Delirium then as now is a nebulous construct in medicine and the sciences that make up its theoretical foundation. Previous attempts at a history of delirium have imposed a coherent whole upon the ...

"My elderly mom was admitted to a nursing home a couple weeks ago, and now seems to be hallucinating on and off, especially at night," a patient asked recently. "She has never had any mental illness.

Some conditions, such as delirium, psychotic disorder due to a general medical condition, and substance-induced psychosis, that cause psychotic symptoms in late life are acute and tend to resolve when ...

The terms used to denote delirium, including the word delirium itself, attempt to encapsulate at once the idea that it is a singular entity distinct from other phenomena. But such a word also tries to ...