What is Dissociation?
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
Abnormal Amnesia
Normal Depersonalization
Abnormal Depersonalization
Normal Derealization
Abnormal Derealization
Normal Identity Confusion
Abnormal Identity Confusion
Normal Identity Alteration
Abnormal Identity Alteration
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.