Diurnal Variation in Cotard's Syndrome (Copresent with Capgras Delusion) Following Traumatic Brain Injury

Peter V. Butler

68 citations0/0 files storedAustralian & New Zealand Journal of Psychiatry

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Mental Health and Psychiatry Traumatic Brain Injury Research Hallucinations in medical conditions

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. CLINICAL PICTURE: A 17-year-old man presented with Cotard and Capgras delusions after sustaining multiple cognitive impairments secondary to traumatic brain injury. TREATMENT AND OUTCOME: Delusional ideation fully resolved within 14 days of commencement of olanzapine 5 mg daily. CONCLUSION: 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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1983Capgras' syndrome

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2017A Neuropsychiatric Analysis of the Cotard Delusion 2021The clinical significance of anomalous experience in the explanation of monothematic delusions 2020The ‘dead man walking’ disorder: an update on Cotard’s syndrome

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