Week 10 - Ch 8 - Dissociative Disorders and Somatic Symptoms (DN) Flashcards
Why are dissociative & somatic symptom disorders covered in the same chapter?
because both are hypothesised to relate to some stressful experience
yet symptoms do not involve direct expressions of anxiety
Learning Goals
- define symptoms of the dissociative and somatic disorders
- summarize current debate regarding etiology of DID
- explain etiological models of the somatic symptom disorders
- describe available treatments for dissociative and somatic symptom disorders
What are the defining features of dissociative & somatic symptoms disorder?
dissociative disorders - disruptions of consciosness, loses track of self awareness, memory & identity
somatic symptoms disorder - bodily symptoms suggesting physical defect/dysfunction. No physiological basis may be found or psychological reaction to symptoms appear excessive
Name the 3 major dissociative disorders
- dissociative amnesia
- depersonalisation/derealisation disorder
- disocciative identity disorder
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Dissociative Amnesia
Lack of conscious access to memory (typically stressful one)
- Fugue subtype = loss of memory for entire past or identity
(used to be a separate classification in DSM-IV, became subtype in DSM-5)
Depersonalization/Derealization Disorder
- alteration in experience of self & reality
(derealization added in DSM-5)
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Dissociative Identity Disorder
- at least 2 distinct personalities
- act indepently of each other
DSM-5 added
(not part of accepted cultural/religious paractice)
Is the memory loss more severe in dissociative amnesia or in its subtype fugue?
fugue
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Is complete recovery possible in Dissociative Amnesia & its subtype Fugue?
If so, does recovery from these disorders differ?
Complete recovery usually occurs in both
Dissociative Amnesia:
amnesia disappears as quick as it began & only small chance of recurrence
Memories not completely lost but can’t be retrieved during the amnesia
Fugue:
Memory loss is more extensive in fugue
Recovery takes varying amounts of time. Full memory of life & experiences return except for those during fugue
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What kind of memories are typically affected in Dissociative Amnesia & Dissociative Fugue?
Explicit memories (requiring conscious recall)
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What is a hotly debated component of Dissociative Disorders
Memory
Memories with emotional power are more salient
Although research has shown even false memories can have painful physiological responses
Repression: is it responsible for failure to report events
if so more severe events should limit recall (not the case)
Recovered memories of Child abuse & highly painful events
- are these memories real, or are they false memories
- therapists suggestion (hypnosis, guided imagery etc)
Getting this wrong :
Injustice to either accused or the accuser
p229-230 Focus on Discovery
Depersonalization/Derealization Disorder
- No disturbance of memory
- suddenly lose/altered sense of self & perception of surroundings
- bizarre sensory experiences
- usually triggered by stress
- not explained by substances, another disorder or medical condition
Derealization added to DSM-5
(refers to sensation that world has become unreal)
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When does Depersonalization/Derealization disorder usually begin?
How does it normally begin & what is its time course?
- adolescence
- begins either abruptly or insidiously
- chronic time course
Wh common symptom of panic attacks may trigger depersonalization?
hyperventilation
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When does Dissociative Identity Disorder usually begin?
Childhood, but rarely diagnosed until adulthood
Which is the most severe and extensive of the dissociative disorders?
How does its recovery compare?
Dissociative identity disorder
recovery is also less complete than the other dissociative disorders
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What are cases of DID sometimes mislabelled as in the popular press?
Why the confusion?
schizophrenia
schizo - splitting away from
however a split into 2 or more separate & coherent personalities is entirely different from symptoms of schizophrenia
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What are some possible explanations in the increase in DID symptoms over time?
- possible that more people are actually experiencing it
or - possible increased diagnosis coincided with DSM-3 (1980’s) inclusion of it (e.g., China DID is not officially recognised - rates are less than one tenth than countries where it is recognised)
- Highly popularised by media e.g., Sybil / Three Faces of Eve
- Therapists suggestions
Describe the two major theories of DID?
Posttraumatic model - some are likely to dissociate in response to trauma
Sociocognitive model - DID result of learning social roles. Alters appear by - therapist’s suggestion, media exposure, cultural influences
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