As a child and adolescent psychiatrist at the Child Study and Treatment Center, I am deeply inspired by the resilience of the youth we serve and by the collaborative spirit of our multidisciplinary teams. My work is grounded in curiosity, compassion, and respect for the complex systems that shape young people’s lives. My approach integrates evidence-based psychopharmacology with developmental and trauma-informed care, while always centering around the individual’s unique story and strengths. I value the relational and systemic dimensions of psychiatry: the interplay between family, community, and policy that influences recovery and growth. The multidisciplinary, relational model at CSTC reflects these values and continues to shape how I think about psychiatry: not only as a science, but as a deeply human endeavor.
My research and clinical interests include third-wave, cognitive-behavioral interventions for adolescents and young adults, family-based and parenting-related support for families of youth engaging in risky or challenging behavior, suicide prevention, prevention of child maltreatment, increasing equitable access to evidence-based services, and effective collaboration with clients who have been labeled as “resistant” by prior treatment providers.
Dr. Katherine Seldin is a faculty member and licensed clinical psychologist in the University of Washington’s Department of Psychiatry and Behavioral Sciences. Before joining this department, Dr. Seldin completed her PhD in Clinical Psychology at the University of Washington, residency at Northwestern University Feinberg School of Medicine, and fellowship at the University of Ilinois Chicago.
Dr. Seldin specializes in delivering evidence-based cognitive behavioral therapies (CBTs), including mindfulness-based and exposure-based psychotherapies such as Acceptance and Commitment Therapy (ACT) and Exposure and Response Prevention (ERP). Her research interests include mood disorders, sleep, digital intervention, emotional impulsivity, and ecological momentary assessment methodology.
As a clinical and quantitative psychologist, my work bridges statistical practice and psychological theory to better identify for whom, under what conditions, and why substance-related health disparities are greatest across development. My substantive research seeks to understand how individual differences in stress and developing self-regulation shape substance use and disorder from adolescence through young adulthood, and how these associations explain substance use disparities among sexual and gender minoritized communities. Stemming from this work, my methodological research is centered on improving the analysis and interpretation of nonlinear effects spanning parametric and non-parametric methodologies.
Dr. Samantha J. Reznik (she/her) is an Assistant Professor and licensed clinical psychologist in the Department of Psychiatry and Behavioral Sciences at the University of Washington School of Medicine. She is the Director for Seattle Children’s Psychosis Program, providing holistic mental health care to support individuals with psychosis ages 13-21 to reach goals aligned with personal values and passions. With a commitment to research, training, and clinical leadership in serious mental illness (SMI), she strives to create meaningful change in mental health services, ensuring individuals receive the recovery-oriented care they deserve.
As an investigator at the Supporting Psychosis Innovation through Research, Implementation, & Training (SPIRIT) Center, she focuses on dissemination and implementation research to increase access to and quality of care for individuals with SMI and other underserved populations. She currently supports the Central Assessment for Psychosis (CAPS) project to increase access to psychosis assessment and reduce barriers to early psychosis treatment engagement across Washington. She is also committed to advancing SMI and health service psychology training and is actively involved in related national service, including serving as the Chair-Elect of the APA SMI/SED Subsection and founding member and Co-Chair of SMI Future of Academia, Training, and Education (FATE) committee to advance doctoral psychology training in SMI.
Dr. Reznik earned her PhD in Clinical Psychology at the University of Arizona with a focus on psychophysiology and intervention science. Her clinical training included a Health Resources and Services Administration (HRSA)-funded Underserved Track clinical internship at University of Kansas Medical Center as well as an advanced clinical fellowship in rehabilitation and recovery for SMI at VA San Diego Healthcare System/University of California San Diego. She was previously a Research Assistant Professor at the University of Texas at Austin and investigator with the Advancing Early Psychosis Intervention Network in Texas (EPINET-TX) project.
Christina Warner, MD (she/her) is the attending psychiatrist for the Early Psychosis Clinic and Partial Hospitalization Program at Seattle Children’s Hospital. She has clinical expertise in mood disorders, psychosis spectrum disorders, First Episode Psychosis, chronic suicidality, mood dysregulation, neurodiversity, and Dialectical Behavior Therapy.
Dr. Warner is a Washington native and graduate of the Seattle Public School system with a vested interest in expanding access to high quality mental health care in her community.
I am a child and adolescent psychiatrist committed to improving outcomes for young people who face complex difficulties and systemic barriers. As a clinician, I aim to establish meaningful therapeutic relationships with young people and those supporting them, while also working to advocate for public policy and health systems that improve access to quality mental healthcare.
My main role includes providing inpatient care to older adolescents at the Child Study and Treatment Center through the Behavioral Health Administration, Washington State Department of Social and Health Services, and acting as training lead for psychiatry at this site. My clinical interests include the transition from adolescence to adulthood, the emergence of mood disorder and psychosis, early intervention for personality disorder, and developmental disabilities. I have academic interest in medical education, health service development, and the social determinants of mental health.
My interests focus on understanding etiology of substance use among adolescents and young adults, high risk events and the development of brief intervention and prevention efforts to reduce substance related harm. I have worked for over 20 years conducting research in governmental, private and academic settings to assess needs, assist in policy decisions and design intervention and prevention efforts. I am keenly interested in exploring opportunities to implement evidence-based approaches to enhance policies and practice.
