Glossary

Dissociation.

Dissociation is a trauma response involving a disruption in the normally integrated functioning of memory, identity, emotion, body awareness, and perception. It exists on a spectrum from mild and ordinary (zoning out during a long drive) to severe and clinical (dissociative identity disorder). For survivors of long-term abuse, mid-spectrum dissociation is extremely common and often unrecognized.

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Definition

The DSM-5-TR distinguishes several dissociative diagnoses (depersonalization/derealization, dissociative amnesia, dissociative identity disorder), but the underlying phenomenon — the brain disconnecting parts of experience that would normally be processed together — operates on a continuous scale that runs from everyday daydreaming to severe pathology. The clinical concern is not whether dissociation is present (it is, in almost everyone, occasionally) but whether it is disrupting daily functioning, memory, or sense of self.

What it looks like in trauma survivors

Common, sub-clinical forms in survivors of long covert abuse include:

The fragmentation of memory is particularly important in the context of gaslighting. A perpetrator who deliberately undermines the survivor's memory is exploiting a system that is already, under sustained stress, working less reliably than usual. Both processes — the external gaslighting and the internal dissociative fragmentation — converge on the same outcome: the survivor stops trusting their own version of events.

Where this appears on the site

Dissociation is one of the symptom clusters that appears in complex PTSD. Treatment approaches that address it directly — EMDR, Somatic Experiencing, Internal Family Systems — are discussed at recovery/c-ptsd. Bessel van der Kolk's The Body Keeps the Score is a useful general resource on the somatic and dissociative dimensions of trauma.

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