Understanding Dissociation

This page reflects our understanding of mental health topics as of 2026. If you are reading this at a later date, some details may no longer be current, so please verify anything important against up to date sources. If you notice anything that needs updating, we would welcome you letting us know.

Dissociation is a disconnection between parts of experience that are usually linked, such as thoughts, feelings, sensations, memories, surroundings, or sense of self. It exists on a spectrum. Mild dissociation, like daydreaming or driving somewhere on autopilot, is common and harmless. More intense dissociation, such as feeling unreal, detached from your body, or losing time, often develops as a protective response to overwhelming stress or trauma. When dissociation is frequent and disruptive, it can be part of a dissociative disorder, PTSD, or other conditions. It is understandable and treatable.

What Dissociation Looks Like

Depersonalization. Feeling detached from yourself, as though watching yourself from outside your body.
Derealization. The world feeling unreal, dreamlike, foggy, or distant, as described on the page about feeling detached from reality.
Emotional numbing. Feeling cut off from emotions.
Amnesia. Gaps in memory for periods of time, events, or personal information.
Identity confusion or alteration. Uncertainty about who you are, or in rare cases, distinct identity states.
Zoning out. Losing track of the present during stress.

At work, dissociation may look like losing focus in stressful meetings. In relationships, a person may seem to disappear emotionally during conflict. People often find dissociation hard to describe and may worry they are going crazy, which adds to distress.

Why It Happens

Dissociation is thought to be a survival response. When escape from danger is impossible, the mind can create distance from overwhelming experiences, reducing pain and fear in the moment. This is especially common during childhood trauma, where a child cannot leave. Over time, dissociation can become an automatic response to stress, even when danger is no longer present. It can also be triggered by severe anxiety, panic attacks, sleep deprivation, substance use, and some medical conditions. Some people experience dissociation mainly under stress, while others experience it more constantly.

Dissociation is closely linked with the nervous system's shutdown response. When stress exceeds what a person can manage, the body may move into a freeze or collapse state, reducing awareness of feelings and surroundings. Understanding this can help people see dissociation as protection rather than failure.

Many people who dissociate find it hard to explain what happens, and may only realize later that they "were not really there." Keeping brief notes about when episodes occur, what was happening beforehand, and how long they lasted can help identify patterns. Common triggers include conflict, reminders of past trauma, crowded or overstimulating places, exhaustion, and strong emotions such as shame or fear.

What It Is Not

Not psychosis. People who dissociate usually know their experiences are unusual, while psychosis involves losing touch with reality, such as hallucinations or delusions.
Not always trauma-related. Fatigue, anxiety, and substances can cause dissociation too.
Not a sign of weakness. It is an automatic protective response.
Not usually dangerous in itself, though it can affect safety, such as while driving, and should be taken seriously.
Not the same as ordinary distraction. Clinical dissociation involves distress, loss of time, or feeling unreal.

Sudden new episodes of confusion, memory loss, or feeling unreal, especially with headache, weakness, or changes in speech or vision, should be checked urgently by a doctor. Call 911 in an emergency.

How It Is Assessed and Treated

A psychologist or psychiatrist assesses dissociation through interviews and questionnaires, exploring types, frequency, triggers, and history, and considering PTSD, dissociative disorders, and other conditions. Treatment usually begins with stabilization: grounding skills, understanding triggers, and building safety. Trauma-focused therapy then helps process underlying experiences at a pace that avoids overwhelm. Approaches may include phase-based trauma therapy, cognitive behavioural approaches for depersonalization, and skills from dialectical behaviour therapy.

Getting Support at Pacific Maple Psych Centre

If you often feel disconnected, unreal, or lose time, trauma-informed therapy can help you understand these experiences, build grounding skills, and feel more present in your life.

Pacific Maple Psych Centre offers trauma-informed individual therapy, in Vancouver and virtually across British Columbia.

Book a Session

Common Questions About Dissociation

What does dissociation feel like?

It can feel like being detached from yourself or your surroundings, like things are unreal or dreamlike, emotionally numb, or like losing track of time.

Is dissociation always caused by trauma?

No. Trauma is a common cause, but dissociation can also come from severe anxiety, panic, sleep deprivation, substances, or medical conditions.

What is the difference between depersonalization and derealization?

Depersonalization is feeling detached from yourself or your body. Derealization is feeling that the world around you is unreal or distant.

Is daydreaming a form of dissociation?

Mild dissociation like daydreaming or highway hypnosis is common and harmless. It becomes a concern when it is frequent, distressing, or disrupts life.

Why does my mind check out during stressful conversations?

When stress exceeds your capacity, the nervous system may shift into a shutdown response, reducing awareness to protect you from feeling overwhelmed.

Is dissociation the same as psychosis?

No. People who dissociate usually recognize their experiences as unusual. Psychosis involves losing touch with reality, such as hallucinations or delusions.

What grounding techniques help with dissociation?

Noticing five things you can see, holding something cold, pressing your feet into the floor, naming the date and place, or moving your body can help you return to the present.

Can dissociation cause memory gaps?

Yes. Some people experience gaps in memory for periods of time or events, particularly with more severe dissociation.

What are dissociative disorders?

Dissociative disorders include depersonalization-derealization disorder, dissociative amnesia, and dissociative identity disorder, where dissociation is persistent and disruptive.

How is dissociation treated in therapy?

Treatment usually begins with grounding and stabilization, followed by trauma-focused work at a manageable pace, often using phase-based or skills-based approaches.