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Prolonged Exposure PE
An effective trauma treatment that empowers clients to face fears, heal from PTSD, and restore a sense of safety and control.
Introduction
The basics
What is Prolonged Exposure PE?
Prolonged Exposure (PE) Therapy is a behavioral treatment for post-traumatic stress disorder (PTSD). It helps clients gradually confront trauma-related memories and situations in a safe, structured way.
Through imaginal exposure (retelling the trauma story) and in vivo exposure (approaching avoided but safe situations), clients reduce avoidance, build tolerance for difficult emotions, and lessen the distress tied to trauma. PE is typically delivered in 8–15 sessions and has been shown to significantly decrease PTSD symptoms and improve daily functioning.
Goal
What is the goal of Prolonged Exposure PE?
The primary goal of Prolonged Exposure Therapy is to reduce PTSD symptoms by decreasing avoidance behaviors and diminishing the intense emotional distress tied to trauma memories. Through repeated, safe exposure, clients gradually learn that trauma reminders are tolerable and not inherently dangerous.
Over time, PE helps people reclaim parts of their life they’ve been avoiding, restore daily functioning, and improve their sense of safety and control.
Uses
What conditions does Prolonged Exposure PE treat?
Prolonged Exposure primarily treats PTSD and other trauma-related disorders, including:
- Combat trauma
- Sexual assault
- Accidents
- Natural disasters
- Other traumatic experiences
It is also sometimes used for:
- Specific phobias
- Panic disorder with agoraphobia
Subtypes
What are the subtypes of Prolonged Exposure PE?
While there are no fully separate “subtypes” of Prolonged Exposure (PE), there are important adaptations of the standard PE model designed for particular settings or age groups. These include:
- PE-A (Prolonged Exposure for Adolescents): tailored to younger populations (often ages 13–18), this adaptation maintains core elements like imaginal and in vivo exposure, supplemented with psychoeducation and developmental sensitivity.
- PE-PC (Prolonged Exposure for Primary Care): a briefer version adapted for primary care settings, typically delivered over 4–8 shorter (≈ 30-minute) sessions, integrated into general healthcare.
Some emerging formats push even further in flexibility, including massed/intensive PE (compressed delivery over days or weeks) and telehealth formats to increase accessibility.
Effectiveness
Origins
Who developed Prolonged Exposure PE and when?
Prolonged Exposure Therapy was developed by Dr. Edna Foa and her colleagues at the University of Pennsylvania in the 1980s and 1990s. Dr. Foa built on earlier work in exposure therapy and systematic desensitization, specifically adapting these techniques for trauma treatment and creating the structured prolonged exposure protocol that became widely used.
Evidence Base
Is Prolonged Exposure PE evidence based?
Prolonged Exposure Therapy is highly evidence-based and considered one of the most researched and effective treatments for PTSD. It has been validated through numerous studies over several decades, consistently showing significant reductions in PTSD symptoms.
Prolonged exposure is recommended as a first-line treatment by major organizations including the American Psychological Association, the Department of Veterans Affairs, and the World Health Organization, and is included in most clinical practice guidelines for PTSD treatment.
How it works
Techniques Used
How does Prolonged Exposure PE work?
Prolonged Exposure Therapy works by breaking the cycle of avoidance that maintains PTSD symptoms. The process involves several key elements:
- Repeated, controlled exposure to trauma memories and safe but avoided situations, which helps the brain reprocess traumatic experiences and reduce intense fear.
- Habituation, where emotional and physical arousal gradually decline as clients revisit reminders in a safe setting.
- Supportive strategies such as psychoeducation and breathing or anxiety management tools to aid emotional regulation.
- Cognitive change, as clients update beliefs about safety and danger, which helps generalize gains to everyday life.
- In vivo exposures, or approaching avoided real-life situations, which are crucial for transferring improvements from therapy into the real world.
What to expect in a session
What can I expect from sessions in Prolonged Exposure PE?
Early sessions involve psychoeducation about PTSD and treatment planning, while later sessions typically include:
- 30–45 minutes of imaginal exposure (recounting the trauma in detail with eyes closed)
- Discussion and processing with your therapist afterward
- In vivo exposure assignments, where you gradually approach avoided but safe situations between sessions
Sessions are often recorded so you can listen to them as homework to reinforce the exposure work.
It’s important to note that Prolonged Exposure Therapy sessions can be emotionally difficult, especially during imaginal exposure where you’ll recount your trauma in detail. You may experience:
- Increased anxiety or distress
- Physical symptoms of arousal
- A temporary sense of “feeling worse before you feel better”
The in vivo assignments can also feel intimidating at first. However, your therapist will prepare you thoroughly by teaching coping skills and explaining what to expect. You’ll start gradually, at a manageable pace, and most people find their distress levels drop substantially as treatment progresses.
The structured, predictable nature of Prolonged Exposure Therapy helps many clients feel more in control of their recovery. Throughout treatment, your therapist will monitor your progress closely and adjust the approach if needed.
