Case study group with:
Jonathan Entis and Mikkel Reher-Langberg (discussant)

2023: September 7, October 12*, November 2, December 7.
15.00-17.30 CET – 9.00-11.30 EST

A new case study group format

For their new case study group, Jonathan Entis and Mikkel Reher-Langberg will be collaborating around a new concept inspired by the artist talk format. Each monthly session features a 45-70 minute video presentation of a single case from Jonathan’s practice. During this presentation, Mikkel’s role will be that of a discussant, drawing out the major themes and technical points of the case.

Together, the two will engage in a running discussion of key aspects of the work presented. In this way, participants stand to gain, not only technical knowledge, but also a deeper understanding of the fundamental principles and processes guiding the work. The purpose of this is to allow participants to better integrate the techniques presented into their own clinical practice.

Examples of key concepts to be discussed are: Keeping a tight focus on all aspects of the resistance, extended and frequent use of the head-on collision, mobilizing the patient’s full will in the service of the therapeutic task, the balance of focus on unconscious feelings and resistance, one-person vs. two-person psychologies, the role of pressure as an aspect of head-on collisions, the role of dynamic interpretations in ISTDP, how to manage projections, when and how to address tactical defenses, and others.

The last 30 minutes of each session will feature group discussion, allowing the audience to ask questions, share their reflections, and deepen their learning.

Meeting format

9.00 – 9.55 EST: Case presentation and running discussion
9.55 – 10.05 EST: Break
10.05 – 10.50 EST: Case presentation and running discussion
10.50 – 11-00 EST: Break
11.00 – 11.30 EST: Group discussion

Practical information:

Time: 2023: September 7, October 12*, November 2, December 7. All meetings 15.00-17.30 CET – 9.00-11.30 EST
*The October meeting overlaps with Allan Abbass’ Halifax immersion. For those who want to attend both, we will be offering a recorded re-run of that meeting, on the following Thursday, October 19th.

Place: Online via zoom (link will be sent out a day in advance).

Qualifications: Since the presentations contain personally sensitive material, the seminar is for mental health professionals only, and requires a vow of confidentiality.

Registration: Contact Mikkel Reher-Langberg via:

Price and payment: $300 total for all four sessions. Early-bird price until June 15th: $270 total. Payment is made through paypal. You will receive payment instructions upon registration.

Case material: The case material used for this seminar was also used for Jonathan Entis’ in-person seminars in Sweden and Norway in 2023, but has otherwise not been presented before.


Questions: Feel free to contact us with any requests or questions through or by phone: +45 20450167.

About Jonathan Entis

Jonathan Entis, Ph.D., is a licensed psychologist in private practice in Cambridge, Massachusetts. He is licensed in both Massachusetts and New York. He is on the faculty of Harvard Medical School, where for the past four years he has taught and supervised in ISTDP. He is an IEDTA-certified teacher in ISTDP and has presented both nationally and internationally. He has co-lead  seminars on working with syntonic defenses in Davanloo’s ISTDP with John Rathauser, PhD, and working with Resistance against Emotional Closeness with Patrica Coughlin, PhD. Jonathan leads two Post-Core Training Groups in ISTDP based in Sweden and Norway, multiple international monthly online training groups, and also co-leads an advanced Core Training in Amsterdam with John Rathauser. He is also a co-author with John Rathauser and Mikkel Reher-Langberg on the upcoming book, Fundamentals of Davanloo’s Intensive Short-Term Dynamic Psychotherapy, Volume I. You can contact him at

About Mikkel Reher-Langberg

Mikkel Reher-Langberg is an authorized psychologist, practicing ISTDP in Copenhagen’s Emotion Center. Since 2019, he has been president of the Danish Society for ISTDP, and organizer of the Scandinavian ISTDP-Academy, as well as many other seminars in ISTDP. Reher-Langberg’s main influence in ISTDP has been John Rathauser, with whom he has has studied since 2018. He is the author of the book “Faces of the Freudian ‘I'”, about the notion of the ego in Sigmund Freud’s metapsychology. He is currently working on two books on the basic principles and dynamics of ISTDP: “Fundamentals of Davanloo’s ISTDP Volume 2”, as well as “Fundamentals of Davanloo’s ISTDP Volume 1”, the latter in collaboration with John Rathauser and Jonathan Entis. You can contact him at