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Changa Institute Research Center (CIRC) is a 501(c)(3) nonprofit research lab at the intersection of consciousness science and transformative technology.
Using immersive experiential technology, neuromodulation, neurofeedback, machine learning, AI, and altered states, we study the precise conditions under which human consciousness produces lasting positive change.
Our aim is specific: to capture, model, and reliably reproduce discrete states of consciousness, meditative and entheogenic, that generate measurable improvements in mental health, behavior, and human performance.
This work is grounded in something no other research institution has: a proven, real-world foundation
Changa Research Lab was born from Changa Institute, where we trained the nation's very first licensed psilocybin facilitators in U.S. history, shaped state regulation from the inside, and built a methodology tested across 500+ facilitators and thousands of real human journeys.
That depth of lived experience, combined with the most advanced neuroscience and AI tools available today, is what makes our research uniquely positioned to produce results that are not just publishable, but actionable. A living bridge between ancient healing wisdom and cutting-edge science.
For philanthropists and research partners, this is the opportunity to fund work that matters at a scalethat lasts.
We are developing replicable, scalable treatments for PTSD, depression, OCD, eating disorders, and generating the federal-level scientific evidence needed to make these treatments universally accessible. Every dollar invested in CIRC accelerates a body of research designed to reshape mental healthcare policy, unlock new frontiers of human optimization, and establish the evidentiary foundation for a new standard of care.
This is not incremental progress. This is infrastructure, built with rigor, with reverence, and with the conviction that humanity is only beginning to discover what it is truly capable of.
From First Cohort to Frontier Research
Founded Changa Institute. Nation’s first licensed psilocybin facilitators trained.
Rigorous Minds. Shared Mission.
Ronit Kishon, PhD
Dr. Ronit Kishon is an Associate Professor of Clinical Psychology in Psychiatry at the Depression Evaluation Service, New York State Psychiatric Institute at Columbia University, where she currently provides psychological support to treatment-resistant patients receiving psilocybin in an active clinical trial. A trauma specialist trained at Columbia University Teachers College and the West Haven VA at Yale School of Medicine, she has treated Holocaust survivors, combat veterans, and 9/11 survivors across two continents, and has overseen the clinical arm of multiple NIMH-funded studies focused on depression, anxiety, and PTSD. Her research examines the neurobiological and psychological mechanisms underlying therapeutic change, bringing both scientific rigor and profound clinical humanity to the Changa faculty.
Lisa Ginzburg
Lisa Ginzburg is the Founder and Principal Investigator of Changa Institute Research Center, driving the scientific and regulatory infrastructure behind the nation's first government-accredited psilocybin facilitator training program, licensed in Oregon, Colorado, and New Mexico. Holding an MS in Architecture from Columbia University, she brings systems thinking and experience design to the frontier of consciousness research.
A UN delegate, member of Oregon's Psilocybin Services Rules Advisory Committee, and internationally recognized expert in psychedelic-assisted therapy, Lisa has shaped psychedelic policy from the inside across three states. Her work at CIRC is driven by a single conviction: that rigorous, ethical research into consciousness and healing is the next frontier of human medicine.
Richard V. Rothenberg
Richard Rothenberg serves as Chief Technology Officer of Changa Institute Research Center, where he leads the integration of artificial intelligence and advanced data infrastructure into psychedelic-assisted therapy research. With deep expertise spanning quantitative finance, big data, and machine learning, Richard brings institutional-grade rigor to the science of consciousness and healing.
A research affiliate at Lawrence Berkeley National Laboratory and advisor to the Defense Advanced Research Projects Agency (DARPA), Richard also serves on the United Nations Task Force on Data for the Sustainable Development Goals and the UN Science, Technology, and Innovation Expert Group. He holds degrees from the Monterrey Institute of Technology, the CQF Institute, and a Master's in Management and Quantitative Finance from Columbia University.
Sarah Mennenga, PhD
Dr. Sarah Mennenga serves as Chief Science Officer of Changa Institute Research Center, bringing over 15 years of behavioral neuroscience research and seven years of specialized expertise in psilocybin-assisted psychotherapy to CIRC's clinical research programs.
Trained under Drs. Michael Bogenschutz and Stephen Ross at the NYU Langone Center for Psychedelic Medicine, Dr. Mennenga contributed to some of the earliest modern clinical trials of psilocybin-assisted therapy for addiction and cancer-associated anxiety and depression — foundational studies that established the safety and efficacy of psilocybin in psychiatry and shaped the trajectory of the entire field. She has authored over ten peer-reviewed manuscripts on psychedelic-assisted psychotherapy and is among a select group of experts in the clinical implementation of Schedule I drug trials in the United States.
Her research also spans neuroendocrinology, the neurobiology of addiction, and cross-species translation, exploring how hormonal states influence the etiology and treatment of mental health disorders across rodent and human clinical models.
Samantha Podrebarac
Samantha brings a rare convergence of clinical research experience and contemplative training to the study of psychedelic-assisted therapy.
She has worked alongside the research team at the NYU Center for Psychedelic Medicine on clinical trials investigating psilocybin-assisted psychotherapy for alcohol dependence and existential distress in individuals with a cancer diagnosis. Through her practice, Atman Spiritual Healing, she offers healing preparation and integration support grounded in both scientific and spiritual frameworks.
Samantha holds graduate training in Spiritual Psychology from Columbia University and Interfaith Chaplaincy training from the Graduate Theological Union at Berkeley. Her contemplative lineage spans Vedanta yogic meditation, Indo-Tibetan Dzogchen, spiritual healing, and constellation therapy, disciplines she brings to the forefront of ethical, whole-person psychedelic medicine research.
Dr. Richard Louis Miller
Dr. Richard Louis Miller is a clinical psychologist, author, and pioneering voice in psychedelic medicine with over 65 years of experience at the intersection of mental health, consciousness, and healing. A member of CIRC's Advisory Board, Dr. Miller brings a rare depth of clinical and cultural perspective to the frontier of psychedelic-assisted therapy research.
In 1972, he founded the internationally recognized Health Sanctuary at Wilbur Hot Springs, and in 1980 established Cokenders Alcohol & Drug Program — the nation's first wholistic chemical dependence treatment program. For over two decades he has hosted Mind Body Health & Politics, conducting in-depth conversations with leading thinkers on psychology, psychedelics, and democracy. Since 2017, he has authored seven books, beginning with Psychedelic Medicine: The Healing Power of LSD, MDMA, Psilocybin and Ayahuasca, and most recently Master Your Mind.