Tic Disorders Clinic & Research Unit Staff
Sabine Wilhelm, Ph.D.
DirectorSabine Wilhelm, Ph.D., is Associate Professor of Psychology (Psychiatry) at Harvard Medical School. Dr. Wilhelm received her Ph.D. in Clinical Psychology in 1995 from the University of Marburg, Germany, and completed her internship and fellowship training in Psychiatry at the Massachusetts General Hospital. She is recognized as a leading researcher in Tourette Syndrome, related Tic Disorders, and Obsessive-Compulsive Disorder (OCD), and has published several studies on the cognitive functioning, prevalence, and treatment outcome of the disorders. Dr. Wilhelm's research is funded by the National Institute of Mental Health, the Tourette Syndrome Association, and the Obsessive-Compulsive Foundation. Dr. Wilhelm has published over 80 articles, reviews, and chapters, and serves on numerous editorial and advisory boards, as well as the Scientific Advisory Board of the Obsessive-Compulsive Foundation, the International Obsessive-Compulsive Cognitions Working Group (OCCWG), and the Tourette Syndrome Association National Behavioral Science Consortium. Her areas of clinical and research interest include the development, maintenance, and treatment outcome of OCD and Tourette Syndrome/Tic Disorders.
Gregory Chasson, Ph.D.
Dr. Chasson received his Ph.D. in Clinical Psychology from the University of Houston in 2008. During graduate school, he trained as a cognitive-behavioral therapist and conducted research on a variety of topics, including the nature and treatment of autism, as well as treatment for child victims of violence. He also received specialized clinical and research experience for two years at The Menninger Clinic’s OCD Treatment Program, training as an extern and Research Coordinator. Dr. Chasson then completed his clinical internship at McLean Hospital, where he continues to collaborate on various research projects with the OCD Institute. As a Clinical and Research Fellow, he is now completing his post-doctoral training in the Department of Psychiatry at Massachusetts General Hospital, serving as both a Project Director for the Longitudinal Family OCD Study and cognitive-behavioral therapist for the OCD and Related Disorders Program. Dr. Chasson also maintains an academic appointment as a Clinical Fellow in Psychology in the Department of Psychiatry at Harvard Medical School.
Anne Chosak, Ph.D.
Anne Chosak, Ph.D., is currently a Clinical Assistant of Psychology (Psychiatry) at Massachusetts General Hospital (MGH). Dr. Chosak received her Ph.D. in clinical psychology from SUNY at Albany in 2000. She received her post-doctoral training at the Obsessive-Compulsive Disorder (OCD) Clinic & Research Unit at MGH and was licensed in 2002. Dr. Chosak’s clinical and research background is in anxiety disorders of adulthood. Her current clinical and research interests and activities involve the OCD spectrum disorders of adulthood, including OCD, Trichotillomania (compulsive hair-pulling), Tourette Syndrome, and related tic disorders. Dr. Chosak also supervises interns for the MGH clinical psychology internship program.
Thilo Deckersbach, Ph.D.
Thilo Deckersbach, Ph.D., is a Staff Psychologist at the Massachusetts General Hospital (MGH) and an Instructor of Psychology at Harvard Medical School. Dr. Deckersbach specializes in the neuropathology and neuroimaging of Tourette Syndrome (TS), related tic disorders, and Obsessive-Compulsive Disorder (OCD). He is currently the Co-Principal Investigator for studies investigating habit reversal versus supportive therapy in the treatment of children and adults with TS and chronic tics. Dr. Deckersbach’s research is funded by the National Alliance for Research in Schizophrenia and Depression, as well as the Clinical Research and Training Program at Harvard Medical School.
publications by Dr. Deckersbach
Jeanne Fama, Ph.D.
Jeanne M. Fama, Ph.D., is a licensed clinical psychologist and the Director of High Risk and Vulnerability Research in the OCD and Related Disorders Program at Massachusetts General Hospital. She is a Clinical Assistant in Psychology (Psychiatry) at Massachusetts General Hospital and an Instructor of Psychiatry at Harvard Medical School. Dr. Fama completed her Ph.D. in Clinical Psychology at Harvard University and her clinical internship at Massachusetts General Hospital/Harvard Medical School. She has received grants to pursue treatment-related, neuropsychological, cognitive, and family-related research in OCD, and has collaborated on several federally funded treatment projects. She has published on OCD-spectrum and Anxiety disorders and serves on the Scientific Advisory Board to the Obsessive-Compulsive Foundation. Dr. Fama also enjoys teaching psychology interns, postdoctoral fellows, and psychiatry residents in training at MGH as well as practitioners involved in the MGH Psychiatry Academy. She sees patients at MGH and in private practice.
