Exactly how important abnormalities in personality functioning are in the aetiology and onset of late-life paranoid psychoses is unclear.
Suspected druginduced psychosis, affective psychoses and dual diagnoses are included.
Those with organic psychoses or psychoses linked to major substance misuse were excluded.
This suggests that these dimensions might correspond to discrete pathological conditions within the psychoses.
An alternative approach relevant to genetic studies of complex disorders is to define dimensions of psychoses based on the analysis of symptom profiles in patients.
Psychoanalysis, behaviour therapy, drama therapy, medical treatment of drug withdrawal and chronic psychoses, and feminism are just some of the frameworks adopted.
Parents were excluded if they had chronic alcoholism, drug addiction, brain trauma, or psychoses of toxic origin.
A detailed discussion of these psychoses is given.
