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Related Concept Videos

Dissociative Disorders01:27

Dissociative Disorders

Dissociative disorders represent complex psychological conditions characterized by disruptions in consciousness, memory, identity, or perception. These disruptions cause individuals to experience a disconnection from their thoughts, emotions, and memories. The phenomenon is not merely an occasional lapse in attention but a profound alteration in mental functioning that can severely impact daily life.
Dissociative Fugue
A hallmark feature of dissociative disorders is the dissociative fugue...
Dissociative Amnesia01:21

Dissociative Amnesia

Dissociative amnesia is a complex psychological condition that manifests as an inability to recall personal information, often tied to traumatic or stressful events. Unlike general amnesia, individuals with this condition retain the ability to perform routine activities and procedural tasks, such as operating a phone or navigating public transportation, yet experience profound gaps in autobiographical memory. These lapses may encompass significant life events, such as suicide attempts or...
CNS Depressants: Barbiturates and Benzodiazepines01:14

CNS Depressants: Barbiturates and Benzodiazepines

CNS depressants include drugs from the category of barbiturates and benzodiazepines. They are valuable medications for managing anxiety disorders and insomnia. Barbiturates, once used to induce and maintain sleep, have been replaced mainly by benzodiazepines due to barbiturate's toxicity, tolerance, and overdose risks. They interact with GABAA receptors, leading to sedation at low doses and potentially coma and death at higher doses. Phenobarbital, a long-acting barbiturate, possesses...
Dissociative Identity Disorder01:30

Dissociative Identity Disorder

Dissociative Identity Disorder (DID), previously termed multiple personality disorder, is a complex psychological condition characterized by the presence of two or more distinct identities or personality states. Each identity exhibits unique patterns of behavior, voice, and mannerisms and may possess separate memories and emotional responses. The alternating control between identities can result in memory gaps and challenges in recalling daily activities, often exacerbating the individual's...
Nightmares and Night Terrors01:18

Nightmares and Night Terrors

Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares often...
Altered States of Awareness01:06

Altered States of Awareness

Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
The ingestion of substances like stimulants or hallucinogens leads to chemical alterations in the brain that...

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Related Experiment Video

Updated: May 30, 2026

Use of a Psychophysiological Script-driven Imagery Experiment to Study Trauma-related Dissociation in Borderline Personality Disorder
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Sleep normalization and decrease in dissociative experiences: evaluation in an inpatient sample.

Dalena van der Kloet1, Timo Giesbrecht, Steven Jay Lynn

  • 1Department of Clinical Psychological Science, Faculty of Psychology and Neuroscience, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands. Dalena.vanderkloet@maastrichtuniversity.nl

Journal of Abnormal Psychology
|August 17, 2011
PubMed
Summary
This summary is machine-generated.

Reductions in narcoleptic experiences, not insomnia, correlate with decreased dissociative symptoms in patients. Improving sleep may help treat or prevent dissociation, supporting theories of sleep-wake cycle disruption.

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Area of Science:

  • Psychiatry
  • Sleep Medicine
  • Clinical Psychology

Background:

  • Dissociative symptoms are often linked to sleep disturbances.
  • The specific relationship between different sleep experiences and dissociation requires further investigation.

Purpose of the Study:

  • To examine the longitudinal relationship between sleep experiences and dissociative symptoms in an inpatient sample.
  • To determine if specific types of sleep improvements are more strongly associated with reductions in dissociation.

Main Methods:

  • Longitudinal study design with assessments at admission and discharge (6-8 weeks later).
  • Mixed inpatient sample at a private clinic.
  • Hierarchical regression analyses and structural equation modeling were employed.

Main Results:

  • A significant link was found between sleep experiences and dissociative symptoms.
  • Decreases in narcoleptic experiences, rather than insomnia, were specifically associated with reduced dissociation.
  • Sleep improvements generally reduced psychopathology, but this did not fully explain the specific effect on dissociation.

Conclusions:

  • Findings support the hypothesis that sleep-wake cycle disruptions contribute to dissociative experiences.
  • Targeting narcoleptic experiences through sleep interventions may be beneficial for treating dissociation.
  • Sleep hygiene practices could play a role in preventing or managing dissociative symptoms.