Staff Psychologist

Anxiety Center


Dr. Bunaciu works with adults in the Anxiety Center.

Dr. Bunaciu completed his undergraduate degree in Psychology at the University of Wisconsin-Milwaukee. He then earned a doctoral degree in Clinical Psychology from the University of Arkansas and completed his pre-doctoral internship at the Alpert Medical School of Brown University. Upon completing his graduate studies, Dr. Bunaciu pursued additional specialized training by completing a postdoctoral fellowship at the Houston OCD Program, where he provided outpatient, intensive outpatient, and residential treatment for individuals with obsessive-compulsive disorder (OCD) and other anxiety disorders.

Dr. Bunaciu has extensive training and experience in the treatment of anxiety-related problems. Prior to joining the Anxiety Center at EBTCS, he provided individual and group-based cognitive-behavioral therapy (CBT) in a wide range of settings, including a specialty anxiety clinic, a college mental health center, a community-based integrated primary care clinic, a VA Medical Center, and a private psychiatric hospital. Dr. Bunaciu specializes in providing exposure-based interventions for individuals suffering from a variety of anxiety disorders including panic disorder, agoraphobia, OCD, social anxiety disorder, specific phobias, posttraumatic stress disorder (PTSD), generalized anxiety disorder, body dysmorphic disorder, and health anxiety. In addition to his primary focus on anxiety disorders, Dr. Bunaciu also has interests in and experience with treatments for depression, sleep disorders, and substance use problems.

Dr. Bunaciu has been committed to the scientist-practitioner model throughout his training, as evidenced by his involvement in a variety of research projects aimed at improving our understanding of risk factors for anxiety disorders and the development of evidence-based treatments for anxiety-related conditions. His research has broadly focused on understanding the development and consequences of escape and avoidance behaviors in an attempt to improve prevention and treatment efforts for individuals at risk for, or suffering from, anxiety. Examples of Dr. Bunaciu’s research include studies examining the role that parental factors play in the development of anxiety-related difficulties in children, as well as studies identifying, disseminating, and delivering evidence-based and cost-effective treatments for anxiety disorders and related conditions.

Dr. Bunaciu is a member of the Anxiety and Depression Association of America (ADAA) and the Association for Behavioral and Cognitive Therapies (ABCT).


Bilsky, S. A., Knapp, A. A., Bunaciu, L., Feldner, M. T., & Leen-Feldner, E. W. (2016). Parental psychological control and adolescent panic symptom frequency. International Journal of Cognitive Therapy, 9, 229-244. doi:10.1521/ijct_2016_09_08

Gaudiano, B. A., Dalrymple, K. L., D’Avanzato, C., & Bunaciu, L. (2016). The need for quality improvement in behavioral health. In W. O’Donohue, & A. Maragakis (Eds.), Quality improvement in behavioral health (pp. 33-54). Cham, Switzerland: Springer International Publishing doi:10.1007/978-3-319-26209-3_3

Blumenthal, H., Cloutier, R. M., Zamboanga, B. L., Bunaciu, L., & Knapp, A. A. (2015). A laboratory-based test of the relation between adolescent alcohol use and panic-relevant responding. Experimental and Clinical Psychopharmacology, 23, 303-313 doi:10.1037/pha0000022

Bunaciu, L., Leen-Feldner, E. W., Blumenthal, H., Knapp, A. A., Badour, C. L., & Feldner, M. T. (2014). An experimental test of the effects of parental modeling on panic-relevant escape and avoidance among early adolescents. Behavior Therapy, 45, 517-529 doi:10.1016/j.beth.2014.02.011

Leen-Feldner, E. W., Feldner, M. T., Knapp, A., Bunaciu, L., Blumenthal, H., & Amstadter, A. (2013). Offspring Psychological and Biological Correlates of Parental Posttraumatic Stress: Review of the Literature and Research Agenda. Clinical Psychology Review, 33, 1106-1133 doi:10.1016/j.cpr.2013.09.001

Bunaciu, L., & Feldner, M. T. (2013). Flexible application of interoceptive and situational exposure-based treatment for an outpatient with multiple anxiety and mood disorders: A comprehensive case study. Clinical Case Studies, 12, 179-198. doi:10.1177/1534650112473518.

Bunaciu, L., & Feldner, M. T. (2013). Panic Disorder. In R. L. Cautin & S. O. Lilienfeld (Editors-in-Chief), Encyclopedia of clinical psychology. Hoboken, NJ, US: Wiley-Blackwell.

