Diurnal variation in Cotard's syndrome (copresent with Capgras delusion) following traumatic brain injury.
Journal: 2000/December - Australian and New Zealand Journal of Psychiatry
ISSN: 0004-8674
Abstract:
OBJECTIVE
The aim of this paper is to document regular nocturnal intensification of delusional nihilistic and persecutory ideas (Cotard delusion) linked with extreme depersonalisation and hypervivid dreaming.
METHODS
A 17-year-old man presented with Cotard and Capgras delusions after sustaining multiple cognitive impairments secondary to traumatic brain injury.
RESULTS
Delusional ideation fully resolved within 14 days of commencement of olanzapine 5 mg daily.
CONCLUSIONS
This patient's experience of perceptual abnormalities and impairments in meta-abilities related to self-monitoring and critical inferencing lends support to multicomponent sensory processing accounts of brain injury related, content-specific delusional syndromes.
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