Editing Paranoia (section)

==Diagnosis==
In the [[DSM-IV-TR]], paranoia is diagnosed in the form of:<ref>[[American Psychiatric Association]]. ''[[Diagnostic and Statistical Manual of Mental Disorders]]''</ref>
* [[Paranoid personality disorder]]<ref>[[American Psychiatric Association]]. ''[[Diagnostic and Statistical Manual of Mental Disorders]]'' p.690</ref> ({{ICD10|F|60|0|f|60}})
* [[Paranoid schizophrenia]] (a subtype of [[schizophrenia]]) ({{ICD10|F|20|0|f|20}})
* The [[persecutory delusions|persecutory]] type of [[delusional disorder]]<ref>[[American Psychiatric Association]]. ''[[Diagnostic and Statistical Manual of Mental Disorders]]'' p.325</ref> ({{ICD10|F|22|8|f|20}})

According to [[Clinical psychology|clinical psychologist]] P. J. McKenna, "As a noun, paranoia denotes a disorder which has been argued in and out of existence, and whose clinical features, course, boundaries, and virtually every other aspect of which is controversial. Employed as an adjective, paranoid has become attached to a diverse set of presentations, from paranoid schizophrenia, through paranoid depression, to paranoid personality&mdash;not to mention a motley collection of paranoid 'psychoses', 'reactions', and 'states'&mdash;and this is to restrict discussion to [[functional disorders]]. Even when abbreviated down to the prefix para-, the term crops up causing trouble as the contentious but stubbornly persistent concept of [[paraphrenia]]".<ref>McKenna (1997), p.238</ref>

At least 50% of the diagnosed cases of [[schizophrenia]] experience delusions of reference and delusions of persecution.<ref name=Sartorius86>Sartorius, N., Jablensky, A., Korten, A., Ernberg, G., Anker, M., Cooper, JE., & Day, R. (1986). Early manifestations and first-contact incidence of schizophrenia in different cultures. ''Psychological Medicine, 16'', 909 – 928.</ref><ref name=Cutting97>Cutting, J. (1997). ''Principles of Psychopathology : Two Worlds–Two Minds–Two Hemispheres.'' Oxford University Press: Oxford.</ref> Paranoia perceptions and behavior may be part of many mental illnesses, such as depression and dementia, but they are more prevalent in three mental disorders: [[paranoid schizophrenia]], [[delusional disorder]] ([[Persecutory delusion|persecutory type]]), and [[paranoid personality disorder]].