Deep Brain Reorienting in Post-traumatic Stress Disorder
Study Details
Study Description
Brief Summary
This study will evaluate the efficacy of a therapeutic treatment, Deep Brain Reorienting (DBR), for PTSD (Post-traumatic Stress Disorder). Participants will be randomized to either the DBR treatment, or wait-list condition.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
This study will evaluate the efficacy of Deep Brain Reorienting (DBR) in reducing PTSD symptoms. DBR was designed by Dr. Frank Corrigan, a Scottish psychiatrist interested in the brain mechanisms underlying effective trauma psychotherapy. For this study, participants will be randomized to either the DBR treatment or wait-list study conditions. Trauma processing through DBR involves bringing up a traumatic memory and encourages the client to focus on tensions arising in the muscles of the shoulders, neck, head and face (i.e., those involved in orienting toward a threatening person/event). It is believed that this approach will allow the participant to process the traumatic memory in an emotionally manageable way, changing how it is represented/accessed in the brain's innate defensive system. Online Stream - Assessments will include clinical interviews (pre/post treatment, and follow-up) using Webex video conferencing, and fMRI (functional magnetic resonance imaging) scans (pre/post treatment). In-Person Stream - Assessment will include clinical interviews (pre/post treatment and follow-up), and fMRI scans (pre/post treatment).
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: DBR Condition Involves 8 weekly sessions of DBR treatment. |
Behavioral: Deep Brain Reorienting (DBR)
Trauma processing through DBR involves bringing up a traumatic memory and encouraging the client to focus on tensions arising in the muscles of the shoulders, neck, head and face (i.e., those involved in orienting toward a threatening person/event). The rationale is as follows: Physiologically, orienting to a stimulus, whether external or in the mind's eye, comes before any affective response to it. Here, it is hypothesized that there is activity in certain midbrain structures , i.e.,Superior Colliculi (SC) and Periaqueductal Gray (PAG). The deep layers of the SC bring on a brief (orienting) tension in the neck as well as preparing for eye movements, which is later followed by the processing of raw affect in the PAG. In session, if we can attend to this tension - even if we have to backtrack from the emotion that follows - we can establish an anchor in the body that precedes the affect and is hypothesized to protect against emotional overwhelm.
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| No Intervention: Wait-list Condition No intervention for approximately 8 weeks. |
Outcome Measures
Primary Outcome Measures
- change in PTSD symptoms from baseline as measured by the Clinician Administered PTSD Scale (CAPS) at post-treatment assessment [8 weeks]
min. CAPS score=0, max=80, with higher scores representing greater PTSD symptoms
- change in PTSD symptoms from post-treatment assessment as measured by the Clinician Administered PTSD Scale (CAPS) at follow-up assessment [3 months]
min. CAPS score=0, max=80, with higher scores representing greater PTSD symptoms
Eligibility Criteria
Criteria
Inclusion Criteria:
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English speaking
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age: 18-65
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meets diagnostic criteria for PTSD (as determined by study assessment)
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may benefit from short-term trauma therapy (as determined by study assessment)
Exclusion Criteria:
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Individuals with any implants, conditions, etc. that do not comply with 7-Tesla (7T) fMRI research safety standards (e.g., certain implants, pregnancy)
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history of significant head injury/lengthy loss of consciousness (e.g., a Glasgow Coma Scale Score < 15 at the time of incident assessed retrospectively by participant)
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significant untreated medical illness
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history of neurological disorder
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history of any pervasive developmental disorder
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history of bipolar disorder
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history of psychotic disorder
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alcohol/substance abuse or dependence within the last 3 months
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extensive narcotic use
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current participation in counselling more extensive than supportive therapy (e.g., exposure therapy, Cognitive-Behavioural Therapy would be an exclusion)
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a degree of mental distress that is unlikely to benefit from a short-term therapy (for our participants' well-being, it will be necessary that we believe it possible to safely address the issues/triggers brought up in treatment within the 8 sessions).
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | London Health Sciences Centre - University Hospital | London | Ontario | Canada | N6A 5A5 |
Sponsors and Collaborators
- Lawson Health Research Institute
- Canadian Institutes of Health Research (CIHR)
Investigators
- Principal Investigator: Ruth A Lanius, MD, PhD, Lawson Health Research Institute
Study Documents (Full-Text)
None provided.More Information
Publications
- Comoli E, Das Neves Favaro P, Vautrelle N, Leriche M, Overton PG, Redgrave P. Segregated anatomical input to sub-regions of the rodent superior colliculus associated with approach and defense. Front Neuroanat. 2012 Apr 3;6:9. doi: 10.3389/fnana.2012.00009. eCollection 2012.
- Corneil BD, Munoz DP, Chapman BB, Admans T, Cushing SL. Neuromuscular consequences of reflexive covert orienting. Nat Neurosci. 2008 Jan;11(1):13-5. Epub 2007 Dec 2.
- Lanius RA, Rabellino D, Boyd JE, Harricharan S, Frewen PA, McKinnon MC. The innate alarm system in PTSD: conscious and subconscious processing of threat. Curr Opin Psychol. 2017 Apr;14:109-115. doi: 10.1016/j.copsyc.2016.11.006. Epub 2016 Nov 26. Review.
- Terpou BA, Densmore M, Thome J, Frewen P, McKinnon MC, Lanius RA. The Innate Alarm System and Subliminal Threat Presentation in Posttraumatic Stress Disorder: Neuroimaging of the Midbrain and Cerebellum. Chronic Stress (Thousand Oaks). 2019 Feb 5;3:2470547018821496. doi: 10.1177/2470547018821496. eCollection 2019 Jan-Dec.
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