About Us


Note: We will be taking a Ph.D. doctoral student for the Fall of 2019.
Strong candidates have good research/publication experience and an interest in studying underlying memory and learning processes following stressful/traumatic experiences, including PTSD.


Lori A. Zoellner, PhD

University of California, Los Angeles (UCLA)
Ph.D. Clinical Psychology, Minor: Behavioral Neuroscience
M.A. Clinical Psychology, Minor: Behavioral Neuroscience
Rice University
B.A. Psychology and Sociology

Echiverri, A., Jaeger, J., Chen, J., Moore, S., & Zoellner, L. A. (in press). Dwelling in the past: The role of rumination in the treatment of posttraumatic stress disorder. Cognitive and Behavioral Practice.
Keller, S.M., Zoellner, L.A., & Feeny, N.C. (2010). Understanding factors associated with early therapeutic alliance in PTSD treatment: adherence, childhood sexual abuse history, and social support. Journal of Consulting and Clinical Psychology.
Stines Doane, L., Feeny, N.C., & Zoellner, L. A. (2010). Sudden gains in exposure therapy for PTSD. Behaviour Research and Therapy, 48, 555-560.
Eftekhari, A., Zoellner, L. A., & Vigil, S. (2009). Patterns of emotion regulation and psychopathology. Anxiety, Stress, and Coping: An International Journal, 22, 571-586.
Feeny, N. C., Zoellner, L. A., Mavissakalian, M.R., & Roy-Byrne, P.P. (2009). What would you choose? Sertraline or prolonged exposure in community and PTSD treatment seeking women. Depression and Anxiety, 28, 724-731.
Feeny, N.C., Zoellner, L. A., & Kahana, S. (2009). Providing a treatment rationale for PTSD: Does what we say matter? Behaviour Research and Therapy, 47, 752-760.
Zoellner, L. A., Abramowitz, J. S., Moore, S. A., & Slagle, D. M (2009). Flooding. In W. O’Donohue & J. Fisher (Eds). General Principles and Empirically Supported Techniques of Cognitive Behavior Therapy. New York: John Wiley & Sons, Inc.
Zoellner, L.A., Eftekhari, A., Bedard, M. (2009). Psychological models of posttraumatic stress disorder and acute stress disorder. In M. Antony & M. Stein (Eds.), Oxford Handbook of Anxiety and Anxiety Disorders (p. 250-261). New York, NY: Oxford Press.
Zoellner, L. A., Feeny, N. C., & Bittinger, J. (2009). What you believe is what you want: Modeling PTSD-related treatment preferences for sertraline or prolonged exposure. Journal of Behavior Therapy and Experimental Psychiatry, 40, 455-467.
Angelo, F. N., Miller, H. E., Zoellner, L. A., & Feeny, N. C. (2008). “I need to talk about it”: A qualitative analysis of trauma-exposed women’s reasons for treatment choice, Behavior Therapy, 39, 13-21.
Bedard, M. A. & Zoellner, L. A. (2008). The utility of the criteria A1 and A2 stressors in the diagnosis of PTSD. Behaviour Research and Therapy, 46, 1062-1069.
Zoellner, L. A. (2008). Translational challenges with tonic immobility. Clinical Psychology: Science and Practice, 15, 93-101.
Moore, S. A. & Zoellner, L. A. (2007). Overgeneral Autobiographical Memory and Traumatic Events: An Evaluative Review. Psychological Bulletin, Vol 133(3), 419-437.
Zoellner, L. A., Sacks, M. B., & Foa, E. B. (2007). Dissociation and serenity induction. Journal of Behavior Therapy and Experimental Psychiatry, 38, 252-262.
Foa, E., Zoellner, L.A., & Feeny, N.C. (2006). An evaluation of three brief programs for facilitating recovery after assault. Journal of Traumatic Stress, 19, 29-43.
Cahill, S., Zoellner, L., Feeny, N. & Riggs, D (2004). Sequential treatment for child abuse-related posttraumatic stress disorder. Journal of Consulting and Clinical Psychology, 72, 543-548.
The Pediatric OCD Study (POTS) Team (2004). Cognitive-behavioral therapy, sertraline, and their combination for children and adolescents with obsessive-compulsive disorder. Journal of the American Medical Association, 292, 1969 – 1976.
Zoellner, L. A., & Bittinger, J. (2004). On the uniqueness of trauma memories in PTSD. In G. Rosen (ed.), Posttraumatic stress disorder: Issues and controversies. NY: John Wiley, Inc.
Zoellner, L. A., Jaycox, L. A., Watlington, C. G., & Foa, E. B. (2003). Are the dissociative criteria in ASD useful? Journal of Traumatic Stress, 16 (4), 341-350.
Zoellner, L. A., Feeny, N.C., Cochran, B., & Pruitt, L. (2003). Treatment choice for PTSD. Behaviour Research and Therapy, 41, 879-886.
Zoellner, L. A., Sacks, M. B., & Foa, E. B. (2003). Directed forgetting following mood induction in female assault victims with chronic PTSD. Journal of Abnormal Psychology, 112, 508-514.
Feeny, N. C., Zoellner, L. A., & Foa, E. B. (2002). Treatment outcome for chronic PTSD among female assault victims with borderline personality disorder. Journal of Personality Disorders, 16 (1), 30-40.
Foa, E. B., Zoellner, L. A., Feeny, N. C., Hembree, E. A., & Alvarez-Conrad, J. (2002). Does imaginal exposure exacerbate PTSD symptoms? Journal of Consulting and Clinical Psychology,70 (4), 1022-1028.
Zoellner, L. A., Alvarez-Conrad, J. A., & Foa, E. B. (2002). Peritraumatic dissociative experiences, trauma narratives, and trauma pathology. Journal of Traumatic Stress, 15(1), 49-57.
Zoellner, L. A., Sacks, M. B., & Foa, E. B. (2001). Stability of emotions for traumatic memories for acute and chronic PTSD. Behaviour Research and Therapy, 39(6), 671-711.
Zoellner, L. A., Foa, E. B., Brigidi, B., & Przeworski, A. (2000). Are trauma victims susceptible to ‘false memories’? Journal of Abnormal Psychology, 109(3), 517-524.

