Source : FISH ’S Clinical psychopathology

Hallucinatory syndromes

Hallucinatory syndromes, also termed hallucinosis, refer to those disorders in which there are persistent hallucinations in any sensory modality in the absence of other psychotic features. The main hallucinatory syndromes that are identified are:

alcoholic hallucinosis; these hallucinations are usually auditory and occur during periods of relative abstinence. They may be threatening or reproachful, although some patients report benign voices. Sensorium is clear and hallucinations rarely persist longer than 1 week and are associated with long-standing alcohol misuse organic hallucinosis; these are present in 20−30% of patients with

dementia, especially of the Alzheimer type, and are most commonly auditory or visual. There is also disorientation and memory is impaired.