Dissociation: when the self fragments to survive

She told me, with a calm that felt more like exhaustion: "Sometimes, when I look in the mirror, I don't recognize myself. I know that is me - but I don't feel it. It's as if I'm floating behind a glass screen, watching."

At other times, "the world feels like a movie. People speak, but it takes me a while to understand what they're saying. As if my brain had a delay."

Depersonalization. Derealization. Clinical names for something that, for her, was the loneliest and most frightening experience of her life. But which, paradoxically, was also what kept her functioning through years of trauma that, without dissociation, would have been unbearable.

What Dissociation Actually Is

Dissociation is a mental process in which the mind's ability to automatically integrate all aspects of identity, memory, and consciousness fails under stress. The person begins to feel disconnected from themselves, and the surrounding environment may seem unreal.

In mild degrees, dissociation is something everyone has already experienced: going on "autopilot" during a long trip, losing track of time while driving, not remembering how you got home. These are benign dissociations - the brain functioning in "autopilot mode" to conserve energy.

In more intense degrees, especially when chronic, dissociation becomes a problem. It is the main manifestation of the dissociative subtype of PTSD.

Depersonalization and Derealization

The two most recognized types:

Depersonalization

Feeling detached from your own mental processes or body. The person feels like an outside observer of themselves - "as if I were outside myself, looking at myself from afar."

It may involve:

• Numbed or absent emotions
• A feeling that your body does not belong to you
• Loss of sense of identity
• Observing yourself "from the outside" (self-observation) involuntarily

Derealization

A persistent feeling that the surrounding environment is unreal. The world seems like a stage, people seem like actors, there is a "membrane" between the person and reality.

It may involve:

• Blurred or distorted vision
• Perception that colors or sounds are altered
• Distortion of sizes or distances
• A feeling of being in a dream

Dissociation as a Survival Mechanism

Dissociation is not a defect - it is a biological response. The brain, faced with a trauma that would be impossible to process in real time, does the only thing it can: disconnect.

This happens in three main circumstances:

1. During the traumatic event

During abuse or intense violence, the mind "leaves the body" - an automatic protective mechanism. The person may remember the event in a fragmented way, as if it were a movie, and only later - sometimes years later - begin to integrate what happened.

2. After the event, in triggering situations

When something reminds the person of the trauma (a smell, a voice, a place), the mind reactivates the dissociative mode. It's as if the "protection room" is opened again.

3. Throughout life, in situations perceived as threatening

In people with chronic trauma (prolonged childhood abuse, for example), dissociation can become the default way of dealing with the world. Not just in specific memories - but as a mode of functioning.

Signs of Dissociation

Signs that someone may be dissociating:

Internal signs (what the person feels)

• Emotional numbness, as if anesthetized
• A feeling of daydreaming while awake
• Dizziness, nausea, disorientation
• Loss of sense of time or space
• Memory gaps or lapses
• A feeling of "missing pieces of time" - seconds, minutes, hours

External signs (visible to others)

• Shallower breathing
• Decreased attention - "vacant stare," glassy eyes
• Dilated pupils
• Pauses in speech, freezing
• Changes in tone of voice
• Appearing "absent," even when physically present

Dissociation and Complex Trauma

Dissociation is one of the central markers of complex trauma (C-PTSD). When a person has experienced prolonged trauma - especially in childhood, when the nervous system was still developing - dissociation becomes the brain's default way of dealing with the world.

People with chronic dissociation often have:

• Difficulty integrating memories into a coherent narrative
• A feeling of having "different parts" or "different states" (which may or may not amount to a dissociative identity disorder)
• Intense and apparently contradictory emotions
• Difficulty maintaining stable relationships
• Increased vulnerability to new traumas

How EMDR Treats Dissociation in Complex Trauma

EMDR (Eye Movement Desensitization and Reprocessing) is one of the most studied approaches for trauma-related dissociation. The principle: the brain has a natural information processing system - which, in chronic dissociation, is functioning in a fragmented way.

Treatment generally follows phases:

1. Stabilization and resource building

Before any memory processing, work is done on building "internal resources" - safe place, protective figure, stop signal. For someone with dissociation, these resources are essential.

2. Gradual memory processing

Instead of confronting the most difficult memory first, work is done in order of complexity - usually from the least intense to the most intense. Dissociation gradually becomes integrated.

3. Integration

Over time, memories become integrated into a coherent narrative. The person can remember what happened without dissociating. The self feels more unified.

4. Present life

With dissociation more controlled, the person can turn toward the present - building bonds, projects, meaning.

"There is no rush. The brain that learned to dissociate can relearn to integrate - but in its own time, with the necessary safety."

How to Support Someone with Dissociation

If you live with someone who experiences dissociation:

• Don't try to "bring them back" by force - this can be invalidating
• Speak in a low voice, at a calm pace, without demanding immediate responses
• Present space and time - "we are here, no rush"
• Use present-oriented grounding: "you are here, in [place], on [date], safe"
• Avoid sudden touching or loud noises
• When the person returns, do a simple check-in: "how are you right now?"

From Fragmentation to Integration

Chronic dissociation is not a life sentence. It is what the brain learned to do to protect itself. But, with time and the right context - therapeutic, relational, social - it can learn new ways of dealing with pain that don't involve fragmenting the experience.

Integration is not forgetting. It is remembering without losing yourself in what was. It is being able to talk about what happened without dissociating. It is building meaning out of what hurt. And - finally - being able to be present.

Dissociation is not a flaw. It is what your brain did to keep you alive. But it can learn to do things differently.

Bringing Together What Was Fragmented

Chronic dissociation is, paradoxically, an act of survival. The brain, faced with the unbearable, fragmented so that at least some part of the person could continue functioning. And, with the right time and the right context, this fragmentation can be reassembled. Not to "go back to how things were" - but to be able to remember without getting lost, to be present without fleeing, to be whole without losing complexity. It takes time. But it is possible.

If you recognized yourself in these words, perhaps it is time to talk. The first step can be simple: an initial conversation, with no commitment, to understand what you are going through and what makes sense right now.

About the author

Dra. Mariana Lage · CRP 01/8814 · Clinical Psychologist

Trauma specialist, trained in EMDR through TraumaClinic / EMDR Brasil and in Brainspotting through the method of Dr. David Grand. Online sessions for Brazil, Brazilians abroad, and English-speaking clients.