SAPIC is an APA Accredited Internship Program

Liz Dampsey, Ph.D. is a Health Psychologist and the Training Director for the Southern Arizona Psychology Internship Center (SAPIC) at La Frontera Center.  She is a graduate of Fielding Graduate University and was a SAPIC predoctoral intern in 2016-2017.  She also completed a full-time postdoctoral fellowship at Sierra Tucson where she provided a variety of psychological test evaluations.  Liz‘s professional focus as a psychotherapist has included working with people facing various issues from a trauma-informed approach for the past 18 years.  Her life-long interest and passion in the mind/body connection and somatic modalities led to her training in Equine-Assisted Psychotherapy, Somatic Experiencing, Movement-Based Expressive Arts Therapy, and Adventure Therapy.  She worked at Sierra Tucson, an inpatient psychiatric hospital/behavioral health treatment facility from 2001 to 2016 and served in several positions including Coordinator of the Grief and Spirituality department where she supervised and trained staff in Gestalt techniques.  In addition, Liz served as an Equine-Assisted Psychotherapist, Somatic Experiencing Practitioner, and Movement-Based Expressive Arts Therapist; she also developed interventions that integrated Equine-Assisted Psychotherapy and Somatic Experiencing.  Liz served on the Diversity Committee, facilitated LGBTQ support groups, and was the LGBTQ staff advocate.  She seeks to provide a supportive learning environment for supervisees through a collaborative, developmental approach.

Marden Petrie, Psy.D., is a Clinical Psychologist who relocated from Minnesota to Arizona in 2011 and is currently supervising SAPIC interns in conducting assessments, and in private practice in the Tucson area. She returned to school in 2001 after a rewarding 25-year career as a marketing executive to obtain a doctorate in Clinical Psychology and has trained and practiced in a variety of multidisciplinary clinical settings, including Methodist Hospital-Eating Disorder Institute, Hazelden Center for Youth and Families, and St. Olaf University Counseling Center. In addition, she volunteered for two years as a part-time therapist at the Walk-in Counseling Center in Minneapolis, which is the last remaining privately funded, free, community mental health center in the nation. She completed her APA accredited Internship and full-time Fellowship, funded by the George Foundation, at the Hamm Memorial Psychiatric Clinic in St. Paul, Minnesota. She has worked with individuals, couples, and groups with various presenting concerns to better understand strengths and vulnerabilities, restore stability, build resilience, and expand relational understanding and flexibility. She has supervised Interns and Postdocs in various residential and outpatient settings. Trained in several traditions including psychodynamic and cognitive behavioral, she has found attachment theory to be a useful tool for understanding and treating a variety of mental health challenges. Her style is warm, collaborative, and honest.

Arni Vikingur Sveinsson, Ph.D. is LFC’s Child and Family Psychologist. He graduated from the University of Arizona School Psychology Program in 2005 and completed an APA accredited internship program at the Sunset Park Mental Health Center in New York City, a hospital affiliated community mental health center serving culturally diverse populations. Dr. Vikingur Sveinsson has over 15 years of experience as a school psychologist with specific emphasis on providing services to children with autism and their families. His focus in private practice has similarly been on children and families, with a broad scope of practice ranging from play therapy with young children to conducting custody evaluations for the Superior Court. Prior to taking a full-time position with La Frontera in May 2017, Dr. Vikingur Sveinsson was in part-time private practice, part-time psychologist with Devereux Assessment and Intervention Center where he was a member of a multidisciplinary evaluation team, and part-time school psychologist at Ocotillo Learning Center where he conducted assessments of preschool children suspected of developmental disorders. In the capacity of a school psychologist, Dr. Vikingur Sveinsson has been a site supervisor for the training of numerous students enrolled in the University of Arizona School Psychology Program. His approach to supervision is collaborative and developmental, with emphasis on providing a warm but stimulating environment to foster supervisee’s growth and competence as emerging psychologists.

Roxana Samaniego, Ph.D. has been part of the Tucson psychology community for over 13 years.  She graduated from the Clinical Psychology Program at Arizona State University and did her predoctoral internship at The Southern Arizona Psychology Internship Consortium (SAPIC). She began her career in school psychology at the Tempe Elementary School District and taught for over 10 years for Northern Arizona Distance Programs in the areas of multicultural counseling and educational psychology.  Roxana has also been a board member of the Southern Arizona Psychological Association for a number of years and currently chairs the SAPA in the Community Committee.  She has been on several committees through AZPA, including the membership and leadership development committees.

Currently, she works in private practice and at the University of Arizona’s Strategic Alternative Learning Technique Center (aka The SALT Center), which is a program designed for students with learning challenges. In her work with interns, she strives to bring a multicultural emphasis to further the intern’s understanding of the various ways in which culture and identity impact all aspects of our work.

APA Commission on Accreditation contact information:

American Psychological Association
Program Consultation and Accreditation
750 First Street, NE
Washington, DC 20002-4242
(202) 336-5979




Liz Dampsey, PhD

(520) 306-6922


EMPACT-Suicide Prevention Center, La Frontera center, La Frontera Mariachi and La Frontera Partners all are members of La Frontera Arizona