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Regulating Pathological Neural Connectivity in Posttraumatic Stress Disorder

Project description

A novel treatment for posttraumatic stress disorder

Exposure to a traumatic event often leads to posttraumatic stress disorder (PTSD), a psychiatric illness associated with trauma-related recollections and flashbacks. Emerging evidence indicates that in PTSD certain parts of the brain cannot regulate the generation of hyperactive emotions. Scientists of the EU-funded PTSD Neurofeedback project will investigate a treatment approach that improves the connectivity between emotion regulation and emotion generation regions of the brain. This intervention will be based on a real-time functional MRI and tested in a randomised clinical trial, paving the way towards a new treatment for PTSD.

Objective

Posttraumatic stress disorder (PTSD) is a debilitating and prevalent psychiatric illness that develops after exposure to a traumatic event, and involves symptoms of severe intrusive recollections and flashbacks related to the trauma, hyperarousal and reactivity, avoidance, and negative alterations in cognitions and mood. Indeed, patients with PTSD are characterized by decreased prefrontal cortex (PFC) regulation on hyperactive emotion generation regions, such as the amygdala and brainstem. Real-time fMRI neurofeedback allows for brain regions to be self-regulated through neuroimaging signal feedback. Recently, the experienced researcher has shown that learning to decrease amygdala activation via real-time fMRI neurofeedback leads to a normalization of pathological neural circuitry maintaining PTSD, which was negatively correlated to symptoms. Critically, however, an intervention has not yet been developed to directly target suboptimal connectivity between emotion regulation regions (PFC) and emotion generation regions (amygdala and brainstem), where an urgent need for novel treatment interventions exists particularly among individuals suffering from PTSD. The objective of the current proposal is to determine the treatment efficacy of increasing the strength of connectivity from the PFC to the amygdala and brainstem via a real-time fMRI neurofeedback randomized clinical trial (RCT). Here, connectivity signals will be relayed back to the participant in the scanner as a simple thermometer that changes as directed connectivity between brain regions-of-interest fluctuate. Participants will be asked to self-regulate the neural signal displayed by the thermometer in real-time during PTSD emotion induction paradigms. The proposed study has the potential to develop into a novel treatment for PTSD, and is in line with current European research trends and societal needs to decrease the economic resources required to support mental health treatment.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

(opens in new window) H2020-MSCA-IF-2019

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Coordinator

UNIVERSITAT WIEN
Net EU contribution
€ 174 167,04
Address
UNIVERSITATSRING 1
1010 Wien
Austria
Region
Ostösterreich Wien Wien
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 174 167,04