Margaret Bradley, PhD

Dr. Bradley received her doctorate in Experimental (Cognitive) Psychology from the University of Wisconsin-Madison. She is currently a research professor and the associate director for NIMH Center for the Study of Emotion and Attention. Research interests focus on studying the neural and physiological mechanisms involved in affective and attentional processing in people with and without diagnosable anxiety disorders. Drawing on an animal model of motivation, our lab is mapping the subcortical and cortical neural circuits involved in emotional perception and imagery. In addition to investigating neural processes using fMRI and dense-sensor EEG, we measure autonomic and somatic indices of affective and attentional mobilization, including cardiovascular, electrodermal, electromyographic, eye movement, and other physiological measures. How emotion and attention affect later memory performance, measured in both the brain and body, is another active research area.

Regina Bussing

Regina Bussing M.D., M.S.H.S.

Professor And Chief

Dr. Bussing holds the position of Professor and Chief of Faculty Development in the Department of Psychiatry at UF.

Dr. Bussing received her medical degree from the Justus Liebig University in Giessen, Germany. She subsequently completed her psychiatry residency and child and adolescent fellowship at the University of Florida in Gainesville, as well as a Master of Science degree in health services research from the UCLA School of Public Health.

Dr. Bussing’s research expertise spans mental health services, measure development, pharmaco-epidemiology, psychotherapy intervention, and clinical pharmacology trials research. As NIMH-funded investigator studying, she led studies assessing access and quality of care for attention deficit hyperactivity disorder (ADHD). Dr. Bussing also conducted a double-blind randomized, controlled trial to assess antidepressant medication related activation phenomena in youth with obsessive compulsive disorder (OCD). She was the co-investigator of an NIH funded randomized clinical trial assessing preschoolers’ response to a non-medication intervention for ADHD, Parent Child Interaction Therapy (PCIT). Furthermore, she collaborated on several other pivotal NIH funded children’s mental health services studies and served as principal investigator on multiple pediatric clinical psychopharmacology trials for ADHD, depression, PTSD, panic disorder and Tourette syndrome. More recently, Dr. Bussing collaborated as clinical lead on measure development for the CMS inpatient psychiatric facilities (IPF) quality program, including an IPF-specific readmission measure.

Dr. Bussing has served as reviewer and chair for multiple NIH and CDC study sections and on advisory boards for several organizations, including Children and Adults with Attention-Deficit/Hyperactivity Disorder (CHADD), PCIT International and the National Alliance on Mental Illness (NAMI).

KCSKimberlee Campbell-Smith, MPH, MS

Kimberlee is a decorated U.S. Army war veteran with over 15 years of professional service in health promotion programming. Focused in chronic disease management and social and emotional health conditions. She has accomplished her work through developing program design, marketing and sales strategies, operations management and evaluation of effective service delivery. Kimberlee’s ability to develop and facilitate training and development opportunities, coach and consult executives, staff, community leaders and volunteers has supported her ability to further business goals. Her professional experience has taken her to various settings including managed care, clinical, government, non-profit, and education. Linking experience with the performing arts and with her work duties has allowed her to excel in public speaking, teaching, coaching and sharpening her entrepreneurial mindset. Kimberlee holds a Bachelors of Science in Kinesiology from Temple University. Served in the U.S. Army as a Mental Health Specialist supporting Operation Enduring Freedom and Operation Iraqi Freedom (2001-2005). Masters in Public Health from Florida International University. Her professional coach credentialing is from the International Coach Federation trained at Duquesne University in Pittsburgh, PA. Kimberlee recently completed the Masters of Science in Entrepreneurship program at Warrington College of Business. Class of 2017.

Amir Erez

Amir Erez, PhD

Dr. Erez earned his Ph.D. and M. S. at the Industrial and Labor Relations School at Cornell University. He attended the Hebrew University of Jerusalem where he earned his B. A. in Business Administration and Philosophy and an M. A. in Philosophy. His research focuses on how positive moods and positive personality, influence individuals thought processes, motivation, and work behaviors. Dr. Erez also investigates how negative work behaviors such as rudeness and disrespect affect individuals’ performance and cognition. He has published this research in scholarly journals including Journal of Applied Psychology, Journal of Personality and Social Psychology, Academy of Management Journal, Personnel Psychology, Personality and Individual Differences, Human Performance, and Journal of Organizational Behavior.

