Using Heart Rate Variability Biofeedback to Improve Attention and Memory in PTSD+ Combat Veterans

This study will test the effectiveness of Heart Rate Variability (HRV) Biofeedback as a
therapeutic tool in the reduction of everyday memory problems routinely experienced by
combat veterans with Posttraumatic Stress Disorder (PTSD). The study is innovative in three
ways: (1) through its investigation of the clinical use of a novel PTSD treatment
technology, (2) by focusing on the understudied aspect of the daily functioning of PTSD
veterans, and, (3) by investigating a heretofore untested application of biofeedback for
PTSD induced deficits in attention (ATTN) and immediate memory (IM). Though HRV Biofeedback
has proven successful for several applications in the general population, the idea that
deficits in ATTN/IM in combat veterans with PTSD can be remedied by normalization of HRV has
not yet been tested empirically. HRV is functionally incorporated into attentional
processes, essentially operating as an index of autonomic flexibility and the ability to
self-regulate in response to stimulation from the environment. Low HRV occurs in patients
with PTSD, General Anxiety Disorder, and Coronary Artery Disease, and is correlated with
negative affect and hostility. HRV Biofeedback training has been shown to be effective in
increasing HRV in these groups of patients, as well as improving psychological well-being
and physiological function in patients with Depression, Fibromyalgia, and Cardiovascular
Disease. Therefore, the interrelationship between HRV and ATTN/IM problems in PTSD+ Combat
veterans warrants further investigation. If HRV Biofeedback significantly improves ATTN/IM
in these subjects, then it can be offered to VA clinicians treating combat PTSD as an
effective new treatment tool.