Classification and Diagnosis of Schizophrenia

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Last updated: December 19, 2023

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First submitted	December 4, 2023
Times taken	6
Average score	26.7%
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Hint	Answer
What is it ?	psychotic mental disorder
	where patients cant distinguish between reality and their own imagination
Study	Rosenhan 1973
	older version of dsm
DSM	diagnostic and statistical manual
	two symptoms must be present
	one must be positive
	duration of at least 6 months
	significant social dysfunction
ICD	international classification of disease
	two or more symptoms
	either positive or negative
	duration of 1 month
ICD 11	aim to harmonise with dsm 5
	used since january 2022
Positive symptoms	additions to original behaviour
	hallucinations
	seeing or hearing things which arent there
	delusions
	false beliefs
	disorganised speech
Negative symptoms	loss of usual abilities
	avolition

Hint	Answer
	sharp reduce in motivation
	speech poverty or alogia
	reduction in the amount and quality of speech
A03	issues in diagnosis
	reliability
	cheniaux et al 2009
	validity
	cheniaux found sz is more likely to be diagnosed by the icd
	criterion validity
classification & diagnosis	co morbidity
	two or more conditions occur at the same time
	buckley et al 2009 found that 50% of patients with sz also have depression
	symptom overlap
	two or more conditions share symptoms
	sz and bipolar both include delusions
diagnosis	gender bias
	longenecker et al 2010
	cotton et al 2009
	culture bias
	ethnocentric
	africans more likely to be diagnosed
	dsm includes culture bound syndromes