Circle of Security Trainers

Handpicked Experts for Circle of Security Parenting DVD Trainings
Meet Our Global Team of Experienced COSP Trainers

Our Contracted Trainers have spent numerous hours working alongside Glen Cooper, Kent Hoffman, and Bert Powell. They have been utilizing the Circle of Security protocol for years within their own clinical practice, and have proven presentation abilities. They have each been handpicked to become trainers for the Circle of Security Parenting DVD trainings. The listings below are alphabetical by last name.

Michelle Ball
New Zealand

Michelle has worked in the area of infant, child and family mental health for the past 25 years. She has a BSW and is a registered Child and Adolescent Psychotherapist. Michelle has worked in various settings as a clinician, project manager, team manager and services leader.

Michelle has been working with Circle of Security since 2008 as the New Zealand sponsor for Circle of Security Parenting trainings. Michelle is certified in the advanced Circle of Security assessment and treatment protocol and an accredited COSP Trainer, Fidelity Coach and Facilitator. Michelle actively supports the fidelity coaching model and use of pre and post evaluation tools to encourage further research using Circle of Security interventions within a New Zealand population.


Through her private practice, Attune Consulting, Michelle provides Circle of Security training and presentations, consultation, support and supervision to a range of organisations and professionals.  Michelle is particularly interested in how relational approaches can be used to support change across multiple domains for parent - child relationships, clinician - client relationships, and employee - employer relationships.

Claud Bisaillon

Claud is a clinical psychologist and professor in the department of psychology at the University of Sherbrooke in Montreal, Canada. She is dedicated to the care of children and adolescents and was trained in the COS-Intensive model in 2008 when she was working in a youth protection facility. She participated in the pilot testing of the COSP program and supervised the French translation of COSP so that it can benefit French speaking populations around the world.

Claud is both a clinician and a researcher; in her position as professor she has mentored both undergraduate and graduate students, introducing many of them to attachment science using the Circle as a learning tool. Her clinical interests are attachment-based parent-child interventions, particularly those, like COS, designed to enhance parental reflective functioning. Her research projects are mainly centered on examining the effects of the Circle of Security Parenting program with different populations, including indigenous communities. For example, she works closely with a team centered in the Kahnawake Mohawk community near Montreal who have used COSP as one tool to address a history of oppression and related trauma. She is also interested in examining the effects of the COSP training on professionals.

When she is not working, Claud enjoys outdoor activities, whether it is hiking, jogging, cross-country skiing or tennis...and traveling around the world.

Claud est psychologue clinicienne et professeure au département de psychologie de l'université de Sherbrooke, au sein du cheminement Intervention en enfance et adolescence. Elle se consacre au travail clinique auprès des enfants et des adolescents et s'est formée au modèle intensif Cercle de sécurité en 2008 alors qu'elle travaillait dans des services de protection de la jeunesse. Elle a participé aux pilotes du programme Cercle de sécurité parental et a supervisé sa traduction en français afin que les francophones du monde puissent en bénéficier.

Claud est à la fois clinicienne et chercheure : à titre de professeure elle a supervisé des étudiants de baccalauréat et aux études supérieurs, en initiant ceux-ci à l'attachement à l'aide du modèle COS. Ses intérêts cliniques portent sur les interventions parent-enfant basées sur l'attachement et plus particulièrement celles qui, comme COS, ciblent le développement de la fonction réflexive parentale. Ses intérêts de recherche visent pour la plupart à examiner les effets du programme COSP auprès de différentes populations, des communautés autochtones. Elle travaille étroitement avec une équipe de la communauté Mohawk de Kahnawake près de Montréal qui utilise COSP afin de contribuer à la guérison des traumas historiques. Elle travaille à examiner les effets de la formation COSP sur les professionnels.

En dehors du travail, Claud aime voyager et s'adonner à des activités de plein-air, que ce soit la randonnée, le jogging, le ski de fond ou le tennis.

