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What is Dissociation?

Contents

1.1 The Five Core Symptoms

Dissociation is the state of disconnect between a person and their sensory experiences. It is a very common coping mechanism, functioning to protect the individual from stress, trauma, overstimulation, or understimulation. Dissociation, similarly to plurality, exists on a broad spectrum, encompassing occurences like "highway hypnosis,"^[1] to "spacing out," to dissociative identity disorder. It's been claimed that dissociation is the third most common mental health symptom^[2]. Experiencing dissociation in isolation is not necessarily a sign of disorder.

Dissociation that is severe, long-lasting, or causing distressing memory gaps is considered disabling, and can qualify as a disorder. There are multiple dissociative disorders according to the DSM-5: DID (dissociative identiy disorder), DA (dissociative amnesia), DPDR (depersonalization/derealization disorder), OSDD (other specified dissociative disorder), and UDD/CDD (unspecified/complex dissociative disorder)^[3].

Dissociation can also be found in other disorders such as: PTSD (post-traumatic stress disorder), CPTSD (complex PTSD), ADHD (attention deficit/hyperactivity disorder), MADD (maladaptive daydreaming), BPD (borderline personality disorder), SSD (somatic symptom disorder), FND (functional neurological disorder)^[4][5].

That is all the medical jargon related to dissociation as it is understood in the clinical world. But because the spectrum of dissociation has not been formally studied in its entirety, not having any formal diagnosis of any kind does not mean one cannot be dissociative. Dissociation is also not always a sign of distress or disorder, either.

The Five Core Symptoms

These symptoms are known as the five types of dissociation, which are often majority present in dissociative disorders. Most plurals experience three or more of these types of dissociation a majority of the time.

Dissociative Amnesia, forgetting critical personal information, or forgetting chunks of time that can range from seconds to minutes to decades. Often described as "losing time," or "blacking out," or "spacing out," or "zoning out."
Depersonalization, the disconnection from the self, thoughts, appearance, or body; feeling detached from oneself, seeing onself as an "outsider." Can also be described as "out-of-body" expereinces.
Derealization, feeling detached from one's environment, surroundings, or life. Refers to the sense that one's current surroundings are unreal in some way.
Identity Confusion, feeling as if there is no internal consistency of one's character; acting out of character.
Identity Alteration, feeling a shift in one's feeling of identity or behavior over time. A change in identity that may be observable by others.

Normal vs. Abnormal Symptoms

Please understand that this is not an exhaustive list of symptoms, but a way to compare personal symptoms with what is understood to be normal or abnormal. This comparison shows the difference between normal manifestations of dissociation versus symptoms that can be more severe^[6].

Normal Amnesia

Losing track of time while engaged in watching, reading, concentrating on something.

Lacking many childhood memories before the age of 4 to 5.

Worrying about forgetting something before or during a test, presentation, or speech.

Forgetting where personal items (glasses, keys, jewelry, drinks, phone, etc.) were previously placed.

Experiencing highway hypnosis while driving a routine route; forgetting how one drove home.

Abnormal Amnesia

Feeling as if in a repeating loop; reliving the past.

Having trouble remembering daily activities.

Memory blackouts unrelated to substance use or abuse.

Hours or days passing without any recollection of what occured then.

Forgetting personal information, such as one's birthname, lived name, or date of birth.

Feeling as if pieces, chunks, or sections of one's life are missing.

Feeling as if childhood memories are "hidden away" inside oneself.

Normal Depersonalization

"Going through the motions," or "working on autopilot" through work. Feeling as if one's mind is elsewhere while doing another task.

Briefly feeling disconnected from oneself during traumatic or stressful events.

Briefly feeling disconnected from oneself while under the influence of drugs.

Abnormal Depersonalization

Feeling as if life is a dream, a simulation, or a game.

Purposefully harming oneself to prove the pain is real.

Feeling detached from one's emotions, as if they are capable to be turned off or detached from oneself.

Feeling unable to control one's own behavior, emotions, or actions.

Feeling like a stranger to oneself; the inability to recongize one's own reflection in the mirror.

Seeing onself from a distance, as if an audience watching a movie or a player playing a video game.

Normal Derealization

Briefly feeling as if the world is unreal or unfamiliar during traumatic or stressful experiences.

Briefly feeling as if the world is unreal or unfamiliar while under the influence of drugs.

Abnormal Derealization

Feeling detached from other people.

Wondering what is real and unreal in one's surroundings.

Family, relatives, or surroundings seem unreal.

People or places that should be familiar seem unfamiliar or strange.

Feeling as if people or places are "fading away" or "disappearing".

Being intellectually aware of who relatives are, but feeling as if they are not truly related to oneself.

Normal Identity Confusion

Having imaginary friends as a young child.

Having dififculty with juggling different roles and responsibilities in life.

Experiencing cognitive dissonance when saying or doing something one disagrees with.

Abnormal Identity Confusion

Feeling possessed by another being.

Having no idea what one's beliefs or values are.

Feeling as if one has two different identites for private and public life.

Feeling as if one's identity changes from day to day.

Experiencing a struggle inside oneself about one's true identity.

Having a critical commentary in one's head about oneself and actions.

Feeling as if there are different people inside of one's own head, pulling one in different directions.

Normal Identity Alteration

Acting differently around one's parents, while at work, while with friends, or alone at home.

Having or feeling as if one has a public vs private persona.

Abnormal Identity Alteration

Talking to imaginary friends as an adult.

Not recognizing things that one has written.

Experiencing uncontrollable mood changes.

Temporary changes in manner of speech, vocabulary, octave, accent, or language.

Feeling as if one's own inner child sometimes takes control of one's behavior.

Feeling as if one is living a secret life that even closests friends are unaware of.

Feeling that there are different people inside of oneself, controlling one's behavior or actions.

Citations

Wikipedia Contributors. “Highway Hypnosis.” Wikipedia, Wikimedia Foundation, 9 Mar. 2026, en.wikipedia.org/wiki/Highway_hypnosis. Accessed 25 May 2026.
Reuben, Katherine. “DID Research Homepage.” DID Research, 28 Dec. 2025, did-research.org/. Accessed 24 May 2026.
Reuben, Katherine. “DID Research Homepage.” DID Research, 28 Dec. 2025, did-research.org/. Accessed 24 May 2026.
Pluralpedia Contributors. “Dissociation.” Pluralpedia, 5 Jan. 2021, pluralpedia.org/w/Dissociation. Accessed 24 May 2026.
Reuben, Katherine. “DID Research Homepage.” DID Research, 28 Dec. 2025, did-research.org/. Accessed 24 May 2026.
DID Dictionary, didictionary.carrd.co/#coresymptoms. Accessed 25 May 2026.