Understanding Dissociation: Types, Symptoms, and Why It Happens
When most people hear the word dissociation, they picture dramatic scenes from movies or assume it only refers to Dissociative Identity Disorder (DID). In reality, dissociation exists on a spectrum and is a common way the brain protects itself during overwhelming stress or trauma.
Many people who have experienced trauma, chronic stress, childhood neglect, or abuse may dissociate without realizing that's what's happening. Dissociation is not a sign of weakness or something you're choosing to do. It's an adaptive survival response that helps the nervous system cope when experiences feel too overwhelming to process in the moment.
Understanding the different ways dissociation can show up is often the first step toward healing.
What Is Dissociation?
Dissociation is a disruption in the normal integration of thoughts, emotions, memories, identity, or awareness. It can range from mild experiences—like becoming completely absorbed in a book—to more significant symptoms that interfere with daily life.
Not everyone who experiences dissociation has a dissociative disorder. Many people experience dissociative symptoms during periods of extreme stress, following trauma, or alongside conditions such as PTSD and Complex PTSD.
Types of Dissociation
1. Dissociative Amnesia
Dissociative amnesia involves difficulty recalling important personal information, often related to traumatic or highly stressful experiences. These memory gaps go beyond ordinary forgetfulness.
Someone may remember certain parts of their life clearly while having little or no memory of specific events or periods of time. The brain essentially creates distance from overwhelming experiences as a way to protect itself.
2. Absorption and Imaginative Involvement
Absorption is one of the more common and often overlooked forms of dissociation.
You may become so immersed in your thoughts, imagination, work, a book, television show, or scrolling through social media that you lose awareness of your surroundings. Some people describe functioning on "autopilot" or becoming deeply absorbed in an internal world.
While everyone experiences absorption from time to time, frequent or intense episodes may be more common among individuals with trauma histories.
3. Passive Influence (Ego State Interference)
Passive influence occurs when different parts of the personality influence thoughts, emotions, behaviors, or speech without a complete shift in identity.
It may feel like:
Suddenly reacting in a way that surprises you
Feeling pulled in different emotional directions
Experiencing abrupt mood changes that seem to come "out of nowhere"
Saying something and wondering, "Why did I respond that way?"
Rather than indicating multiple personalities, these experiences often reflect internal parts of the self that developed to manage different life experiences.
4. Depersonalization and Derealization
These are two of the most recognizable forms of dissociation.
Depersonalization is feeling detached from yourself, as if you're observing your life from the outside or watching yourself in a movie.
Derealization involves feeling as though the world around you is unreal, dreamlike, foggy, distant, or somehow "off."
Although these experiences can feel frightening, they are protective responses from the nervous system and do not mean someone is "going crazy."
5. Dissociated Identity and Ego States
Everyone has different aspects of themselves. You may be one way at work, another with close friends, and another when caring for your children.
For individuals with significant trauma, these different parts—or ego states—can become more separated. Different parts may hold different memories, emotions, beliefs, or protective roles.
It's important to understand that having ego states does not automatically mean someone has Dissociative Identity Disorder (DID). Dissociation exists on a continuum, and many trauma survivors experience internal "parts" without meeting criteria for DID.
Why Does Dissociation Happen?
From a trauma perspective, dissociation is an adaptive survival strategy.
When the brain perceives that an experience is too overwhelming to process, it may temporarily disconnect from thoughts, emotions, sensations, or memories. This allows the person to survive situations that might otherwise feel unbearable.
While dissociation can be incredibly protective during trauma, it can become problematic when it continues long after the danger has passed.
Can Dissociation Be Treated?
Yes.
Trauma-informed therapies, including EMDR (Eye Movement Desensitization and Reprocessing), can help individuals safely process traumatic memories while strengthening present-day awareness and nervous system regulation.
Treatment isn't about forcing memories or eliminating protective parts. It's about helping the nervous system recognize that the danger is over, allowing those protective responses to soften over time.
Final Thoughts
Dissociation is one of the brain's most remarkable survival mechanisms. It develops to protect us—not to harm us.
If you've experienced memory gaps, emotional numbness, feeling detached from yourself, or moments when the world feels unreal, you're not alone. These experiences make sense in the context of what your nervous system has been through.
With the right support, healing is possible. As safety increases, many people find they become more present, connected, and able to experience life without relying on dissociation as often.
At My EMDR LA, I specialize in helping adults heal from trauma, Complex PTSD, anxiety, and dissociation using evidence-based, trauma-informed approaches including EMDR therapy. If you're curious about whether EMDR could help, I'd be honored to support you on your healing journey.
Learn more or schedule a consultation at: https://www.MyEMDRLA.com
Michelle Nosrati, LCSW
Trauma Specialist | EMDR Therapist
Licensed in California & Nevada
Secure Telehealth Services Available
https://www.MyEMDRLA.com