Functional psychosis mimicking acute confusional state: Longitudinal neuropsychological assessment of an acute and transient psychotic patient

Murai, Toshiya; Toichi, Motomi; Sengoku, Akira

doi:10.1111/j.1440-1819.1996.tb00560.x

Cited by 18 publications

(1 citation statement)

References 6 publications

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“…Lipowski summarized the EEG changes during the acute confusional state, and its characteristics were bilateral, diffuse abnormality, notably slowing of the EEG background; 90 from the definition of acute confusional state, these EEG changes are state indicators. However, these EEG changes are frequently difficult to differentiate from those of functional psychoses 91 . Both the EEG findings and the neuropsychological disorders should be further examined in correlation with the clinical symptoms of acute confusional state, and those are also applied for functional psychoses.…”

Section: The Borderland Of Functional Psychosesmentioning

confidence: 99%

Electroencephalographic findings in functional psychoses: State or trait indicators?

Sengoku

Takagi

1998

Psychiatry Clin Neurosci

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Key wordsThe clinical significance of electroencephalographic (EEG) changes in patients with functional psychoses is not yet clearly defined, particularly whether these changes are state indicators or trait indicators. In the present review, the EEG abnormalities in schizophrenia are discussed. In early EEG studies of schizophrenics, the various specific EEG patterns were suggested to be trait indicators, but those findings were not conflrn1ed. The EEG patterns of some patients with catatonic schizophrenia, especially periodic catatonia, were thought to be episode or state indicators, and some of the patients diagnosed as having atypical psychoses in Japan were suggested to show state indicator EEG fmdings. As the computerized and spectral analyses of EEG have advanced, the contradictory findings ofEEG in schizophrenia have been reported, interpreted as 'hyperstable' or 'hypernorn1Jl' EEG findings and 'hypofrontal' EEG findings (slow waves in the frontal region). However, no conclusion can be made as to whether these EEG findings are state or trait indicators. On the borderland offunctional psychoses, the behavioral changes in temporal lobe epilepsy were described as a trait indicator, and the psychotic states in non-convulsive generalized status epilepticus and acute confusional states were suggested to be state indicators. Further studies of EEG abnormalities in schizophrenia are necessary from multi-dimensional perspectives, including in comparison with the symptomatic psychoses.EEG, functional psychosis, schizophrenia, state indicator, trait indicator.

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Section: The Borderland Of Functional Psychosesmentioning

confidence: 99%

Electroencephalographic findings in functional psychoses: State or trait indicators?

Sengoku

Takagi

1998

Psychiatry Clin Neurosci

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Schizophreniform Disorder and Brief Psychotic Disorder: The Acute and Transient Psychoses

Marneros¹,

Pillmann²

2007

The Spectrum of Psychotic Disorders

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Acute and Transient Psychoses

Marneros

Pillmann

2004

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Brief and acute psychotic disorders with a short duration and a generally good prognosis have long intrigued psychiatrists. Although they are included in internationally accepted diagnostic systems, understanding of these disorders remains minimal. This book is the first comprehensive overview of the clinical features, biology, course and long-term outcome of brief and acute psychoses. The authors review the world literature on the topic and they also present data from their own longitudinal study-the most complete investigation of this group of disorders so far conducted. The book concludes with considerations of the nosological status of brief and acute psychoses and their impact on our understanding of the continuum of psychotic and affective disorders.

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Functional psychosis mimicking acute confusional state: Longitudinal neuropsychological assessment of an acute and transient psychotic patient

Cited by 18 publications

References 6 publications

Electroencephalographic findings in functional psychoses: State or trait indicators?

Electroencephalographic findings in functional psychoses: State or trait indicators?

Schizophreniform Disorder and Brief Psychotic Disorder: The Acute and Transient Psychoses

Acute and Transient Psychoses

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