Neuropsychologists & Cognitive
Neuroscientists
Nina Dronkers, PhD
Julene Johnson, PhD
Joel Kramer, PsyD
Katherine Possin, PhD
Caroline Racine, PhD
Katherine Rankin, PhD
Indre Viskontas, PhD
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Nina Dronkers, PhD PubMed
Dr. Dronkers received her
PhD degree in Neuropsychology from the University of
California, Berkeley in 1985.
Nina Dronkers is a consultant
to the UCSF Memory and Aging Center and specializes in
adult speech and language disorders. Dr. Dronkers assists
in the evaluation of those individuals with progressive
changes in their speech or language skills and participates
in ongoing research concerning language abilities in
dementia.
She is currently the Director
of the Center for Aphasia and Related Disorders and the
Chief of the Audiology and Speech Pathology Service at
the Department of Veterans Affairs Northern California
Health Care System. She also holds an appointment as
Adjunct Professor in the Departments of Neurology and
Linguistics at the University of California, Davis.
Dr. Dronkers' expertise is
in the field of Aphasia and in understanding the language
and communication deficits that can occur with neurological
disease. She has conducted extensive research in this
area and in the localization of language functions in
the brain. UP

Julene Johnson, PhD Publications (PDF)
Dr.
Johnson received her PhD in Cognitive Neuroscience from the University of Texas (Dallas) and a Bachelors of Music from
Southern Methodist University. She did her
postdoctoral training with Dr. Carl Cotman
at UC Irvine.
Dr.
Julene K Johnson is a Cognitive Neuroscientist
and Associate Professor of Neurology at the
UCSF Memory and Aging Center. Dr.
Johnson leads the California Non-Alzheimer
disease Diagnostic Reliability Consortium with
UCSF, UCLA, UC Davis, UCSD, UC Irvine, and
USC. The purpose of this project is to
evaluate diagnostic reliability and accuracy
of non-Alzheimer disease dementias. She also
studies the perception of music in dementia.
Her
research interests include cognitive and neuropathological
studies of mild cognitive impairment, frontotemporal
dementia, and Creutzfeldt-Jakob disease.
She is particularly interested in the frontal
cortex and executive function, especially
in the pre-clinical stages of dementia. UP

Joel Kramer, PsyD PubMed
Dr. Kramer earned his Doctorate in Psychology
at Baylor University and completed a postdoctoral fellowship
at the Martinez VA hospital. Dr. Kramer is board certified
in clinical neuropsychology and serves on the Board of
Directors of the American Academy of Clinical Neuropsychology.
Dr. Kramer is a Clinical Professor of Neuropsychology
in Neurology and the Director of the Memory and Aging
Center Neuropsychology program.
Dr. Kramer has been extensively involved
in studying the cognitive changes associated with brain
disorders for the past two decades. He has co-authored
widely used neuropsychological measures of memory and
executive functioning. Much of his work has been devoted
to identifying the different ways in which neurodegenerative
diseases affect memory and other abilities and in utilizing
these differences to improve differential diagnosis in
clinic.
Presently, Dr. Kramer's active areas of
research include studying the cognitive effects of cerebrovascular
disease and frontotemporal dementia, identifying behavioral
markers of pre-clinical Alzheimer's disease, and understanding
the relationships between aging, hormones, and behavior. UP

Katherine Possin,
PhD 
Katherine Possin was awarded her Ph.D. in
Clinical Psychology from UCSD in June 2007 and completed her internship
at UCSF with focused research and clinical work
in neuropsychology at the Memory and Aging Center. She is now a full-time postdoctoral
fellow at the Center.
During her training at UCSD, she studied cognitive
changes associated with Parkinson’s disease.
She joined the Memory and Aging Center to investigate
executive functioning in patients with neurodegenerative
disease using a component process analysis and
magnetic resonance imaging modalities. UP

Caroline Racine, PhD 
Caroline Racine received her B.A. in Psychology from Boston University, where she completed an honors thesis exploring visual-perceptual deficits in patients with
stroke and traumatic brain injury. From 1997-1999 she worked as a research assistant with Dr. Dan Schacter at Harvard University on studies examining false memories in healthy
aging. Dr. Racine went on to obtain an M.A. and Ph.D. in Clinical Psychology at Washington University in St. Louis, specializing in Neuropsychology and Aging. Her research at
Washington University examined changes in frontal lobe function during healthy aging using both behavioral and neuroimaging methods (e.g., fMRI). She completed her clinical
internship at Duke University in 2005 and afterward completed a two-year postdoctoral fellowship in Neuropsychology at the Memory and Aging Center.
Currently, Dr. Racine is a
member of the Neuropsychology team that provides clinical and research evaluations for the MAC. Her research interests include white matter contributions to normal aging and
cognition in Parkinsonian disorders such as Dementia with Lewy bodies (DLB). UP

Katherine P. Rankin, PhD PubMed
She received her B.A. in Psychology from Yale
University, where she worked in a psychiatric epidemiology
research unit at Yale School of Medicine. She went on to
obtain a Master’s degree in Theology and Ph.D. in Clinical
Psychology at Fuller in Los Angeles. During her training
she worked at USC researching the effects of estrogen and
cortisol on the brain, and also researched cognition and
social functioning in Klinefelter’s patients at Harbor
UCLA Medical Center. After finishing her internship at the
Martinez VA hospital and UC Davis Medical Center, she came
to the Memory and Aging Center at UCSF to complete a 2-year
post-doctoral fellowship in neuropsychology.
Dr. Rankin is currently an Assistant Professor
in the UCSF Department of Neurology, and works as a neuropsychologist
with the UCSF Memory and Aging Center. Dr. Rankin specializes
in research examining the neuroanatomic changes that can
cause altered personality and social behavior in dementia.
She is the principal investigator on a number of grants that
have allowed her to investigate topics such as the link between
hormones and social behavior, and artistic creativity in
dementia. UP
Indre
Viskontas, PhD 
Indre Viskontas received a Bachelor of Science degree from the University of Toronto and a PhD in Cognitive Neuroscience
from UCLA in 2006. During her training
at UCLA, Dr. Viskontas used high-resolution fMRI
of healthy individuals and recordings of individual
neural activity in patients with epilepsy to map
declarative memory processes in the medial temporal
lobe. Her dissertation has been nominated for the
New York Academy of Sciences Dissertation Award.
She joined the Memory and Aging Center in May of 2006 to study creativity
and memory in patients with frontal and/or temporal
lobar degeneration.
Dr. Viskontas is also a classically-trained
soprano pursuing a Masters of Music degree at the
San Francisco Conservatory of Music and performing
with regional opera companies in the Bay Area.

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