Neil W. Boris

Neil is a graduate of Grinnell College and the Tufts University School of Medicine. After completing his residency training at Brown University in pediatrics, adult and child psychiatry, Neil embarked on a research career focusing on the social and emotional development of high-risk children—especially those under five years of age. His research has ranged from studying early intervention programs serving high-risk families in the U.S. to capturing the impact of community-based programs for orphans in Rwanda and Malawi. He has also always been a clinician and teacher, working in a variety of clinical settings from multi-disciplinary programs focused on young maltreated children to hospital-based practice with children with life-threatening illnesses or community-based programs serving substance-abusing parents and their young children. Neil has been a tenured Full Professor at Tulane University (in both public health and medicine) where his passion for teaching and training was awarded with a Teaching Scholar Award. He's held several leadership positions, including being an associate editor of the Infant Mental Health Journal, serving on the editorial board of the Journal of the American Academy of Child and Adolescent Psychiatry to being on the board of directors of the World Association of Infant Mental Health.

Neil lives in a lakeside home in Orlando, Florida with his wife, three children, two fish, a hamster and a cat.

Ida Brandtzæg and Stig Torsteinson

Ida Brandtzæg and Stig Torsteinson are our contracted Circle of Security Parenting trainers in the Scandinavian countries. They attended their first Circle of Security training in Spokane in 2007. Both are certified COS supervisors and serve as a point of contact in the Scandinavian countries.

They graduated from the University of Oslo with degrees in Psychology and have dedicated their teaching and clinical careers to infant psychology.  They worked in the infant section at Nic Waals Institute in Oslo for many years. Nic Waals Institute and Aline Infant Center are two pioneer institutions enhancing the importance of psychological health in infants. Brandtzæg is one of two coordinators of the infant education at The Center for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP).

Brandtzæg and Torsteinson are also dedicated to forensic work in child custody and child welfare cases. They have been central in work on behalf of The Ministry of Children, Equality and Social Inclusion in the Norwegian Courts Administration. They developed brochures presenting psychological information on how to make good arrangements for children of divorce, and information booklet and DVD on how to handle domestic violence cases. 

They have written the first Norwegian clinical book relating attachment psychology and an interdisciplinary model to treatment, and have published other works detailing attachment psychology and the Circle of Security. Ida and Stig get wonderful reviews for their COSP™ seminars in Norway and Sweden. They keep a busy training schedule on top of their very busy practices, training multiple times per year on behalf of Circle of Security.

Joe Coyne

Joe Coyne has worked for 20 years in the area of child and family psychology. He is particularly interested in the developmental processes involved in healthy outcomes and the impacts of parenting and life events on personal trajectories. In recent years he has been exploring the benefits of incorporating attachment theory and research into contemporary treatment approaches for parents, children and adults. He is an accredited therapist and supervisor for the Circle of Security Intervention.  In Australia he is an Endorsed Clinical Psychologist and Endorsed Educational and Developmental Psychologist.  In the past he has worked in Health services delivering family and parenting interventions, and supervising clinical staff, and prior to that in a trauma focused family service.  Since 2010 he has been on the staff of QUT and currently coordinates the Master of Psychology (Educational and Developmental). 

Carlos Guerrero
Carlos Guerrero has a degree in general medicine from the Pontificia Universidad Javeriana, (Bogotá, Colombia), and after his migration to the USA obtained a Master in Social Work from the California State University East Bay. Carlos is Alumni of the Harris Early Childhood Mental Health Training Program in Oakland California and the Child Trauma Training Institute Training in San Francisco California.  In 2006, he completed the 10 days intensive training of the Circle of Security program and since 2009, he has been applying COS approach to his work with Spanish-speaking families. Carlos is a Registered COS Parenting Facilitator, and assisted in the development of the DVD and manual of COSP™ in Spanish.

During his time in Colombia, he concentrated his work in providing support and mental health services to homeless and runaway children and youth living on the streets of Bogotá City. After migrating to the USA, he resumed his clinical work as an outpatient family therapist in community mental health, providing treatment to high-risk families in the San Francisco Bay Area. Currently, Carlos works as a Parent-Child Psychotherapist with the Early Childhood Mental Health Program at Children’s Hospital and Research Center Oakland. He provides home-based intensive individual and dyadic mental health services to diverse inner-city populations; particularly young children and monolingual Spanish-speaking immigrant families from Latin America.