Jennifer L. Greenberg, Psy.D.
Jennifer L. Greenberg, Psy.D., is a Clinical and Research Fellow in Psychology (Psychiatry) at the Massachusetts General Hospital/Harvard Medical School. Dr. Greenberg received her Psy.D. in Clinical Psychology from Rutgers, the State University of New Jersey, and completed her clinical internship at Massachusetts General Hospital/Harvard Medical School in 2008. Dr. Greenberg's clinical and research background is in anxiety and body image disorders, with a focus on the cognitive behavioral treatment of obsessive-compulsive spectrum disorders, including obsessive compulsive disorder (OCD), body dysmorphic disorder (BDD) and eating disorders. She began her research involvement with OCD and related disorders in 2001, and she has worked on several studies focused on the etiology, maintenance and treatment outcome of OCD spectrum disorders. Dr. Greenberg's primary research interest resides in treatment development and outcome of OCD spectrum disorders in pediatric populations. She is also interested in dissemination of empirically-supported treatments and patient and therapist factors that influence treatment outcome. Dr. Greenberg is currently involved in various neuroimaging and treatment studies for patients with OCD, BDD and tic disorders through the MGH OCD and Related Disorders Program. She also sees patients through the Adult Outpatient Department CBT Program and OCD clinic at MGH.
publications by Jennifer Greenberg
Luana Marques, Ph.D.
Luana Marques, Ph.D., is a Clinical Research Fellow in Psychology (Psychiatry) at the Massachusetts General Hospital/Harvard Medical School. Dr. Marques completed her Ph.D. in Clinical Psychology at SUNY at Buffalo and her clinical internship at Massachusetts General Hospital/Harvard Medical School in 2007. Dr. Marques' clinical and research background is in anxiety disorders and romantic relationships. Dr. Marques' primary research interest is the interplay between diversity and psychopathology. Specifically, Dr. Marques' research interests involve developing and testing Cognitive Behavioral interventions that are culturally sensitive for individuals suffering from various anxiety disorders.
Jennifer Ragan, Ph.D.
Jennifer Ragan received her Ph.D. in Clinical Psychology from the University of Texas at Austin in 2005. There, Dr. Ragan received extensive training in cognitive-behavioral therapy and provided supervision to junior clinicians through Dr. Michael Telch's Anxiety Research Lab at the University of Texas at Austin. She then completed her clinical internship and post-doctoral training through Massachusetts General Hospital-Harvard Medical School. Dr. Ragan is now a licensed psychologist and sees patients through the OCD clinic at Massachusetts General Hospital and in private practice. Her clinical interests are broad, in that she treats patients suffering from anxiety, mood, and eating disorders using both individual and group modalities. Her research interests center around the assessment and treatment of anxiety disorders, Obsessive Compulsive Disorder, Body Dysmorphic Disorder, and Tourette Syndrome/tic disodersthrough Dr. Sabine Wilhelm's research lab.
Jedidiah Siev, Ph.D.
Jedidiah Siev, Ph.D, is a Clinical Fellow in Psychology (Psychiatry) at the Massachusetts General Hospital/Harvard Medical School. As a graduate student at the University of Pennsylvania, he received specialized training in empirically-supported treatments for OCD and related disorders, as well as other anxiety and internalizing disorders. Broadly speaking, Jed is interested in the roles of cognitive and family factors in the development and maintenance of internalizing disorders, especially OCD and related disorders, as well as psychotherapy outcome research investigating the contributions of active ingredients and common factors. Within the domain of OCD specifically, Jed’s research focuses on judgment and decision making processes relevant to symptoms, the roles of cognitive and meta-cognitive correlates of OCD, and issues relevant to the treatment of scrupulosity, an OCD presentation characterized by moral and/or religious fears.
Hannah Reese, M.A.
