Our team

At Senz we attach great importance to good cooperation in a multidisciplinary team and employees with expertise in their field.

Staff

We will start in April 2025 with a team consisting of clinical psychologists, (GZ) psychologists, a psychiatrist, a nurse and psychomotor therapists. The team will then continue to grow.

Shiva Thorsell

Clinical Psychologist

Shiva Thorsell is a clinical psychologist with over 25 years of experience in specialized mental health care (GGZ). In addition to her clinical work, she also teaches and supervises postgraduate training for health psychologists.

Shiva is an expert in therapeutic approaches such as Sensorimotor Psychotherapy (SP), Ketamine Assisted Psychotherapy (KAP), Body-Oriented Mentalizing (LMBT), and Acceptance and Commitment Therapy (ACT).

As a co-founder of Senz, alongside Prof. Dr. Rutger Engels and Dr. Karlijn Kindt, Shiva plays a key role on the board, shaping the vision and direction of the organization.

Karlijn Kindt

Clinical Psychologist

Dr. Karlijn Kindt is a clinical psychologist with over 15 years of experience in mental health care (GGZ). In addition to her clinical work, she also teaches and supervises postgraduate training for health psychologists.

Karlijn specializes in therapeutic approaches frameworks such as Eye Movement Desensitization and Reprocessing (EMDR), Emotionally Focused Therapy (EFT), Sensorimotor Psychotherapy (SP), and Ketamine Assisted Psychotherapy (KAP).

As a co-founder of Senz, alongside Prof dr. Rutger Engels and Shiva Thorsell, Karlijn also plays a key role on th board, shaping the vision and direction of the organization.

Jasper Nuninga

Health Psychologist

Dr. Jasper Olivier Nuninga is a health psychologist with extensive experience in specialized mental health care (GGZ). In addition to his clinical work, he also is a researcher at the University Medical Center Groningen, teaching in clinical psychology training programs, and working as a supervisor.

Jasper’s expertise includes Ketamine Assisted Psychotherapy (KAP), Acceptance and Commitment Therapy (ACT), Interpersonal Therapy (IPT), and Eye Movement Desensitization and Reprocessing (EMDR).

Jasper has been involved in the early development of Senz.

Jasper van Oort

Psychiatrist

Jasper van Oort is a psychiatrist with extensive experience in specialized mental healthcare. He did his PhD on a thesis on the brain’s stress response, which was a collaboration between Radboud Umc and the Donders Institute. He has extensive expertise in pharmacotherapy, including the pharmacological aspects of Ketamine-Assisted Psychotherapy (KAP). Additionally, he applies various therapeutic approaches, such as Interpersonal Therapy (IPT) and Mindfulness. Jasper was involved in the early development of Senz.

Rozemarije Schlotter

Operations Manager

Rozemarije Schlotter began her career in psychology with doctoral research on new antidepressants. She later focused on enhancing care quality and support by tackling regional collaboration challenges in the mental health care and social domain.

To broaden her expertise, Rozemarije pursued business studies at Nyenrode and earned multiple NLP certifications. She now serves as operations manager and is a member of the management team.

Yke de Boer

Health Care Psychologist

Yke de Boer is a health care (GZ) psychologist with extensive experience in specialized mental healthcare. She has expertise in applying Acceptance and Commitment Therapy (ACT), Cognitive Behavioral Therapy (CBT), and Mentalization-Based Therapy (MBT). Yke has also worked in (neuro)rehabilitation.

Julia van Alphen

Health Care Psychologist

Julia van Alphen is a health care (GZ) psychologist with over 10 years of experience in mental healthcare (GGZ). She works from a trauma-informed perspective using various therapeutic frameworks, including Eye Movement Desensitization and Reprocessing Therapy (EMDR), Acceptance and Commitment Therapy (ACT), and Cognitive Behavioral Therapy (CBT).

Thomas Brouwers

Health Care Psychologist

Thomas Brouwers is a health care (GZ) psychologist with broad experience in specialized mental healthcare as well as scientific research. His research focused on optimizing trauma treatment for individuals with PTSD.

He is trained in Cognitive Behavioral Therapy (CBT) and Eye Movement Desensitization and Reprocessing Therapy (EMDR). He takes a transdiagnostic approach, integrating elements from CBT, EMDR, ACT, and Mindfulness.

Marsha de Heus

Psychologist

Marsha de Heus is a psychologist with experience in specialized mental healthcare. She has expertise in therapeutic approaches such as Running and Walking Therapy, Cognitive Behavioral Therapy (CBT), Acceptance and Commitment Therapy (ACT), Interpersonal Psychotherapy (IPT), and Mindfulness.

Rutger Engels

Professor

Rutger Engels is a full professor of Developmental Psychopathology at Erasmus University Rotterdam, a board member at Stichting de Verre Bergen, and a co-founder and board member at Senz. His role at Senz focuses on optimizing treatment programs through data collection and collaboration with academic and societal partners.

Rutger plays a role in bridging research and practice to improve mental healthcare and make innovative treatment methods more widely available.

Marleen ter Avest

Psychologist

Marleen ter Avest has extensive experience as a psychologist, mindfulness, and compassion (teacher) trainer, supervisor, and researcher. In 2021, she obtained a PhD from Radboud Umc’s Expertise Center for Mindfulness, focusing on the mechanisms of mindfulness and compassion in individuals with recurrent depression.

Marleen has experience with therapeutic frameworks such as Mindfulness (MBSR/MBCT/MBCT-L), Compassion (MBCL), Acceptance and Commitment Therapy (ACT), and Emotionally Focused Therapy (EFT).

Bart Struijk

Social Psychiatric Nurse

Bart Struijk is a social psychiatric nurse with over 35 years of experience in various fields of mental healthcare. He is an experienced practitioner specializing in identifying the underlying dynamics and life events contributing to mental health problems.

He works from a systemic approach, recognizing that psychological issues often occur within a broader context, where involving system members can be an integral part of treatment.

Liza Heuvels

Psychomotor Therapist

Liza Heuvels is a psychomotor therapist with experience in specialized mental healthcare. She integrates various therapeutic frameworks, including Running Therapy, Mindfulness, PMT (psychomotor therapy), and EMDR. In 2025, she will begin her master’s in psychomotor therapy (PMT).

Saskia Ohlmeier

Nurse in Training to Become a Specialist

Saskia Ohlmeier is a nurse currently completing her Master’s degree to become a mental health care nurse specialist. She has over 10 years of experience in specialized mental healthcare. Saskia specializes in providing integrated medical and nursing care, focusing on lifestyle and the interaction between body and mind.

She employs behavioral and pharmacotherapeutic interventions and has experience with various therapeutic approaches, including ACT, CBT, body-oriented Mentalization-Based Therapy (L-MBT), and components of mindfulness.

Lisette van den Hoorn

Healthcare Administration

Lisette van den Hoorn has completed a degree in healthcare management. After her studies, she started working in the mental health sector and gained extensive experience in optimizing processes. At Senz, she works in healthcare administration in both the front and back office.