Postdoctoral Fellows/Associates


Tatiana Vallejo Luces, PhD


David E. Marra, PhD


Tarrah Mitchell, PhD

Tarah MitchellDr. Mitchell is a Clinical Child/Pediatric Psychology Postdoctoral Fellow in the Department of Clinical and Health Psychology at the University of Florida. Dr. Mitchell earned her Ph.D. in Clinical Child Psychology from the University of Kansas in 2018, following a pre-doctoral internship specializing in pediatric psychology at the University of Florida Health Science Center. Dr. Mitchell’s research focuses on understanding the bidirectional relationships among children’s physical, psychological, social, and academic functioning (health-related quality of life) and their weight-related health behaviors, such as disordered eating, physical activity, and sedentary behavior. An additional research line focuses on strategies to accurately assess these concepts and behaviors in youth. Clinically, Dr. Mitchell provides inpatient and outpatient services for children, adolescents, and young adults with chronic medical conditions (e.g., diabetes, cancer, inflammatory bowel disease) within multi-disciplinary environments to address medical adherence, adjustment concerns, and psychological needs.

Eliana Pasternak, PhD


Elia Villalobos Soto, PsyD

Dr. Elia E. Villalobos Soto is a Clinical Health Psychology Postdoctoral Fellow in the Department of Clinical and Health Psychology at the University of Florida. Dr. Villalobos completed her pre-doctoral internship at Eastern Virginia Medical School with specialized training in clinical health psychology.  She earned her doctorate in Clinical Psychology at Carlos Albizu University, Miami Campus (Health Psychology track), where her dissertation explored the psychosocial impact of infertility in infertile women from diverse multicultural backgrounds. Dr. Villalobos completed a master’s degree in neuropsychology at the Autonomous University of Barcelona, Spain where she conducted neuropsychological assessments to patients with dementia and other neurological diseases. Currently, she provides both inpatient and outpatient psychological services to patients with chronic medical conditions and psychiatric disorders. Her main clinical interests are women’s health, cognitive impairment in patients with comorbid medical conditions, multicultural psychology, behavioral medicine, and long-term psychotherapy.

Ming Hwei Yek, PsyD

Dr. Ming Hwei Yek is a Clinical Health Psychology Postdoctoral Fellow in the Department of Clinical and Health Psychology at the University of Florida. Dr. Yek completed her pre-doctoral internship at Indiana University, specializing in Clinical Health Psychology, and received her Psy.D. from Baylor University in 2019. Her dissertation examined the feasibility of using a hypnosis scale (the Elkins Hypnotizability Scale) for therapeutic purposes. Dr. Yek currently provides evaluation and intervention services to patients with needs in transplant, bariatric surgery, and psycho-oncology. Her clinical interests include increasing access to mental health, especially for patients with chronic medical conditions.


Stacey Alvarez-Alvarado, PhD

Dr. Alvarez-AlvaradoDr. Alvarez-Alvarado is a Postdoctoral Associate in the lab of Dr. Woods. Her primary research interest revolves around combating cognitive and physical function decline in sedentary, aging, and diseased individuals. Her initial experiences took part in the Cardiovascular Exercise Physiology laboratory at Florida State University under the mentorship of Dr. Arturo Figueroa. Her master’s degree training included extensive training in vascular exercise physiology (e.g., measurements of endothelial function, arterial stiffness, pulse wave analysis, hemodynamics) and cardiovascular adaptations to aging and exercise training. Subsequently, Alvarez-Alvarado pursued her doctoral degree within the Sport and Exercise Psychology Laboratory at the Florida State University under the mentorship of Dr. Gershon Tenenbaum. Her research centered on the psychological (e.g., cognitive, affective, motivational) mechanisms underlying the linkage between workload and perceived effort. Specifically, the perceptual-cognitive-affective framework describes the dynamics and adaptations of effort-related components when exposed to incremental physical workloads. Alvarez-Alvarado’s current roles in the laboratory include conducting and implementing interventions (tDCS studies), data analysis (neuroimaging and behavioral), and developing interventions to enhance neurocognitive functioning.

Josh Crow, PhD


Aprinda Indahlastari, Ph.D.

aprindaDr. Indahlastari is a Postdoctoral Research Fellow in Dr. Woods lab, Center for Cognitive Aging and Memory (CAM) in the Department of Clinical and Health Psychology. She is a biomedical engineer by training and her research interests are in the fields of neuromodulation and neuroimaging. She received her B.S.  from University of California, San Diego and M.S. from Arizona State University. Dr. Indahlastari earned her doctoral degree from Arizona State University. Her dissertation involved a validation study between human in-vivomeasurements and computational models of a non-invasive brain stimulation technique called transcranial direct current stimulation (tDCS). Her current work is focusing on applications of tDCS coupled with cognitive training to remediate age-associated cognitive decline in older adults. She also incorporates multimodal neuroimaging techniques such as structural and functional MRI to assess cortical structures and any changes in neural efficiency and brain connectivity related to tDCS and cognitive training.

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