Is Somatic Experiencing Evidence-Based?
Empirical research has shown that SE® can be an effective therapy for treating trauma. Randomized controlled trials (RCTs) are typically considered the gold standard of research and are often used to test the effectiveness of therapies before applying them to wider populations. In the case of SE®, there are only a few documented RCTs.
An RCT conducted by Brom and colleagues (2017) indicated that after participating in 15 weekly sessions of SE®, participants reported a significant decrease in the severity of PTSD symptoms and depression.
Another RCT developed by Andersen and collaborators (2017) compared treatment as usual with SE® in addition to traditional treatment for PTSD and chronic pain. They found that participants in the SE® group reported a significant reduction in the amount of PTSD symptoms and fear of movement. Additionally, both treatment groups reported a significant decrease in pain and disability.
Other studies have included a treatment group with a waiting-list control group to compare the impact of SE® without randomly assigning participants.
For instance, Leitch, Vanslyke, and Allen (2009) investigated the effectiveness of a brief intervention comprising one to two sessions of SE® in combination with the Trauma Resiliency Model in social service workers who were survivors of hurricanes Katrina and Rita in the U.S.
Findings showed significant increases in resiliency measures and a reduction in PTSD symptoms. Moreover, follow-up measurements suggested that the interventions could buffer against psychological symptoms to a greater extent.
Further studies have not included a control group to compare the intervention with. For example, an exploratory investigation led by Leitch (2007) also explored a brief SE® early intervention with survivors of a tsunami in Thailand. Two-thirds of participants reported a decrease in post-disaster symptoms immediately after the intervention, whereas 90% displayed symptom reduction at the one year follow-up.
Another uncontrolled field study conducted by Parker, Doctor, and Selvam (2008) examined the effects of SE® on tsunami survivors in southern India. Several follow-up measurements showed that participants reported decreased arousal, intrusion, and avoidance symptoms, with 90% reporting a significant improvement or being symptom free after eight months.
SE® studies have been done with survivors or victims of trauma and professionals being trained as SE® practitioners. A longitudinal study conducted by Winblad, Changaris, and Stein (2018) followed professionals in training over a period of three years.
Findings showed significant decreases in somatization and anxiety symptoms and substantial increases in physical and relational wellbeing. These results suggest that SE® training can improve practitioners’ resiliency and have promising implications for other professionals with a high risk of vicarious trauma exposure.
15 Benefits of Somatic Experiencing
The above-mentioned research shows promising evidence supporting the effectiveness of SE®.
Some of the benefits that can be drawn from these studies and literature are:
- Reduced physical and psychological discomfort
- Decreased strain and pain
- Decreased stress
- Decreased negative affect
- Reduced irritability and/or aggression
- Improved concentration
- Higher sense of oneself
- Increased positive affect
- Improved confidence
- Increased hope
- Increased resiliency
- Heightened physical wellbeing
- Improved relationships
- Improved sleeping
- Heightened interest in activities
3 Criticisms of Somatic Experiencing
SE® also presents several limitations that need to be taken into consideration before generalizing these benefits.
Scarcity of published studies
While there is a range of interesting and helpful resources available on the official site of SE®, only a handful have been published in scholarly and scientific journals.
A search on PsycINFO, an online scientific database for articles and books about psychology-related topics, yielded no more than a dozen empirical studies, along with a few dissertations and book chapters.
Although this is only one database, it provides a glance at the scientific literature available on this topic.
Methodological limitations
Since the amount of published research is limited to small sample sizes, specific groups, and diversity in the application of SE®, findings should be considered carefully before being generalized to broader populations.
As Andersen and colleagues (2017) suggest, SE® should be further tested using RCTs with active control groups, such as traditional or other alternative therapies.
For example, a study conducted by Andersen and collaborators (2020) revealed that SE®, as an add-on treatment to traditional physiotherapy, did not produce additional benefits.
Clinical experience and anecdotal evidence
SE® has been applied for over four decades by Peter Levine, and most of the evidence comes from his clinical experience (Levine & Frederick, 1997). Although professional practitioners’ knowledge and experience are highly valuable, this does not ensure that treatment and improvement in clients are necessarily causally related.
Moreover, the application of interventions based on animals’ natural responses to trauma mostly relies on observing animal behavior and anecdotal experience (Payne et al., 2015).
The scientific study of animals living in the wild is challenging, which undermines understanding why and under what conditions this natural response is deployed and when it is not. Understanding this might enable us to comprehend how natural trauma responses in animals can be extrapolated to humans.
What our readers think
Working with Ptsd this knowledge will help me how I support and will help me how I handle my own anxieties.
Great articel, great summary. Can you or anyone provide some recommendations for therapists? Thanks anja
Hi Anja,
Psychology Today has a great directory you can use to find therapists in your local area. Usually, the therapists provide a summary in their profile with their areas of expertise and types of issues they are used to working with.
I hope this helps.
Kind regards,
Julia | Community Manager
What a great, terrific, helpful, informative article! Thank you!
This article was extremely informative regarding Somatic Experiencing. I am looking forward to looking at several of the resources shared in the article.
Thank you!
Hi,
Thank you for a wonderful article! Simple to follow, informative and inspiring.
What really caught my interest was this sentence:
Research on interoception suggests that this sense of the body’s internal state relates to the sense of self and cognitive and decision-making processes, which are affected by trauma (Craig, 2010; Damasio, 2003).
I have searched for the research you are referencing, but can’t seem to find it. Maybe you can help guide me in the right direction?
Hi Linda,
Glad you enjoyed the article! You can find these references as follows:
Craig (2010) – https://doi.org/10.1007/s00429-010-0248-y
(available for free on ResearchGate)
Damasio (2003) – https://doi.org/10.1196/annals.1279.014
(Paid access I think!)
Hope this helps!
– Nicole | Community Manager