Andreas Keil, PhD

Dr. Keil obtained his PhD in Psychology in 2000. He is a current faculty member in NIMH Center for the Study of Emotion and Attention. He studies the way the human brain and body adapt to environmental challenges over time, on the scale of milliseconds, minutes, hours, days, and across the lifespan. Understanding these changes is now considered a hallmark in the behavioral and neural sciences and it holds promises for answering fundamental science questions as well as clinical applications. Dr. Keil’s research program combines basic human neuroscience research with clinical and translational questions, identifying specific mechanisms of Psychiatric and Neurological disorders.  Keil has been particularly interested in changing the way electrophysiological data (for example EEG brain waves) in humans are recorded, analyzed, and interpreted.

Darlene Kertes

Darlene Kertes, PhD

Darlene Kertes is an Associate Professor in the Department of Psychology and is affiliated with the University of Florida Genetics Institute. Dr. Kertes focuses on the antecedents and consequences of stress in health and development. Her research examines the role of life experiences and epigenetic processes on activity of a stress-sensitive neuroendocrine system, the hypothalamic-pituitary-adrenocortical system. Dr. Kertes further studies the genetic and gene-environment interaction effects on stress-related emotional and health outcomes from childhood through adulthood. Dr. Kertes completed a Ph.D. in child psychology from the Institute of Child Development at the University of Minnesota and an NRSA Post-Doctoral Fellowship at the Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University.

Dr. Kertes has received several nationally competitive awards to pursue her work, including awards from the National Science Foundation, Fulbright Foundation, and the National Institutes of Health. Dr. Kertes also served at the National Institutes of Health as a Science and Technology Policy Fellow of the American Association for the Advancement of Science (AAAS) and Society for Research in Child Development (SRCD), where she was involved in launching the Genes, Environment and Health Initiative.

Damon G Lamb

Damon G Lamb Ph.D.

Assistant Professor

Dr. Lamb is an assistant professor of Psychiatry at the University of Florida and a Health Research Scientist at the Brain Rehabilitation Research Center at the Malcom Randall VAMC in Gainesville, FL. He is interested in the complex interaction of autonomics, emotional function and cognition. His undergraduate training was at the University of Maryland in Computer Engineering and Mathematics. He then earned a Master of Science in Computer Science from the University of Chicago and his PhD in Neuroscience from Emory University, where he focused on biophysical computational modeling of autonomic neuronal networks. He conducts clinical-translational research and education in human neuroimaging of psychiatric and related disorders.

Peter J Lang

Peter J Lang Ph.D.

Professor Emeritus

Dr. Peter J. Lang is Graduate Research Professor and Director of the Center for the Study of Emotion and Attention. The Center’s research core is a basic emotion science program, studying cognition & attention in affect processing, that is the foundation for translational studies of patients with anxiety and mood disorders. Current projects–following the NIMH RDoC initiative–aim to define biomarkers that could better distinguish among internalizing disorders, determining their physiological diathesis, and potentially defining more precise targets for treatment. Methods include assessment of cortical circuits (fMRI, EEG), stress hormones, genes, and autonomic & somatic reflexes.

Mark H Lewis

Mark H Lewis Ph.D.


Dr. Lewis joined the Department of Psychiatry in the College of Medicine at the University of Florida in 1992 as an Associate Professor of Psychiatry and Neuroscience. He completed a Bachelor’s in Psychology graduating magna cum laude at Bowdoin College, a Masters in Psychology at Western Michigan University, and a doctorate in Psychology at Vanderbilt University. Dr. Lewis also completed Postdoctoral Training in Neuropharmacology at the University of North Carolina.

Dr. Lewis is currently Associate Chair for research in the Department of Psychiatry, a professor of Psychiatry, Neuroscience and Psychology and the Executive Director of the Center for Autism and Related Disabilities (CARD) at UF.