Treatment length & structure
How long does Prolonged Exposure PE typically take? Is there any set structure?
Prolonged Exposure Therapy typically involves 8–15 weekly sessions, each lasting about 90 minutes. The therapy follows a highly structured protocol:
- Sessions 1–2: Assessment and psychoeducation about PTSD and the treatment process
- Sessions 3–4: Introduction of imaginal exposure and in vivo exposure techniques
- Subsequent sessions: Continued exposure work with close monitoring of progress
Each session follows a clear format that includes:
- Specific components and goals
- Homework assignments to reinforce in-session work
- A systematic progression through planned exposure exercises designed to gradually reduce trauma-related distress and avoidance behaviors
Getting care
Finding a therapist
How do I find a therapist who uses Prolonged Exposure PE?
Alma’s directory has many therapists who specialize in Prolonged Exposure PE, including:
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Similar types of therapy
Besides Prolonged Exposure PE, what other types of therapy might be right for me?
If after reading this, you’re not sure if Prolonged Exposure PE is quite the right fit, here are some other types that might be worth looking into:
Exposure and Response Prevention: if avoidance or rituals maintain anxiety
ERP helps people gradually face feared triggers while resisting compulsions or safety behaviors, making it especially relevant for OCD and anxiety patterns.
Cognitive Processing Therapy (CPT): if trauma-related beliefs feel stuck
CPT is a trauma-focused cognitive therapy that helps people identify and rework stuck points about safety, trust, power, esteem, and intimacy.
Trauma-Focused Cognitive Behavioral Therapy (TF-CBT): if a child or teen needs trauma support
TF-CBT combines trauma education, coping skills, gradual narration, and caregiver or family support, often for children and adolescents.
Eye Movement Desensitization & Reprocessing Therapy (EMDR): if trauma memories feel hard to process
EMDR uses bilateral stimulation while processing distressing memories, with the goal of reducing the emotional intensity tied to trauma.
This article was written and medically validated by Drs. Jill Krahwinkel-Bower and Jamie Bower.
FAQs
Prolonged Exposure is primarily indicated for PTSD, particularly for people who have been significantly organizing their lives around avoiding trauma reminders — certain places, people, activities, or thoughts. If avoidance is a central part of your trauma response, PE directly targets it. It's a strong fit if you're willing to engage with difficult material in a structured way, knowing that temporary distress is part of how the treatment works. PE has been validated across many trauma types, including combat, sexual assault, accidents, and natural disasters, and it has a strong evidence base in both veteran and civilian populations.
Yes. Like most forms of therapy, this approach can be delivered effectively online through a secure video platform. A therapist trained in Prolonged Exposure therapy can guide you through controlled exposure to triggers, ensuring that exposure does not stretch beyond your current coping skills. If you're looking for this type of therapy online, you can use this link to find a therapist trained in PE who takes your insurance.
Whether prolonged exposure therapy is covered depends on your individual insurance plan. Most major insurance plans cover therapy when it's provided by a licensed mental health professional, regardless of the type of therapy you choose. What matters more is whether therapy is considered medically necessary given your diagnosis. The best way to find out what you'll pay is to check your plan's explanation of benefits, call the member services number on your insurance card, or use Alma's free cost estimator tool before booking.
Both PE and EMDR are evidence-based, first-line treatments for PTSD, and both help people process traumatic memories. They differ significantly in method. PE works through repeated, sustained imaginal exposure — you recount the trauma aloud, in detail, multiple times within and across sessions — combined with in vivo exposure to avoided real-world situations. EMDR uses bilateral stimulation (eye movements, tapping, or tones) during brief, fragmented recalls of the trauma, and doesn't require detailed verbal narration. Research suggests both are comparably effective for many presentations, though individuals may respond differently to each. A trained trauma therapist can help you weigh the options for your specific situation.
Yes, and it does so with a particularly robust evidence base. PE is designated as a first-line treatment for PTSD by the American Psychological Association, the Department of Veterans Affairs, and the World Health Organization. It's been validated through decades of research involving diverse populations and trauma types. Studies consistently show significant reductions in PTSD symptoms, depression, and anxiety, and many participants no longer meet criteria for PTSD after completing treatment. The gains also tend to be durable, with improvements maintained at follow-up assessments conducted months after treatment ends.
This is one of the most common concerns people bring to PE, and it deserves an honest answer: sessions can be emotionally difficult, particularly during imaginal exposure when you're recounting your trauma in detail. Distress is expected and is part of how the treatment works — repeated exposure, without the usual avoidance or escape behaviors, teaches the nervous system that the memory is survivable. That said, PE is always paced collaboratively. You and your therapist build an exposure hierarchy together, starting with less activating situations and working up gradually. Most people find that the distress decreases meaningfully as they progress, and many describe completing PE as one of the most meaningful things they've done for themselves.
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