Attention A T users. To access the menus on this page please perform the following steps. 1. Please switch auto forms mode to off. 2. Hit enter to expand a main menu option (Health, Benefits, etc). 3. To enter and activate the submenu links, hit the down arrow. You will now be able to tab or arrow up or down through the submenu options to access/activate the submenu links.

PTSD: National Center for PTSD

Quick Links
Veterans Crisis Line Badge
My healthevet badge

Lorig Kachadourian, PhD


Lorig Kachadourian, PhD

Research Psychologist

Clinical Neurosciences Division

See staff directory for contact information.

Academic Appointment

  • Yale University School of Medicine, Assistant Professor of Psychiatry


  • National Center for PTSD, Clinical Neurosciences Division, VA Connecticut Healthcare System, Yale University School of Medicine, Postdoctoral Fellowship, 2015
  • National Center for PTSD, Behavioral Sciences Division, VA Boston Healthcare System, Boston University School of Medicine, Postdoctoral Fellowship, 2012
  • University at Buffalo, State University of New York, Clinical Psychology, PhD, 2010
  • University at Buffalo, State University of New York, Psychology, BA, 1999

Expertise and Interests

  • Anger, Aggression and associated risk factors including trauma exposure, PTSD, and substance use
  • Mindfulness-based interventions to treat anger and aggression
  • Self-aggression, including suicidal behaviors and non-suicidal self-injury

Membership in Professional Societies

  • International Society for Traumatic Stress Studies
  • Association for Behavioral and Cognitive Therapies

Selected Publications

Kachadourian LK, Harpaz-Rotem I, Tsai J, Southwick S, Pietrzak RH. Mindfulness as a mediator between trauma exposure and mental health outcomes: Results from the National Health and Resilience in Veterans Study. Psychological Trauma: Theory, Research, Practice, and Policy. 2021;13(2):223-230.

Kachadourian LK, Lyons R, Davis B, Haller M, Norman S. Trauma-related guilt and posttraumatic stress disorder symptoms in military veterans: The role of psychological inflexibility. Journal of Psychiatric Research. 2021;137:104-110.

Kachadourian LK, Nichter B, Herzog S, Norman SB, Sullivan T, Pietrzak RH. Non‐suicidal self‐injury in us military veterans: Results from the national health and resilience in veterans study. Clinical Psychology & Psychotherapy. 2021.

Kachadourian LK, Tsai J, Harpaz-Rotem I, Southwick SM, Pietrzak RH. Protective correlates of suicidality among veterans with histories of posttraumatic stress disorder and major depressive disorder: Results from the National Health and Resilience in Veterans Study. Journal of Affective Disorders. 2019;246:731-737.

Kachadourian LK, Gandelman E, Ralevski E, Petrakis IL. Suicidal ideation in military veterans with alcohol dependence and PTSD: The role of hostility. The American Journal on Addictions. 2018;27(2):124-130.

PTSD Information Voice Mail: (802) 296-6300
Also see: VA Mental Health