Deborah Harris

Deborah received her Master’s degree from UC Berkeley. She completed graduate and post-graduate internships at the Infant-Parent Program, founded by Selma Fraiberg, at the University of California, Department of Psychiatry and with the Family Therapy program at the Veterans Hospital in San Francisco. In addition to her work in California, Deborah has focused on diverse and rural populations in New Mexico, particularly with young children who have experienced trauma.

Deborah is passionate about the Circle of Security and is certified in the advanced Circle of Security assessment and treatment protocol and as a COS DVD Parenting Facilitator and Trainer. She provides statewide consultation to providers using the COS DVD in a variety of settings including; home visiting, early childhood education, therapeutic parenting groups, child protective service, Native American tribal settings, and more. Deborah is a graduate of the Zero To Three Leadership Development Initiative and belongs to the Zero To Three Graduate Academy.

Deborah is the director of the New Mexico Infant Team Project working with young children in protective custody, which is a long time interest and focus of her work. She teaches advanced clinical courses in infant and early childhood mental health and  provides training and reflective supervision for agencies and individual practitioners. Deborah is endorsed by the New Mexico Association for Infant Mental Health as a Level IV Infant Mental Health Mentor and Practice Leader.

Anna Huber

Dr Anna Huber is a psychologist, infant and early childhood mental health practitioner, and researcher with long experience in educational, developmental, community and private practice psychology contexts.

From 2005-2012, she led the development of the Centre for Early Life Matters at Marymead Child Family Centre in Canberra, a relationally-focused infant and early childhood mental health service for families with young children. She is now working in a private practice focused on relationship based work with families with infants and young children.

Anna completed her PhD in 2016 researching the effectiveness of the Circle of Security Intensive Intervention with young children and their families. This research has had international impact. She continues to be actively involved in real world research and evaluation efforts to build better evidence from practice, working with Macquarie University Centre for Emotional Health. She also provides supervision and consultation to practitioners and managers working in community based child and family programs in Australia and New Zealand.

Anna is on the board of the World Association for Infant Mental Health, representing practitioner organisations around the world working on the ground with young children and their families.

Following the lead of Caroline Zanetti in Perth, Anna pioneered the use of Circle of Security interventions in eastern Australia from 2006, leading a Canberra team in the use of the intensive intervention and then, after hosting the first COSP training in Australia in 2010, also working with COSP. She continues to regularly use the COS interventions in her clinical work with families.

Anna has been an accredited COS Intensive provider since 2007, a Registered COSP Facilitator since 2010, a COS supervisor since 2008 and a trainer of COS supervisors since 2015.

Megumi Kitagawa

Megumi is a Professor of Faculty of Letters at Konan University, a Ph.D. of Education (Kyoto University) and a clinical psychologist. She is a reliable coder of AAI and has worked on research of attachment, including developing a projective method of assessing attachment. She has over 20 years of clinical experience in psychotherapy for children and adults at mental clinics and school counseling centers. While becoming more interested in applying attachment theory and research of child-parent relationships into clinical practice, she attended the 10-day Circle of Security Intensive program in 2007.  In 2008, working with Japanese families, she conducted the first Circle of Security Intervention program in Japan, with supervision by Bert Powell. She continues to work with Japanese families. She is a certified Circle of Security Parenting (COSP™) program facilitator, and she and her colleague translated the COSP™ DVD and manual into Japanese. She has also written an article about helping caregivers by conducting Circle of Security programs (Kitagawa, 2012).

甲南大学文学部教授。京都大学大学院博士(教育学)。臨床心理士。AAI評定資格を取得し、アタッチメント研究、特にアタッチメントの投影的測定方 法開発に取り組んできた。また、20年以上の臨床経験をもち、精神科クリニック、学生相談などの場で、大人や子どもへの心理療法に携わってきた。近年、ア タッチメント理論や研究を実践に応用すること、特に親子関係支援に関心をもつようになった。2007年にCOSプログラムの訓練を受け、2008年以降、 Bert Powellによるスーパービジョンを受けながら、日本で初めて日本の親子にCOSプログラムを実施してきた。COSPプログラムの実施資格もあり、 COSP™のDVDとマニュアルの日本語版を共訳した。主な著書:「養育者支援-サークル・オブ・セキュリティ・プログラム の実践」(『アタッチメントの実践と応用』数井みゆき(編)誠信書房、2012年 pp.23-43. )

Camelia Maianu

Camelia Maianu has a Master of Science in Developmental Psychology from the University of Utah and 16 years of college teaching experience.  She is currently Associate Professor of Developmental Psychology at Harrisburg Area Community College, where she has received the President’s Award for Excellence.  She teaches a yearly course, Child Development in Context, which provides a study abroad experience to Romania for first generation college students. 

