Meet the Team
Director
Professor of Psychiatry, UC San Diego
VA Rehabilitation Research and Development Research Career Scientist
Director, Clinical Research Unit, Center of Excellence for Stress and Mental Health
VA San Diego Healthcare System
Dr. Twamley is a Professor of Psychiatry at UC San Diego (UCSD) and the Director of the Clinical Research Unit of the Center of Excellence for Stress and Mental Health (CESAMH) at the VA San Diego Healthcare System (VASDHS). She is a VA Rehabilitation Research and Development Research Career Scientist. Dr. Twamley earned a PhD in Clinical Psychology from Arizona State University and completed her clinical psychology internship and postdoctoral fellowship at UCSD and VASDHS. She is a faculty member in the SDSU/UCSD Joint Doctoral Program in Clinical Psychology (clinical neuropsychology and experimental psychopathology tracks); a faculty member of the Stein Institute for Research on Aging (SIRA) at UCSD; and Co-Director of the UCSD Research Fellowship in Geriatric Mental Health.
Dr. Twamley's research focuses on cognitive interventions for individuals with neurological and psychiatric conditions. Pursuing a longstanding interest in the links between cognition and everyday functioning, she has developed compensatory cognitive training interventions (see www.cogsmart.com) for people with psychiatric illness, traumatic brain injury, and mild cognitive impairment, and other neuropsychiatric conditions. These manuals have been adapted for other populations (e.g., autism, Parkinson’s disease, multiple sclerosis, post-traumatic stress disorder, HIV, and hoarding) and translated into multiple languages. Other research interests include cognitive impairment and disability in homeless individuals, supported employment, the neuropsychology of everyday functioning, cognitive impairment in PTSD, and the use of technology to improve cognition. Dr. Twamley’s research has been funded by awards from NIH, VA, DoD/CDMRP, NSF, and BBRF/NARSAD.
Dr. Twamley is an active teacher and mentor whose trainees include undergraduates, doctoral and medical students, and postdoctoral fellows. She is a licensed clinical psychologist specializing in neuropsychological assessment, cognitive rehabilitation, and supported employment. Dr. Twamley is particularly interested in community-based interventions that help people reach their highest potential social and occupational functioning. She supervises neuropsychological assessments at the St. Vincent de Paul Village Family Health Center, serving the largest homeless shelter in San Diego.
Postdoctoral Fellows
Dr. Jessica Zakrzewski is a UCSD T32 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.
Dr. Laura Campbell is a UC San Diego T32 postdoctoral fellow working under the mentorship of Dr. Twamley. She completed her Ph.D. in clinical psychology with a concentration in neuropsychology from the San Diego State University/UC San Diego Joint Doctoral Program. She is a graduate of the Charleston Consortium Internship Training Program. Her research interests include integrating digital tools into neurocognitive research and interventions, particularly in older adults. More specifically, by utilizing neurotechnologies, she hopes to augment interventions as well as better understand and more frequently measure neurocognitive and neuropsychiatric outcomes.
Graduate Students
Amber is a fourth-year graduate student in the SDSU/UC San Diego Joint Doctoral Program in Clinical Psychology, in the clinical neuropsychology track. Upon earning a BA in Psychology at UCSD, she worked as a research associate for several neuropsychological research studies at the VA San Diego Healthcare System. Her research and clinical experiences span across diverse populations such as civilians and/or Veterans with mild cognitive impairment, schizophrenia, PTSD, traumatic brain injury, and depression.
Amber's interests are in treatment development research aimed at improving emotional, cognitive, and functional outcomes in individuals with psychiatric illness and cognitive disorders. Specific interest areas include associations between clinical symptomatology and cognitive functioning in older adults, as well as in individuals with severe mental illness; the use of technology for fostering independence in older adults; and suicide prevention in individuals with complex psychiatric illness and cognitive disorders (e.g., PTSD/TBI, MCI, and schizophrenia).
Ilyssa is a first-year graduate student in the SDSU/UC San Diego Joint Doctoral Program in Clinical Psychology. She earned a B.S. in Biopsychology and French from Tufts University, during which her undergraduate internship experiences incited her interests in neuropsychology and intervention research. She then worked as a postbaccalaureate research fellow in the Section on Psychosis and Cognitive Studies at the National Institute of Mental Health.
Ilyssa’s primary research interest is in the development of interventions aimed at improving cognitive and functional outcomes in a diverse array of adult populations with psychiatric and/or neurological symptomatology, including individuals with schizophrenia spectrum disorders, mild cognitive impairment, PTSD, and traumatic brain injury. She is also interested in exploring factors (e.g., biomarkers, environmental influences) that may moderate effects of intervention on cognition, symptoms and overall functioning.
Neuropsychologist
Dr. Parikh is a licensed Clinical Psychologist and Neuropsychologist. She completed her undergraduate education at UC San Diego. She obtained her doctorate in Clinical Psychology from University of Texas Southwestern Medical Center where she also completed a pre-doctoral internship focused in neuropsychology. She then completed a formal two-year clinical postdoctoral fellowship specializing in neuropsychology at the at the VA Northern California Health Care System and University of California, Davis School of Medicine. She currently works with Dr. Twamley to deliver cognitive training interventions to a broad range of Veteran and active duty populations.
