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The Multiscale Dissociation Inventory (MDI) is a comprehensive, self-administered, multiscale instrument developed by Paul F. Dell. [1] It is designed to assess the domain of dissociative phenomena. [2] The MDI measures 14 major facets of pathological dissociation and uses 23 scales to diagnose dissociative disorders. [1] [3]
It contains twenty-eight questions and returns an overall score as well as four sub-scale results. [1] DES is intended to be a screening test, since only 17% of patients with scores over 30 will be diagnosed with having dissociative identity disorder. [2] Patients with lower scores above normal may have other post-traumatic conditions.
The Dissociative Experiences Scale (DES) is a simple, quick, self-administered questionnaire that has been widely used to measure dissociative symptoms. [52] It has been used in hundreds of dissociative studies, and can detect depersonalization and derealization experiences. [53]
Dissociation is commonly displayed on a continuum. [18] In mild cases, dissociation can be regarded as a coping mechanism or defense mechanism in seeking to master, minimize or tolerate stress – including boredom or conflict. [19] [20] [21] At the non-pathological end of the continuum, dissociation describes common events such as daydreaming.
Dissociative disorders are characterized by distinct brain differences in the activation of various brain regions including the inferior parietal lobe, prefrontal cortex, and limbic system. [16] Those with dissociative disorders have higher activity levels in the prefrontal lobe and a more inhibited limbic system on average than healthy ...
To strengthen a single dissociation, a researcher can establish a "double dissociation", a term that was introduced by Hans-Lukas Teuber in 1955. [2] This is the demonstration that two experimental manipulations each have different effects on two dependent variables; if one manipulation affects the first variable and not the second, the other manipulation affects the second variable and not ...
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Dissociation is measured most often by the Dissociative Experiences Scale. Several studies have reported that dissociation and fantasy proneness are highly correlated. This suggests the possibility that the dissociated selves are merely fantasies, for example, being a coping response to trauma.