Babson, K. A., Badour, C. L., Feldner, M. T., & Bunaciu, L. (2012). The relationship of sleep quality and PTSD to anxious reactivity from idiographic traumatic event script-driven imagery. Journal of Traumatic Stress, 25, 503-510. doi:10.1002/jts.21739

Badour, C. L., Bown, S., Adams, T. G., Bunaciu, L., & Feldner, M. T. (2012). Specificity of fear and disgust experienced during traumatic interpersonal victimization in predicting posttraumatic stress and contamination-based obsessive-compulsive symptoms. Journal of Anxiety Disorders, 26, 590-598. doi: 10.1016/j.janxdis.2012.03.001.

Blumenthal, H., Leen-Feldner, E. W., Knapp, A. A., Bunaciu, L., & Zamboanga, B. L. (2012). Alcohol use history and panic-relevant responding among adolescents: A test using a voluntary hyperventilation challenge. Psychology of Addictive Behaviors, 26, 683-692. doi:10.1037/a0027364

Bunaciu, L., Feldner, M. T., Babson, K. A., Zvolensky, M. J., & Eifert, G. H. (2011). Biological sex and panic-relevant anxious reactivity to abrupt increases in bodily arousal as a function of biological challenge intensity. Journal of Behavior Therapy and Experimental Psychiatry, 43, 526-531. doi:10.1016/j.jbtep.2011.07.001

Badour, C. L., Feldner, M. T., Babson, K. A., Smith, R. C., Blumenthal, H., Trainor, C. D., Bunaciu, L., & Olatunji, B. O. (2011). Differential emotional responding to ideographic cues of traumatic interpersonal violence compared to non-interpersonal traumatic experiences. Journal of Experimental Psychopathology, 2, 400-417

Leen-Feldner, E. W., Feldner, M. T., Bunaciu, L., & Blumenthal, H. (2011). Associations between parental posttraumatic stress disorder and both offspring internalizing problems and parental aggression within the National Comorbidity Survey-Replication. Journal of Anxiety Disorders, 25, 169-175. doi:10.1016/j.janxdis.2010.08.017

Bunaciu, L., Feldner, M. T., Blumenthal, H., Babson, K. A., Schmidt, N. B., & Sachs-Ericsson, N. (2010). A test of the relations between avoidance of panic-related situations and substance use, substance dependence, and depression among subclinical panickers. Behaviour Research and Therapy, 44, 158-163. doi:10.1016/j.brat.2009.001

Blumenthal, H., Leen-Feldner, E. W., Trainor, C. D., Babson, K. A., & Bunaciu, L. (2009). Interactive roles of pubertal timing and peer relations in predicting social anxiety symptoms among youth. Journal of Adolescent Health, 44, 401-403. doi:10.1016/j.jadohealth.2008.08.023

Leen-Feldner, E. W., Blumenthal, H., Babson, K., Bunaciu, L., & Feldner, M. T. (2008). Parenting-related childhood learning history and panic vulnerability: A test using a laboratory-based biological challenge procedure. Behaviour Research and Therapy, 46, 1009-1016 doi:10.1016/j.brat.2008.06.002

Babson, K. A., Trainor, C. D., Bunaciu, L., & Feldner, M. T. (2008). An examination of anxiety sensitivity as a moderator of the relation between sleep anticipatory anxiety and sleep onset latency. Journal of Cognitive Psychotherapy: An International Quarterly, 22, 258-270. doi:10.1891/0889-8931.22.3.258

Himle, M. B., Woods, D. W., & Bunaciu, L. (2008). Evaluating the role of contingency in differentially reinforced tic suppression. Journal of Applied Behavior Analysis, 41, 285-289. doi:10.1901/jaba.2008.41-285

Himle, M. B., Chang, S., Woods, D. W., Bunaciu, L., Pearlman, A., Buzzella, B., Piacentini, J. C. (2007). Evaluating the Contributions of ADHD, OCD, and Tic Symptoms in Predicting Functional Competence in Children with Tic Disorders. Journal of Developmental and Physical Disabilities, 19, 503-512. doi:10.1007/s10882-007-9066-4

Himle, M. B., Chang, S., Woods, D. W., Pearlman, A., Buzzella, B., Bunaciu, L., Piacentini, J. C. (2006). Establishing the feasibility of direct observation in the assessment of tics in children with chronic tic disorders. Journal of Applied Behavior Analysis, 39, 429-440 doi:10.1901/jaba.2006.63-06