Meet Our Team

Shubir Dutt, PhD

Assistant Professor

Shubir Dutt, PhD, is an assistant professor and licensed clinical neuropsychologist at the UCSF Memory and Aging Center. Dr. Dutt earned a Bachelor of Arts degree in cognitive science from UC Berkeley and a doctorate in clinical psychology, with an emphasis in neuropsychology and geropsychology, from the University of Southern California. He completed his predoctoral internship and two-year postdoctoral fellowship in neuropsychology at UCSF.

Alexander Ehrenberg, PhD

Assistant Researcher

Alex is a biomedical scientist focused on neurological and psychiatric disease pathogenesis and therapeutic development. He received his BA and PhD from UC Berkeley with additional research training at UC San Francisco's Memory & Aging Center under the joint mentorship of Dr. Lea Grinberg and Dr. Daniela Kaufer. Alex's training included specialization in neuropathology, epidemiology, comparative neurology, molecular genetics, and cell biology.

Tara Ellingson

Assistant Clinical Research Coordinator

Valerie Escobar, PhD

Specialist

Valerie joined the Yokoyama Lab in 2023 as a staff scientist with a career-long interest in evaluating genetic factors involved in neurological diseases. She earned a PhD degree in Neuroscience at the University of Michigan, where she identified transcriptional regulation sequences for a gene involved in epilepsy and movement disorders. During her postdoctoral fellowship at NHGRI and UCSF, she studied the role of alpha-synuclein in Parkinson’s disease.

Laura Fenton

Laura Fenton, MA

Intern - Clinical Psychology

Laura Fenton is a predoctoral fellow in the UC San Francisco Clinical Psychology Training Program, where she works in Dr. Kaitlin Casaletto’s lab. Her research focuses on understanding how modifiable lifestyle factors, such as physical activity and sleep, can promote brain health during aging. Prior to joining UCSF, she received her BA degree in psychology from the University of California, Berkeley.

Kristen Fernhoff

Research Associate

Kristen joined the Selective Vulnerability Research Laboratory led by Dr. William Seeley in January 2022 as a research associate. She assists with neuroimaging data management and analysis. She received her BA degree in psychology from Washington University in St. Louis where she volunteered in the Cognitive Control and Psychopathology Lab.

Luke Fischer, MD, PhD

Research Fellow in Neuropathology

Dr. Luke Fischer (he/his) is a neurologist-neuroscientist with an interest in Lewy body disease. He graduated Phi Beta Kappa from Michigan State University with degrees in Philosophy and Biochemistry & Molecular Biology, and he remained there to complete his PhD degree in Neuroscience in the laboratory of Dr. Caryl E. Sortwell as part of a dual-MD/PhD program. As a trainee in the NINDS Morris K.

Taru Flagan, PhD

Research Scientist

Taru received a bachelor of science degree in cognitive neuroscience from the University of California, San Diego and completed a PhD degree in psychology in the Self-Regulation Laboratory at the University of Texas at Austin in 2016. She joined the Dementia Imaging Genetics Lab in 2017 to support neuroimaging methods for understanding the underlying biology of genetic variants of frontotemporal dementia.

Melina Flores

Executive Administrative Assistant to Francesca Pei, PhD

Melina Flores has worked in healthcare for over 15 years. She received a bachelor’s degree in Healthcare Management in 2015 and found working in the healthcare industry to be her passion, allowing her to nurture her desire to help others.

Jessica Foley, PhD, PsyD

Clinical Neuropsychologist

Jessica M Foley, Ph.D., ABPP-CN
Board Certified Clinical Neuropsychologist
Assistant Clinical Professor, Department of Neurology

Celeste Fong

Clinical Research Coordinator

Originally from Huntsville, Alabama, Celeste earned her undergraduate degree in Neuroscience at the University of Alabama at Birmingham. While there, she took several philosophy courses, inspiring her interest in bioethics. Afterwards, Celeste enrolled in the Masters of Bioethics program at Emory University in Atlanta, Georgia. Her thesis research consisted of examining ethical perspectives of identity in patients who had undergone deep brain stimulation for treatment resistant depression.

Kristen Fox, RN

Research Nurse Manager

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