Hannah E. Reese, M.A. received her masters in clinical psychology from Harvard University where she is currently pursuing her Ph.D. She has been at MGH since 2002 where she has served as project coordinator or study therapist for studies on the etiology, maintenance, and treatment of OCD, BDD, Tourette Syndrome, chronic tic disorder, and social phobia. Ms. Reese's primary research focus is in assessing the information processing biases that may be involved in the development and maintenance of Body Dysmorphic Disorder.
Statistician
Aparna Keshaviah, M.S.
Aparna Keshaviah holds a Master’s in Biostatistics from the Harvard School of Public Health and is a Fulbright scholar. With over 8 of experience in clinical investigation, she has been an integral part of numerous collaborative research teams, having designed, analyzed, and led Phase I-III studies in oncology, alternative medicine, and drug addiction. In addition to a career in biostatistics, Keshaviah is a classical Indian dancer and performs and teaches in Cambridge, MA. Her research into dance integrates scientific methodology with artistic exploration.
Research Coordinators
Eric Jenike, B.A.
Eric Jenike graduated in 2005 from The University of Massachusetts, Amherst with a BA in Biology. Eric has been at MGH since 2005 where he worked in Psychiatric Genetics on projects investigating the genetic predictors of Obsessive-Compulsive Disorder, Schizophrenia, Attention-Deficit Hyperactivity Disorder, and Major Depressive Disorder. Eric is currently assisting Dr. Sabine Wilhelm on a Body Dysmorphic Disorder treatment study. After his time at MGH, Eric hopes to pursue a career in medicine.
Jared Kant, B.A.
Jared Kant graduated from Curry College in 2006 with a BA in English and Creative Writing. Through High School and college, he has worked with the Obsessive Compulsive Foundation in New Haven, CT. Currently, Jared is the author of The Thought That Counts, a book on Obsessive-Compulsive Disorder for Oxford University Press. Jared works as a research assistant at the Body Dysmorphic Disorder Clinic under the supervision of Dr. Sabine Wilhelm. Jared eventually hopes to obtain a joint JD, MSW.
Barbara Rosemberg, B.A.
Barbara Rosemberg graduated from the University of Massachusetts, Amherst with a B.A. in Psychology. Barbara has been with the Partners Healthcare for the past 3 years. She previously worked at the Intensive Physiological Monitoring Unit at Brigham and Women’s Hospital as an On-Call Supervisor and Instructor for the Center for Clinical Investigation. Currently, Barbara is working in the Body Dysmorphic Disorder Clinic as the Program Manager.
Theresa Rowley, B.A.
Theresa Rowley graduated in 2008 from Boston University with a BA in psychology. At Boston University Theresa worked at the Center for Anxiety and Related Disorders. She assisted on research projects related to sleep disturbance and anxiety. Currently, Theresa is working on the Longitudinal Family OCD Study examining OCD in families. After working in the OCD Clinic, Theresa hopes to pursue a career in clinical psychology.
Tracy Singer , B.A.
Tracy Singer graduated in 2008 from University of North Carolina- Chapel Hill with a Bachelor’s in psychology. While at UNC, Tracy worked on research projects related to OCD and became interested in similar anxiety disorders. Currently, Tracy assists on a study for Obsessive Compulsive Disorder under the supervision of Dr. Sabine Wilhelm. After her time at MGH, she hopes to pursue a doctorate degree in clinical psychology.
Caitlin Taylor, B.A.
Caitlin Taylor graduated in 2008 from Middlebury College with a B.A. in psychology. At Middlebury, Caitlin worked as a research assistant on the Children's Memory Project. For her honors thesis, she examined the factors associated with children's credibility as eyewitnesses. At MGH Caitlin is working at the Body Dysmorphic Disorder clinic under the supervision of Dr. Jen Greenberg. Additionally, she will be working with Dr. Nancy Keuthen on treatment studies for trichotillomania. Caitlin plans to attend graduate school in clinical psychology.
Kaitlyn Welsh, B.A.
Kaitlyn Welsh graduated from Boston University in 2008 with a B.A. in Psychology. While at Boston University, Kaitlyn worked as a research assistant at the Center for Anxiety and Related Disorders with Dr. Michael Otto on several stress related studies. Currently, Kaitlyn is working with Dr. Wilhelm on the Longitudinal Family OCD Study. After working at the OCD Clinic, Kaitlyn plans to pursue a doctorate in Clinical Psychology.
© 2006 Massachusetts General Hospital