
Supervisors for trauma therapy
Supervisors
On this page we introduce you to the supervisors.
Supervision is intended to support professionals at different levels of experience: helping beginners develop confidence, structure and practical skills ("use it or lose it") as well as
to offer experienced therapists space for critical questioning, professional development and reflection on complex processes.
This also includes interdisciplinary case discussions.

Dr. Kerstin Stellermann-Strehlow
Child and adolescent psychiatrist and psychotherapist
Owner of KST Trauma Support
In 2023, she founded KST-Traumahilfe (KST Trauma Support). Since 2003, she has worked as a lecturer nationally and internationally, drawing on her many years of clinical experience in outpatient and inpatient care. She has been a supervisor in trauma therapy and child psychiatry since 2008, and in EMDR for children and adolescents since 2011.
Supervision of:
Trauma therapy
stressor-based approach
Child and adolescent psychotherapy (TP)
Child and adolescent psychiatry
EMDR KJ
Child protection
Transcultural work
Concepts (outpatient, inpatient)

Andrea Berger
Child and adolescent psychotherapist in private practice, Herten and AfkV
She is a certified social worker and child and adolescent psychotherapist (CBT) with her own practice in Herten. Her treatment focus is on trauma-related disorders. She heads the outpatient clinic of the Training Institute for Clinical Behavioral Therapy Gelsenkirchen (AFKV), is a lecturer, supervisor and experiential learning facilitator at various training institutes, and is also an EMDR child and adolescent trainer.
Supervision of:
Trauma therapy
Child and adolescent psychotherapy
Behavioral therapy
EMDR KJ

Dr. Nicole Szesny-Mahlau
Adult psychotherapist
private practice, Munich
Founder of Trauma.help
Extensive experience as an adult psychotherapist, training in psychotraumatology and behavioral therapy.
Extensive experience working with adults with complex trauma and dissociation.
Co-founder of Trauma.help - German Trauma Competence Network eV
Supervision of:
Adult psychotherapy
Behavioral therapy
Trauma therapy
tf-KVT
dissociation

Sabine Prüser
Child and adolescent psychotherapist
own practice, Cologne
Licensed child and adolescent psychotherapist, EMDR therapist and supervisor with many years of experience in trauma therapy and supporting children, adolescents and families. Music therapist.
Supervision of:
Trauma therapy
Child and adolescent psychotherapy
Music therapy
Behavioral therapy.
EMDR KJ

Diana Steen
Lecturer/Trauma Pedagogy
Trauma Studio
For over 25 years, Diana Steen has worked with children and adolescents in psychosocial settings. After studying social work, she completed further training in systemic therapy, trauma-informed pedagogy, IBT (Individualized Behavior Therapy), and trauma-sensitive play and attachment therapy. Today, she is one of two managing directors of the Trauma Studio.
Supervision of:
Systemic trauma counseling
Trauma pedagogy and trauma-sensitive support
interdisciplinary case consultation
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Dr. Thorsten Sukale
Child and adolescent psychotherapist
own practice, Weißenhorn
Working in private practice, with many years of experience in inpatient care at the University Hospital of Ulm. Music therapist.
Supervision of:
Trauma therapy
Child and adolescent psychotherapy
Inpatient therapy in child and adolescent psychiatry
Behavioral therapy
Music therapy
tf-KVT
EMDR KJ
Transcultural work

Jutta Unger
Child and adolescent psychotherapist
own practice, Damme
Decades of experience as a child and adolescent psychotherapist, EMDR supervisor and facilitator, and trauma therapist. Training in psychotraumatology, behavioral therapy, and interdisciplinary trauma therapy work with children, adolescents, and families, as well as dance therapy.
Supervision of:
Trauma therapy
Child and adolescent psychotherapy
Behavioral therapy
EMDR KJ
Systemic

Vanessa Kumfert
Child and adolescent psychotherapist
private practice, Münster
Certified special education teacher, licensed child and adolescent psychotherapist, EMDR therapist and supervisor with many years of experience in behavior therapy, trauma therapy and the support of children, adolescents and families.
Supervision of:
Trauma therapy
Child and adolescent psychotherapy
Behavioral therapy
EMDR KJ
Andrea Dixius
Child and adolescent psychotherapist
Head psychologist, Sonneberg Clinic, Saarbrücken
Head psychologist at Sonnenberg Child and Adolescent Psychotherapy Clinic, Saarbrücken, child and adolescent psychotherapist and DBT-A trainer, developer of START and START Kids. Supervisor with many years of experience in outpatient and inpatient trauma therapy and supporting children, adolescents and families.
Supervision of:
Trauma therapy
Child and adolescent psychotherapy
Inpatient therapy for child and adolescent psychiatry
DBT-A
START, START KIDS
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Janek Roisch
Child and adolescent psychotherapist
private practice, Lüneburg/Weinberg Institute
Sonderpädagoge (M.E.) und tiefenpsychologisch fundierter Kinder- und Jugendlichenpsychotherapeut mit langjähriger Erfahrung in Jugendhilfe, Sozialpsychiatrie und traumatherapeutischer Arbeit. Seine Schwerpunkte liegen in traumabezogener Spieltherapie, EMDR, PITT-Kid, bindungs- und systemorientierter Arbeit sowie interdisziplinärer Fallberatung und Supervision. Seit 2025 leitet er gemeinsam mit Julia Häcker das Weinberg Institut
Supervision of:
(Trauma-related) play therapy
interdisciplinary case consultation