Dr. Lewis is a highly respected member of some of the most prestigious federal peer review groups including Chair of the NICHD Special Emphasis Panel on Chronic Aberrant Behavior and a member of the NICHD Intellectual and Developmental Disabilities Research Centers, the NIMH ARRA Autism review, and the Department of Defense Autism Research Program. He is also an Ad Hoc reviewer for the National Science Foundation and the National Institutes of Health.

Dr. Lewis is on the External Advisory Board for the Neurodevelopmental Disorders Research Center at the University of North Carolina and the Editorial review Boards for the American Journal on Mental Retardation and the Journal of Mental Health Research in Intellectual Disabilities.

Dr. Lewis is a highly respected teacher and faculty advisor mentoring many students in the field of research. He is the recipient of the Georgia Department of Human Resources Educational Stipend Award, the University of Medicine and Dentistry of New Jersey Exceptional Merit Award and the Frank Porter Graham Innovative Research Award.


Catalina Lopez-Quintero

Catalina Lopez-Quintero

Assistant Professor
Department: Department of Epidemiology

Dr. Catalina Lopez-Quintero is an assistant professor at the Department of Epidemiology at the University of Florida. Dr. Lopez-Quintero is a Colombian medical doctor with a PhD in public health and post-graduate training and research experience in drug dependence and psychiatric epidemiology, drug use neuropsychology, and drug use and HIV/AIDS disparities. Dr. Lopez-Quintero’s research has focused on disentangling the role that factors at different levels of influence (e.g. biological, behavioral, socio-cultural, or political) play on the transitions from the early stages of drug use involvement to the development of drug use disorders and other related outcomes. Through her current research she aims to develop a comprehensive and interdisciplinary insight of the mechanisms that generate and sustain disparities in drug use transitions and trajectories, by focusing on the complex interactions between neuropsychological and socio-cultural and systemic level factors, and accordingly contribute to inform the design of effective drug use prevention and treatment strategies.

Irene A Malaty

Irene A Malaty MD

Barbara Padgett Dein Professor Of Neurology, Director Of Parkinson Foundation Center Of Excellence And Tourette Association Of America Center For Excellence

Dr. Malaty completed medical school at Indiana University School of Medicine before completing neurology residency and movement disorders fellowship at the University of Florida. She devotes her practice to clinical care, research, and education across the movement disorders spectrum. She specializes in the care of Parkinson disease (PD) and is director of a Parkinson Foundation Center of Excellence at UF. She also specializes in Tourette syndrome (TS) in patients of all ages and is director of the Tourette Association of America Center of Excellence at UF. Additionally, she has an active botulinum toxin injection practice treating diverse neurological disorders. Across these key components of her specialty, she takes time to care for individuals with complex motor and non-motor symptoms in a comprehensive manner.

Dr. Malaty has been awarded several teaching awards including University of Florida College of Medicine Exemplary Teacher award and the Clinical Educator of the Year award. She has also been recognized for her expert clinical care with a University of Florida College of Medicine Clinical Outpatient Excellence Award. She has enjoyed lecturing nationally and internationally.

Dr. Malaty is a primary investigator in a number of trials in movement disorders and helps direct the movement disorder trials at UF. As an example, she is leading research at UF to investigate outcomes of varied care in Parkinson patients as part of an international collaboration. She has authored multiple publications and chapters in movement disorders.

In 2017, Dr. Malaty became the first female president of the Florida Society of Neurology, on the 50th anniversary of that organization. She aspires to advocate for improved care and education in neurological disorders through this role and in her national position on the movement disorders subsection of the American Academy of Neurology (AAN). She was selected for the inaugural class of the prestigious Women Leading in Neurology program of the AAN and will continue to devote time and effort to improving the lives of individuals living with neurological disorders.