Medical Director

Richard Ries, MD

Research Fellows and Clinicians

Michele Bedard-Gilligan, PhD, Asst. Professor, Psychiatry
My research interests are in understanding mechanisms of recovery following trauma exposure. I am interested in answering questions that can help us understand “what works for whom” to improve our current prevention and intervention approaches for PTSD and related problems. I also have interests in the overlap of PTSD and substance use, with a particular focus on how alcohol and cannabis use impact recovery following trauma exposure.


Doctoral Researchers and Clinicians

Natalia Garcia, MS
I am interested in the learning processes that underlie maladaptive fear in trauma survivors with PTSD. More specifically, I am interested in fear generalization and deficits in safety cue discrimination as possible explanations for the acquisition and maintenance of maladaptive fear.

Libby Marks, MS
I am interested in studying fear memory processes after exposure to stressful situations or traumatic experiences. More specifically, my research focuses on memory extinction and reconsolidation, and ways in which the effects of fear extinction can be longer lasting and more durable. By studying fear memory processes, I hope to better understand the potential implications for prolonged exposure treatment for individuals with PTSD.

Peter Rosencrans, BA
My research interests include applying principles from dynamical systems science to better understand PTSD etiology, maintenance and treatment. Specifically, I am interested in applying systems-oriented analytic techniques, such as network modeling, to study how elements of PTSD interact with another over time in order to identify drivers of PTSD maintenance and recovery.

Rosemary Walker, MS
I am interested in the overlap between PTSD and depression after trauma. I study how the fear and reward systems interact in approach-avoid conflict situations and how interaction across these systems is associated fear and reward-related psychopathology.

Emma PeConga, BS
My research interests center on the cognitive mechanisms underlying autobiographical and working memory deficits in populations that have experienced trauma, particularly survivors of sexual assault, and how these mechanisms contribute to the maintanence and etiology of PTSD.


Research Coordinators

Heidi Ojalehto, BS
I am interested in understanding the core cognitive processes involved in the development, maintenance, and course of mood and anxiety disorders. More specifically, I am interested in how working memory and cognitive control influence emotion regulation in PTSD and depression.

Ifrah Sheikh, MS
I am interested in minority psychology, specifically the way social structures of oppression can aggravate trauma symptoms or serve as a catalyst in the development of PTSD. I am particularly interested in how experienced microaggressive and structural racism interacts with PTSD in relation to interpersonal functioning, maladaptive coping, and treatment success. My research interests are globally focused on minority groups and vulnerable populations in Western and Eastern societies.