Camelia emigrated from Romania with her family in 1979, and returned to Romania as a Fulbright Research Scholar in 1999-2000, remaining for another 2 years to work with institutionalized and HIV+ children.  In the U.S. she has worked as a caseworker for mentally ill children and adolescents, a mental health counselor, a research coordinator, and a GED Instructor at the Cook County Jail in Chicago.

She is certified as a COS DVD Parenting Facilitator and regularly uses the COS model with student groups.  She is deeply committed to helping make COS available to professionals in Romania.

Francesca Manaresi

I am a psychologist and a evolutionary-cognitive psychotherapist and have been working for over 30 years with children, adolescents and their parents. At the beginning of my study the work of Klein and Winnicott have been most influential to me.  Afterward Attachment theory and the modern cognitivism guided my studies and my clinical activity. I have also conducted research in psychiatric epidemiology: specifically, identifying risk factors for borderline personality disorder and dissociative disorders. For this research, I collaborated with Gianni Liotti, a friend of John Bowlby, who brought the theory of attachment to Italy in both theoretical and clinical applications. Gianni Liotti and the theory of attachment have changed my professional and emotional life. He founded a research working group where I met my husband with whom I have been married for 25 years.

Another person who marked a transformative moment-- from a human and professional point of view-- is Bert Powell. I met Bert in Oslo where he was leading a 4-day Circle of Security Parenting™ course. Those four days pushed me to think about myself as a daughter and as a mother and I did not always like it; in some moments it was very painful but it was also transformative. I became passionate about the Circle of Security and, with Bert’s support, decided to bring COSP to Italy. This meant tackling the challenge of translating the manual and adapting and dubbing the DVD. This work has thrilled me and allowed me to study all the material in great detail…it was also a lot of fun! COSP has become my reference model both in the clinic and in training.  I now travel around Italy to train young colleagues who want to become psychotherapists and when conducting COSP trainings, I always find a great consensus.

In addition to working, I'm a fan of cinema, books, cooking and dancing. Last year at the venerable age of 55 years I became a teacher of Caribbean dance. Dance and cooking are my mindfulness activities. My husband and I have two wonderful children: Valeria and Leonardo, who are now young adults. Valeria is studying Psychology, Leonardo wants to become a naturalistic guide in South Africa.

Sono una psicologa e una psicoterapeuta a orientamento cognitivo-evoluzionistico e lavoro da oltre 30 anni con bambini, adolescenti e famiglie. All'inizio del mio percorso di formazione ho approfondito lo studio di M. Klein e D.W. Winnicott. Successivamente la Teoria dell'Attaccamento e il moderno cognitivismo hanno guidato i miei studi e la mia attività clinica. Mi sono anche formata nell'ambito della ricerca epidemiologica e ho partecipato a ricerche di epidemiologia psichiatrica: nello specifico ho lavorato in alcuni studi per l'individuazione dei fattori di rischio per lo sviluppo del disturbo borderline di personalità e dei disturbi dissociativi. Nell'ambito di queste attività di ricerca ho avuto il privilegio di conoscere e collaborare con Gianni Liotti, un amico di John Bowlby, che ha sostenuto, in Italia, l'interesse e l'approfondimento della Teoria dell'attaccamento sia da un punto di vista teorico che per quel che riguarda le applicazioni cliniche. Gianni Liotti e la Teoria dell'Attaccamento hanno cambiato la mia vita professionale e personale. Nel gruppo di ricerca su attaccamento e psicopatologia coordinato da Gianni Liotti ho conosciuto quello che sarebbe diventato mio marito con il quale sono sposata da 25 anni e con il quale ho due meravigliosi figli: Valeria e Leonardo.

