Trainers and Consultants
Amina Knowlan, MS
Founder, Director & Lead Trainer, Boulder, CO
Amina cofounded Matrix Leadership in 1990 (previously Group Leadership Training).
She has been facilitating groups and trainings for 30 years. She considers herself a social artist
and works as a trainer, facilitator, consultant and spiritual-somatic life coach. She was a
trainer for the Hakomi Institute of Body-Centered Psychotherapy for 15 years and an
owner/practitioner in Wellspring, Partners in Health (a holistic medical clinic) for
15 years. She incorporates somatic, energetic and intuitive approaches as well as dance,
movement, voice, art and practices of mindfulness into her work. She also leads retreats
for women entitled Fully Embodied Woman: Remembering the Sacred Feminine.
Amina has two children and lives in the beautiful mountain foothills of Boulder, Colorado.
Deb Sherer, BA
Senior Trainer, Evanston, IL
Deb, a practicing somatic therapist, has been with Matrix Leadership since
1994. She brings her background in Internal Family Systems and Process Work
into her heartfelt range of leadership. She is a graduate of two Hakomi trainings.
Through this body-centered psychotherapeutic model, she has specialized in
working with trauma. Deb has also studied with and is a member of a Qero Indian
Shamanic group. Her shamanic and medicine wheel training forms the foundation
for her clinical work with individuals. Deb has a B.A. from Washington University
with a certification in secondary education and is a graduate of the Chicago
School of Massage Therapy. She is married and has four children and two grandchildren.
Raven Wells
Co-Director & Trainer, Boulder, CO
Raven has been studying and working with Matrix Leadership since 2000. He currently leads psychotherapy process groups and is a consultant for Shifting Culture.
In the past, he has worked as a Wilderness Emergency Medical Technician, a ropes course facilitator,
a climbing guide and a guide for back-country youth-at-risk programs. Raven was in private practice as
a psychotherapist for five years, specializing in trauma recovery. He served as an assistant trainer
for Hakomi Integrative Somatics, taught with the Trauma Dynamics Institute, and spent five years
facilitating teenage addiction recovery classes for Boulder County Probation.
Jack Spivak, BS, MS
Trainer, Boulder, CO
As a facilitator and trainer Jack brings 25+ years perspective from
teaching, living systems research, and bioengineering. With an academic
background in aerospace and bioengineering, Jack has led diverse groups
since 1975 as a project engineer, an internationally certified technical
trainer, and an environmental activist. He is passionately inspired by
the realization that creative, loving, effective, and satisfying groups
are actually possible. He is dedicated to their emergence in our day to
day lives. Living an intimate and comfortable dance with Chaos, Jack
describes himself as "a surprisingly human engineer whose best and worst
qualities are probably the same." He practices what he preaches daily
as a loving partner and father of his son.
Carol Jungman, MSOD
Trainer & Organizer, Evanston, IL
Carol is a Cross-Cultural Training Consultant, Cendant Mobility Organization
Development Consultant and Facilitator, and Matrix Leadership facilitator.
Carol has been with Matrix Leadership/GLT since 1998. She has over 13 years
of experience managing and training within the intercultural and organizational
development fields. Carol has facilitated and co-created individual, couple,
family and specialized group programs for Fortune 1000 companies and has designed
and led staff retreats and strategic planning sessions for small and mid-size
businesses and not-for-profits. She was also a leader in the Chicago Psychology
Network for several years. Prior to that, Carol lived and worked in Finland
and Israel, and traveled extensively throughout Europe. She received her Bachelors
degree in business and journalism and her Masters degree in organization development.
She is married and has two young children.
Gregory Gaiser, CMT, CHT
Trainer, San Antonio, TX
Gregory utilizes his 25+ years as a therapist in the Matrix Leadership Trainings.
Gregory is a certified massage therapist as well as an Hakomi Teacher, so he brings
a sound influence of body mind integration to the trainings as well. He first studied
group dynamics with Amina Knowlan in 1990. He is well educated in the resolution of
trauma as well. He is known for his warm and solid teaching style, and has led Hakomi
workshops, trauma workshops and MLT throughout the U.S. and abroad.
Debra Sheehen, BS, MT, RCST
Facilitator, IN
Debra has been in the field of massage therapy/somatic education for 20 years.
