A large amount of research has been devoted during the past 15 years to the clinical and neurobiological aspects of the disorder named as'late paraphrenia (LP) in 1955.
The symptomatology and diagnosis of the disorder, its prognosis, the cognitive functioning of those affected, the structural changes in the brain as revealed by modern techniques of brain imaging and its postmortem neuropathology have all been submitted to investigation.
The results have been widely regarded as consistent with the concept of LP as an organic disease of the brain, but increased knowledge of the neurobiology of schizophrenia and of the age-related changes that occur in the brains of elderly people casts doubt on the validity of this interpretation.
The findings are consistent with the view that LP is the form in which schizophrenia is manifest in old age.
The proposal that LP has a closer kinship with affective disorder than with schizophrenia is part of a general theory of the sex differences in schizophrenia.
In LP it becomes entangled with the organicity hypothesis, suggesting that neither of these explanations is adequate, and most of the evidence points to a unitary concept which views LP as a variant of a single disorder, namely schizophrenia, which, however, requires a broad definition.
This concept has implications for fresh paths of enquiry.
Mots-clés Pascal : Schizophrénie, Paraphrénie, Trouble mental organique, Forme clinique, Symptomatologie, Age apparition, Epidémiologie, Sexe, Délire, Trouble humeur, Article synthèse, Personne âgée, Homme, Psychose, Encéphale pathologie, Système nerveux central pathologie, Système nerveux pathologie
Mots-clés Pascal anglais : Schizophrenia, Paraphrenia, Organic mental disorder, Clinical form, Symptomatology, Age of onset, Epidemiology, Sex, Delusion, Mood disorder, Review, Elderly, Human, Psychosis, Cerebral disorder, Central nervous system disease, Nervous system diseases
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0092017
Code Inist : 002B18E. Création : 31/05/1999.