Un'altra persona che ha contribuito alla mia crescita personale e professionale è Bert Powell. Ho incontrato Bert a Oslo dove stava conducendo il corso Circle of Security Parenting™. Quei giorni di formazione con Bert mi hanno permesso di riflettere e rielaborare alcuni aspetti della la mia storia di attaccamento e della mia genitorialità. Questo processo, per quanto doloroso, ha attivato un potente processo trasformativo, ancora in atto. Del resto non si finisce mai di elaborare le proprie esperienze.

In quei 4 giorni mi sono appassionata del Circle of Security e, grazie al supporto emotivo e professionale di Bert, ho deciso di portare il COSP in Italia. Questo ha significato non solo tradurre il manuale ma anche lavorare sull'adattamento e sul doppiaggio del DVD. E' stato un lavoro molto impegnativo ma straordinariamente interessante: mi ha permesso di approfondire il lavoro sul COSP e di pensarlo all'interno della specificità Italiana. Lavorare con gli attori doppiatori è stato anche molto divertente. Ora il COSP è diventato uno dei miei riferimenti più importanti sia nella mia attività clinica che nella mia attività di formatore e di supervisore. Faccio tanta formazione nelle scuole di specializzazione e conduco i training per il COSP in giro per l'Italia e, attraverso le reazioni e l'interesse dei colleghi, mi rendo conto di quanto sia potente questo modello.

Oltre al lavoro clinico e di formazione che mi coinvolge sempre molto, nella mia vita privata sono un'appassionata di cinema, libri, cucina e soprattutto ballo. Lo scorso anno, alla veneranda età di 55 anni sono diventata un'insegnante di balli caraibici.

La crescente autonomia dei figli crea spazi che è possibili riempire con altre "passioni". I miei figli, infatti, sono ora due giovani adulti: Valeria si è trasferita a Milano dove studia Psicologia e Leonardo sta studiando in Sud Africa per diventare guida naturalistica. Hanno preso sul serio la motivazione all'esplorazione!

Deidre Quinlan

A certified Circle of Security® supervisor, Deidre provides international training, clinical supervision, and site-based consultation with childcare centers, practitioners, clinicians, teachers, registered facilitators, and others interested in learning together at a deeper level the Circle of Security®. In addition, she provides COSP™ Fidelity Coaching and videotape review to researchers and facilitators around the world.

Deidre is particularly interested in resilience and the ability of the developing person to persevere and overcome childhood risks and adversities. She completed her graduate studies at the University of Minnesota as well as her post-graduate training in the Infant and Early Childhood Mental Health Certificate Program. Over the years, she has worked as a clinical social worker in a variety of settings including residential treatment, community group homes, schools, day treatment, child care centers, after school programs, and in out-patient clinics. For more than 20 years, Deidre focused her clinical work on our most vulnerable population, adolescent parents and their children, using a relationship focus on developmental repair to inform her work. She is endorsed by the Minnesota Association of Infant and Early Childhood Mental Health as an Infant Mental Health Specialist.

Deidre lives in Minnesota on a hobby farm on the North Shore of Lake Superior with her husband and three children, her father-in-law, many horses, some chickens, a few cats, a rabbit, and sometimes a dog.

Caroline Zanetti

Dr Caroline Zanetti has been working with the COS model since 2004, when she began providing the COS 20 week individualised video-feedback parenting program in Perth, WA. In 2011 she published a book chapter outlining her clinical work utilising the program. Caroline is an accredited COS supervisor and trainer, and holds an adjunct position as Associate Professor at Notre Dame University, Fremantle.

As a perinatal, infant and child psychiatrist she has been interested in the way relationships affect the functioning and mental well-being of children and parents alike. She led a non-government PIMH service in Perth for 13 years before co-founding the Elizabeth Clinic, a private multidisciplinary perinatal, infant & child health service in Perth. Caroline takes a relationship-based approach to working with families, and has supported the professional development of others who also want to work in this way.  Circle of Security is a valued part of the foundation of Caroline’s work, and that of other Elizabeth Clinic clinicians.

As a researcher, her interests are in theoretical constructs related to attachment and development, identifying parent-infant dyads at risk of mental health and relationship problems, and building interventions to support them.