She has studied mind/body therapies with the Hakomi Institute and Center for Self
Leadership/Internal Family Systems and body therapies of Orthobionomy/Craniosacral
work throughout the 20 years. For the past 6 years, she has studied with world-renowned
teachers in pediatric, pre- and perinatal birth psychology. She has studied with the HeartMath Institute in California and is now a licensed provider teaching and coaching these concepts to individuals. Her passion and compassion
for integrating all of one's self, and being led by one's authentic Self has led her to
be on the teaching teams for Craniosacral work and Matrix Leadership. She is currently
teaching these concepts to help women in poverty become aware of transgenerational
patterns and utilize the new sciences to "grow" the brain of a child to change these
patterns through awareness and love.
Joanne DeMark, PhD, CHT
Trainer & Organizer, Atlanta, GA
Joanne brings 30+ years of experience as a facilitator, human resource development executive and consultant, academic, Hakomi psychotherapist, and social justice activist to her work with Matrix Leadership Institute. She received her Ph.D. in an APA-approved Counseling Psychology program from the University of Florida. In private practice, she has seen clients for couples work, career counseling and guidance, executive coaching, anxiety disorders and self esteem/self identity issues, connecting the work to mind/body/spirit integration and a social justice perspective. Joanne has been the senior HRD executive in a leading firm in the health care information systems and services industry, and has consulted to companies, healthcare, nonprofits, universities and schools, communities of faith, and federal, state and local government throughout the country. Joanne is Associate Director, a founding member, and a constituency caucus leader for the Atlanta chapter of the National Coalition Building Institute International. She co-created Social Artistry for Social Justice, which integrates Matrix Leadership and culturally competent facilitation skills.
Tom Pigman, BS
Facilitator, Williamsport, IN
Tom Pigman is a facilitator with Matrix Leadership/GLT and has been involved with the organization
for six years. He has more than a dozen years of experience in community development and is
currently working as a director of youth outreach, helping teens connect with their communities
and families. Tom has lived and worked in West Africa (Ghana), Brazil, and Chile, where he was
involved in rural economic development. Tom has been trained and has led groups in the Group
Facilitation process and Participatory Strategic planning methods of ICA (Institute of Cultural
Affairs). Tom received his BS degree from Southern Illinois University. He resides on a forty
acre farm in rural Indiana, along his wife and three children.
Charna Rosenholtz, BA, NCTMB
Facilitator, Boulder, CO
Charna holds her degree in communication theory and psychology from the University
of Colorado, Boulder. Charna is a healing arts practitioner with over 20 years of
experience in the fields of therapeutic massage and bodywork, body-centered psychotherapy,
nutrition, dream work and energy work. A national educator and lecturer on massage
and wellness, Charna has presented in a wide variety of settings and sits on the
national Board of Directors with the American Massage Therapy Association.
She has studied with medicine woman, clergy, and master teachers regarding personal
growth and spiritual health. Charna has been working with teens since 1997 to help
them to build awareness in regard to the difficulty of growing up in today's world as
well as presented on issues of spirituality to all age groups. Charna has completed in
a certificate course in spiritual storytelling and is a graduate student of comparative
religious studies at Naropa University, in Boulder, CO.
Paul Kuykendall
West Coast Organizer, San Jose, CA
Paul is a counselor and group facilitator for
South Bay Groups.
He holds a BA in Philosophy from Santa Clara University and is a graduate of the
Hakomi Institute of San Francisco. He also trained in the Hakomi Method and Assisted
Self-Discovery with Ron Kurtz, the founder of Hakomi. Paul uses Assisted Self-Discovery
Counseling to enable individual and group clients to develop awareness in responding to
stress, change and difficult life situations.
Arlyn Deva Heideman
Apprentice Facilitator, Boulder, CO
Arlyn has been leading workshops and groups for 8 years (and participating in them all
her life) and brings her love of creative expression, deep listening and hope for an
awakened society to her leadership and office work. Arlyn is a graduate from Matrix
Leadership Institute's Facilitator Training and has her B.A. degree in Expressive Arts
through Prescott College. She is a DJ (radio and dance parties), loves book-arts, and
has been a professional performer of aerial work, stilts, improvisation and as a
co-choreographer. Arlyn has led movement in a variety of contexts including spiritual
retreats, an outdoor dance party for hundreds of people, community holiday celebrations,
on the beach in Mexico and more. "My prayer is to be exactly in the present moment and
know myself as love."