Principal Investigators
Post Doctoral Fellows
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Jessica Zakrzewski, PhD
Dr. Jessica Zakrzewski is a UCSD T32 Geriatric Mental Health Postdoctoral fellow working under the mentorship of Dr. Twamley and Dr. Ayers. She completed her Ph.D. in Clinical Psychology with a concentration in neuropsychology at the University of Florida. She is a graduate of the Brown Psychology Internship Training Program.
Her research interests center on intersections between psychiatric disease and neurocognition in older adults, with a particular emphasis on chronic hoarding disorder and anxiety. She hopes to better understand how psychiatric disease effects neurocognitive aging processes and to develop interventions to help offset cognitive and functional decline in later life.
Study Therapists
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Meghan Lally, MA, MSW, ASW
Meghan earned a BS in Psychology from the University of California, San Diego, an MA in Clinical Psychology from Arizona State University, and an MSW from the University of Southern California. For more than 10 years, she has provided mental health therapy and case management services for adults in outpatient and residential treatment settings. Meghan's clinical approach focuses on delivering compassionate, evidence-informed care while supporting clients in achieving meaningful growth and enhancing overall well-being. -
Mariah Cook, BA, MSW (in progress)
Mariah graduated from the University of San Diego (USD) with a BA in Psychology and is currently obtaining her Master of Social Work at San Diego State University. She has published research in the Journal of Child and Family Studies, focusing on the relationships between child and parental mental health. She currently works as a Clinical Research Coordinator and Study Trainer, implementing treatment protocols in the ongoing UCSD NIH-funded study for Geriatric Hoarding Disorder.
Study Coordinators
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Michelle DeWitt, BA, MR
Michelle holds a B.A. in Human Development and a M.R. in Family Life and Youth Development. Her career experience has consisted of work in a variety of diverse research settings, serving in various coordinator roles. Equipped with a deep understanding of the challenges that individuals and families face in their journey’s to lessen clutter, she has a passion for working with individuals to create a profound, positive influence in their lives.