interviews using intensive short-term dynamic psychotherapy with 500 mixed sample, tertiary center patients. Furthermore, we investigated whether the effect of trial therapy was larger for patients who had a major unlocking of the unconscious during the interview compared with those who did not. Outc...
Article
Full-text available
Research has indicated that patients’ in-session experience of previously avoided affects may be important for effective psychotherapy. The aim of this study was to investigate patients’ in-session levels of affect experiencing in relation to their corresponding levels of insight, motivation and inhibitory affects in initial Experiential Dynamic Th...
Article
Full-text available
Artikel i Psykologtidningen som sammanfattar forskningsläget för ISTDP upp till 2015
Book
Det här är den första svenska boken om affektfokuserad psykodynamisk terapi. Våra grundaffekter styr vår uppmärksamhet och förbereder oss för handling. De berättar vad som är viktigt och hjälper oss att kommunicera det till andra. Hur vi hanterar våra affekter beror dock till stor del på vilka relationella erfarenheter vi gjort. En affektfokuserad...
Method
Full-text available
This is the current version of the Patient Attachment To Therapist Rating Scale (PAT-RS). PAT-RS aims at assessing the quality of attachment to therapist from patients’ spontaneous descriptions of the therapist as a person, their experience of the therapeutic process and reactions to attachment related issues in the therapeutic relationship, typica...
Method
Full-text available
This is the current english version of the manual for the Patient Attachment to Therapist Rating Scale (PAT-RS). Make sure to study it carefully before using the PAT-RS rating sheet. Information on the development and an initial evaluation of its psychometric properties can be found in: Lilliengren, P., Werbart, A., Mothander, P. R., Ekström, A., S...
Article
Full-text available
Using a novel approach to assess attachment to therapist from patient narratives (Patient Attachment to Therapist Rating Scale; PAT-RS), we investigated the relationships between secure attachment to therapist, patient-rated alliance, and outcome in a sample of 70 young adults treated with psychoanalytic psychotherapy. A series of linear mixed-effe...
Article
Full-text available
Objective: To report on the development and initial psychometric properties of a new rating scale for patent-therapist attachment. Method: Seventy interviews from the Young Adult Psychotherapy Project (YAPP) were rated. Results: Excellent internal consistency (Cronbach's α > .90) was observed for all four subscales (Security, Deactivation, Hyp...
Article
Full-text available
Introduktion till ISTDP i Riksföreningen Psykoterapicentrums tidskrift "Insikten".
Article
Full-text available
Studying experienced therapists' implicit theorizing may contribute to our understanding of what is helpful and what hinders treatment with particular patient populations. In this study, 16 therapists' views of curative factors, hindering factors, and outcome were explored in 22 interviews conducted at termination of individual psychoanalytic psych...
Article
Full-text available
Introduktion till "Affektfobiterapi" i Svenska Föreningen för Kognitiva och Beteendeinriktade Terapier (SfKBT) tidsskrift "Sokraten".
Article
Full-text available
Artikel i Psykologtidningen.
Article
Full-text available
The patients' view of curative and hindering factors in psychoanalytic psychotherapy was explored, starting from conducting the Private Theories Interview with 22 young adult patients at termination of their therapies. A tentative theoretical model of therapeutic action was constructed using grounded theory methodology. Talking About Oneself, Havin...
Chapter
Full-text available
In this paper ethical and methodological dilemmas when studying private explanatory systems among young adults in discussion groups online are explored. The question whether informed consent should be obtained or not is focused. One case example is presented to illustrate how stories from the Internet can be used to study young adults' private expl...
Thesis
Full-text available
Många psykoterapeuter lånar metoder från andra inriktningar men lite är känt om hur det går till. Uppsatsens syfte var att explorativt undersöka hur kognitiva och beteendeterapeutiska, eller "handlingsorienterade", interventioner kan integreras med psykodynamisk terapi. Arbetet utgår från att all integration måste ta hänsyn till både hur en importe...

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