Dr. Parikh has developed considerable experience providing neuropsychological assessments and cognitive rehabilitation to individuals with various conditions including dementia and other neurodegenerative disorders, movement disorders, traumatic brain injury, cerebrovascular disease, cancer, ADHD, and general medical and psychiatric conditions. She places particular emphasis in providing meaningful feedback and recommendations to assist patients and families in day-to-day functioning and cope with longer term changes in their daily lives.
Study Coordinators
Delaney is a recent UCSD alum who graduated with a BA in psychology in June of 2021. She plans on applying to graduate programs in upcoming years.
Delaney's research interests center around intervention development and efficacy; in particular, she's interested in psychosis and Obsessive Compulsive Disorder.
Data Manager
Matthew Morgan began his career in the Twamley SMART Lab as Dr. Twamley's honors student in 2012 during his third year at UCSD. After graduating with a BA in psychology from UCSD, Matthew completed his MSW with a behavioral health concentration at California State University San Marcos.
As a jack-of-all-trades, Matthew has had many roles in the Twamley lab over the years. In addition to data management for the Twamley SMART Lab, Matthew serves as a data manager and database consultant for numerous CESAMH studies.
Recent Alumni
Dr. Jillian Clark is a fellow in the VA Center of Excellence for Stress and Mental Health. She earned her Ph.D. in Clinical Psychology, with emphasis in Clinical Health Psychology, from the University of Missouri-Kansas City. Dr. Clark completed her pre-doctoral internship at VA San Diego/UC San Diego.
Dr. Clark’s research interests center on examining biological, psychological, and social experiences in individuals with neurotrauma (e.g., spinal cord injury and traumatic brain injury) and chronic illness. She is particularly interested in identifying modifiable biopsychosocial risk factors to inform interventions aimed at improving functional outcomes across the lifespan in these populations.
Zanjbeel Mahmood is a fourth-year doctoral student in the SDSU/UC San Diego Joint Doctoral Program in Clinical Psychology, with a focus in neuropsychology. Her research converges at the intersection of neuropsychology and rehabilitation science, focused on examining the neurocognitive and functional consequences of neurodegenerative disease and severe mental illness. In particular, she is interested in characterizing the mediators and moderators that hold potential to reduce functional disabilities of disease. Zanjbeel is also interested in leveraging cutting-edge technology (e.g., biosensors, wearables) and advanced statistical models within her research to develop integrated cognitive and behavioral interventions to promote brain health and improve patient outcomes. Her work has been presented at both national and international conferences and published in several peer-reviewed journals including the Journal of the International Neuropsychological Society, Alzheimer’s & Dementia, Schizophrenia Research, and Health Psychology.
Dr. Maye is a staff neuropsychologist and research scientist in the VA San Diego Healthcare System (VASDHS). She earned her doctorate in Clinical and Health Psychology with a specialization in neuropsychology from the University of Florida. She completed an internship at VASDHS/University of California, San Diego, and then a post-doctoral fellowship under the mentorship of Dr. Twamley in the Center of Excellence for Stress and Mental Health (CESAMH) at VASDHS.
Dr. Maye’s research focuses on cognitive interventions for individuals at risk for dementia. She is interested in older adult brain health and the use of cognitive rehabilitation to optimize thinking skills, functional independence, and quality of later life. She is the recipient of a Career Development Award-2 from the VA Rehabilitation Research & Development service and is the principal investigator of the study “Assessing and Improving the Durability of Compensatory Cognitive Training (CCT) for Older Veterans.”
Dr. Ryan Van Patten earned his Ph.D. in Clinical Psychology from Saint Louis University in Saint Louis, MO. He completed a Psychology Internship at Brown University in Providence, RI, and he recently finished a two-year postdoctoral fellowship in neuropsychology at the University of California, San Diego. He is now a neuropsychologist at the VA Providence Healthcare System and Brown University.
Ryan's career goals include working as a clinical scientist, writing grants and carrying out large-scale research projects in a variety of topic areas related to neuropsychology and geriatrics. He also plans to spend a significant portion of his time teaching and completing clinical neuropsychological evaluations.
Dr. Austin is a licensed psychologist and Research Health Scientist at VA San Diego Healthcare System (VASDHS). She earned her PhD in Clinical Psychology with a specialization in neuropsychology and health psychology from Brigham Young University. She completed an internship at the University of Missouri/Missouri Health Science Psychology Consortium, and then post-doctoral fellowship at the VISN 17 Center of Excellence in Waco Texas, with a third year at the Center of Excellence for Stress and Mental Health (CESAMH) at VASDHS.
Dr. Austin’s research focuses on cognitive rehabilitation for novel populations exposed to a range of chemical, physical, environmental, and infectious hazards, including exposure to novel infectious diseases, such as COVID-19. She is the recipient of a Career Development Award-2 from the VA Rehabilitation Research & Development service and is the principal investigator of the study “Cognitive rehabilitation to improve functioning in Veterans following COVID-19.”