Michael S Okun

Michael S Okun MD

Chair And Professor Of Neurology

Michael S. Okun is a neurologist, neuroscientist and author. He is the co-founder and director of the Norman Fixel Institute for Neurological Diseases at the University of Florida and is the chair of the Department of Neurology at the University of Florida (2015-current) and the Medical Director/Advisor for the Parkinson’s Foundation (2006-current). He is best known for his work in translating physiological principles underpinning human diseases, such as Tourette syndrome, tremor and Parkinson’s into real-world therapies. He received his M.D. with honors from the University of Florida. He was fellowship trained by Mahlon DeLong, Jerrold Vitek and colleagues at Emory University in Atlanta GA before moving to found the movement disorders program at the University of Florida. The UF institute he co-founded with Kelly D. Foote, M.D. is unique in that it is comprised of over ~100 interdisciplinary faculty members from diverse areas of campus, all of whom are dedicated to care, outreach, education and research. Dr. Okun was instrumental in the construction of a one-stop patient-centered clinical-research experience for national and international patients seeking care at the University of Florida. This change in care and research delivery has since been named the service and science hub model of care. The UF based center draws national and international visitors interested in deploying this innovative clinical-research model. Dr. Okun has served as the Medical Director/Advisor for the Parkinson’s Foundation since 2006 and as the Medical Advisor for Tyler’s Hope for a Dystonia Cure. He has been supported by grants from the National Institutes of Health, the Smallwood Foundation, the Tourette Association of America, the Parkinson Alliance, the Bachmann-Strauss Foundation, the Parkinson’s Foundation, and the Michael J. Fox Foundation. Dr. Okun has an active research career exploring non-motor basal ganglia brain features and holds several NIH grants and foundation grants exploring various aspects of deep brain stimulation and neuromodulation. Dr. Okun has been an integral part of some of the pioneering studies exploring the cognitive, behavioral, and mood effects of brain stimulation and since 2005 his laboratory has been working to uncover the electrical brain signals associated with human tic. He has also partnered with Dr. Ayse Gunduz and Kelly Foote to develop a first generation of closed loop adaptive deep brain stimulation approaches. Okun was named by the University of Florida College of Medicine as the ‘Clinical researcher of the Year’ in 2021. Dr. Okun was the founding PI for the International Database and Public Registry for Tourette Deep Brain Stimulation. He and his group have contributed data to support the FDA approval of several device related approaches now used to treat human disease. Dr. Okun holds the Adelaide Lackner Professorship in Neurology and has published over 400 peer-reviewed articles. He is a poet (Lessons From the Bedside, 1995) and has authored 14 books. One of his book’s, Parkinson’s Treatment: 10 Secrets to a Happier Life, was translated into over 20 languages. Dr. Okun was recognized in a 2015 White House ceremony by the Obama administration as a Champion of Change for Parkinson’s Disease.

Ashley R Ordway

Ashley R Ordway M.Ed./Ed.S., LMHC

Licensed Mental Health Counselor

Ashley Ordway completed her masters and education specialist degree’s in counselor education majoring in Marriage and Family Therapy at the University of Florida. She then continued her training as a registered intern in the Division of Psychology at UF Health. During her clinical training she received specialized training in Cognitive Behavioral Therapy with Exposure Response Prevention and began treating patients with OCD, Anxiety, and Related Disorders across the lifespan.

Ashley is currently the clinical coordinator for the Center of OCD, Anxiety, and Related Disorders and is passionate about bridging the gap between clinical practice and research. Her research interests primarily concern identifying factors that enhance treatment outcome for OCD and anxiety-related disorders.

William M Perlstein

William M Perlstein Ph.D.

Department: Department of Clinical and Health Psychology
Research Summary:

Dr. Perlstein’s research interests include Cognitive Neuroscience, Experimental Psychopathology, Emotion Neuroscience, Anxiety Disorders, Traumatic Brain Injury, Psychophysiology, Functional Neuroimaging.

jpJeffrey Pufahl, MFA 

Jeffrey Pufahl is a full time faculty member in the Center for Arts in Medicine at the University of Florida. Jeffrey holds an MFA in Theater Performance (University of Cincinnati) and an MFA in Theater Directing (University of Victoria) and has 25 years of professional experience in film and theatre in Canada, the US, and the UK. His work at the UF is focused on creating inter-campus and community partnerships to develop theatre-based programming that addresses social issues and community health.  His research focuses on innovative applications of theatre and video to health, social, and educational content in order to engage the public in critical dialogue.

