senile psychosis

psychosis /psy·cho·sis/ (si-ko´sis) pl. psycho´ses   any major mental disorder of organic or emotional origin marked by derangement of personality and loss of contact with reality, with delusions and hallucinations and often with incoherent speech, disorganized and agitated behavior, or illusions. Cf. neurosis.

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alcoholic psychoses  those associated with excessive use of alcohol and involving organic brain damage.

bipolar psychosis  see under disorder.

brief reactive psychosis  an episode of brief psychotic disorder that is a reaction to a recognizable, distressing life event.

Korsakoff's psychosis  see under syndrome.

senile psychosis  depressive or paranoid delusions or hallucinations or other mental disorders associated with degeneration of the brain in old age, as in senile dementia.

symbiotic psychosis , symbiotic infantile psychosis a condition seen in two- to four-year-old children having an abnormal relationship to the mothering figure, characterized by intense separation anxiety, severe regression, giving up of useful speech, and autism.

toxic psychosis  one due to the ingestion of toxic agents or to the presence of toxins within the body.

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senile psychosis

n.

A mental disturbance of old age and related to degenerative cerebral processes.

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senile psychosis,

n an organic mental disorder of aged people resulting from a generalized atrophy of the brain with no evidence of cerebrovascular disease.