Lab Members

Interested in joining the lab?

Please reach out

Richard Zeifman, Ph.D.

Assistant Professor of Psychology

Richard Zeifman, Ph.D.

Richard is an Assistant Professor of Psychology (Clinical) and Director of the PATH Lab at The New School for Social Research, with appointments at the NYU Grossman School of Medicine and Imperial College London. His research examines the safety, efficacy, and mechanisms of change underlying psychedelic-assisted therapy, using multi-method approaches across clinical trials and real-world effectiveness studies for conditions including major depression and PTSD. He completed his Ph.D. in Clinical Psychology at the Toronto Metropolitan University, clinical internship at the Centre for Addiction and Mental Health (CAMH), and postdoctoral fellowship at the NYU Grossman School of Medicine. His research has been supported by $2 million in competitive funding, including $529,000 as principal recipient and $1.5M as co-investigator on federally funded grants. Richard has experience teaching undergraduate and graduate courses, as well as providing clinical and research supervision for research assistants, graduate students, and psychiatry residents. He is a licensed psychologist in New York, a quality-rated Cognitive Processing Therapy (CPT) provider, and serves as a study therapist on clinical trials of psilocybin and MDMA-assisted therapies.

Silver Liftin

Psychology MA Student and Lab Manager

Silver Liftin

Silver’s research interests focus on psychedelic-assisted therapy for PTSD, end-of-life or existential distress, and anorexia nervosa, as well as the relationship between Reward Devaluation Theory (RDT) and clinical outcomes in psychedelic-assisted treatment. She is a second-year Psychology MA student on the Substance Use and Mental Health track, and serves as the lab manager of the PATH Lab. Silver received a BS in Cognitive Science from Yale University, where her senior thesis examined factors associated with remission from the clinical high-risk for psychosis state. She is also a research assistant in the Emotional Processes and Experimental Psychopathology Lab at the New School.

Chloe Wong

Psychology MA Student

Chloe Wong

Chloe's research interests include exploring moderators of challenging experiences during psychedelic-assisted psychotherapy and evaluating the feasibility of psychedelic treatments for disorders with limited pharmacological interventions or treatment efficacy, such as borderline personality disorder. She is a first-year psychology MA student at The New School. Chloe received her BA in psychology from New York University, with a double major in neuroscience and a minor in child and adolescent mental studies. She has contributed to research at NYU, NYU Langone, and the Icahn School of Medicine at Mount Sinai, where she worked on projects utilizing multiple neuroimaging modalities.

Tali Fel

Psychology MA Student

Tali Fel

Tali's work focuses on exploring how psychedelic-assisted psychotherapy may benefit individuals with eating-related issues, particularly anorexia nervosa. She is especially interested in the role of cognitive flexibility, and hopes to understand how psychedelic treatments might promote adaptive shifts in cognition and emotion among individuals with complex presentations. Tali is a first-year M.A. student in Psychology at The New School. She earned her B.A. in Psychology from the University of Pennsylvania, where her senior thesis examined the manifestation of PTSD in parents of adolescents with anorexia nervosa.

Simon Dickinson

Volunteer Research Assistant

Simon Dickinson

Simon's background spans law, public policy, and technology. His graduate thesis advised Jigsaw, Google's think tank, on evidence-based strategies to reduce susceptibility to misinformation on social media. Simon received his LLB (Hons I) from the Australian National University, graduating at the top of his class, and earned a Master in Public Policy from the Harvard John F. Kennedy School of Government. He has served as a judicial clerk at the Federal Court of Australia, a litigation attorney, and most recently as Chief Operating Officer and co-founder of Impala, a startup helping over 8,000 nonprofits and universities use data to fundraise more effectively.

Cooper Tretter

Part-Time Research Assistant

Cooper Tretter

Cooper is curious about how we interpret and integrate psychedelic experiences, drawing on perspectives from contemplative traditions and, increasingly, AI. His background spans evolutionary biology, field primatology, and data science. Cooper received his BA in Human Evolutionary Biology from Harvard University in 2023, where he explored the intersections of biology, psychology, and behavior. Following graduation, he spent three months in Uganda's Kibale Rainforest as a Booth Travelling Fellow, studying emotional processes in wild chimpanzees during intergroup conflict using observer-based coding to analyze affective states and physiological arousal. He currently works as an Analytics Engineer at NCD, applying data science to healthcare problems.