Jeffrey is a Creative Campus Scholar in Residence in the Samuel Proctor Oral History Program and is co-developing a critical oral history performance for social justice program.  His collaborative play Voices from the March documents the 2017 Women’s March on Washington and Trump Inauguration through the eyes of the students who attended.

A faculty affiliate in the Center for STEM Translational Communication, Jeffrey has partnered with health researchers to create several patient education videos translating research through drama.  His most recent project helps families transition into the NICU.

Kay Roussos-Ross

Kay Roussos-Ross M.D.

Chief, ASGOG Associate Professor Medical Director, Women’s Health At Medical Plaza, Associate Professor

Dr. Dikea (Kay) Roussos-Ross is an Associate Professor in the departments of OBGYN and Psychiatry. She joined the faculty of the Department of Obstetrics and Gynecology at the University of Florida College of Medicine in January 2012. Dr. Roussos-Ross is board-certified in Obstetrics and Gynecology, Psychiatry and Addiction Medicine. Her areas of focus include high-risk obstetric patients with co-morbid psychiatric and substance use disorders. Dr. Roussos-Ross’s clinical practice also includes general obstetrics, gynecology and surgical gynecology. Dr. Roussos-Ross is the Chief of the Division of Academic Specialists in General Obstetrics and Gynecology. She is also the Director of Women’s Health at the UF Health Shands Medical Plaza.

Dr. Roussos-Ross completed both her undergraduate and graduate studies at UF, graduating with Research Honors from the College of Medicine and receiving her Doctor of Medicine degree in 2002. Prior to receiving her medical degree, Dr. Roussos-Ross earned a Bachelor of Arts in Sociology, graduating with Highest Honors. She continued with her UF studies in the Physician Assistant Studies Program, receiving a Bachelor of Science in Medicine and a master’s degree in Physician Assistant Studies. Dr. Roussos-Ross first completed a residency in Psychiatry and joined the UF Department of Psychiatry as an Assistant Professor and as the Medical Director of the Adult Inpatient Psychiatry Unit, with a primary area of focus in Perinatal Psychiatry. Following, Dr. Roussos-Ross furthered her interest in women’s health with a second residency in Obstetrics and Gynecology, which she completed in 2012.

Heather Simpson, MOT, OTR/L

Heather graduated with a B.S. in Exercise and Sport Sciences with a minor in Early Education from the University of Florida in 2007.  Following her Bachelor’s degree, Heather received a Master’s in Occupational Therapy, in 2009, from the University of Florida. To complete her education, she obtained her post-professional clinical doctorate from the University of St. Augustine for Health Sciences in 2017. Since completion of graduate school, she has worked in a variety of settings including outpatient neurology, inpatient rehab and outpatient pediatric rehabilitation. In 2014, Heather transitioned to the UF Health Center for Movement Disorders and Neurorestoration to work with both the pediatric and adult populations affected with movement disorders.

John B Williamson

John B Williamson Ph.D.

Associate Professor

Dr. Williamson has worked to both understand mechanism of brain dysfunction in disorders such as TBI,. PTSD and cerebrovascular disease, and to develop applied solutions to the problems that most impact quality of life in individuals that struggle with these issues.

Clinically, Dr. Williamson focuses on adult populations that have questions of neurological contributions to cognitive impairment. This includes patients with cerebrovascular disease (e.g., stroke) and suspected vascular cognitive impairment, traumatic brain injury, and neurodegenerative diseases (e.g., Alzheimer’s disease).

Dr. Williamson is interested in the role of central and peripheral autonomic nervous system interactions in modifying or regulating brain states and behavioral output. He has VA and DOD funding to understand the mechanistic contribution of white matter injuries in key central autonomic inputs from traumatic brain injury and manifestation of symptoms of post traumatic stress disorder, biomarkers (blood) of TBI subphenotypic outcomes, as well as NIH, McKnight Brain Foundation, and VA funding on intervention developments in cognitive dysfunction associated with healthy aging, Alzheimer’s disease, sleep disruption, and PTSD.

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