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Classification of Schizophrenia - Coggle Diagram
Classification of Schizophrenia
Symptoms:
Type 1 - Positive symptoms:
Delusions of grandeur
Delusions of persecutions
Auditory hallucinations
Type 2 - Negative symptoms:
Speech poverty
Failure to maintain normal posture/Cataleptic stupor
Loss of drive
Avolition
In order to be diagnosed, you must show two or more symptoms for more than one month, along with some change in social functioning
What is Schizophrenia?
A severe mental illness where contact with reality are impaired
An example of psychosis
Chemical imbalance of dopamine in the brain
Around 1% of the population will develop the disorder
Males are most likely to develop the disorder between the ages of 16-25
Women are most likely to develop the disorder in their twenties
Also more common in low socio-economic groups and in urban areas rather than rural areas
Schneider (1959) summarised symptoms using verbal responses and found:
Thoughts and actions are believed to be under external control
Sufferers experience voices, often insulting and obscene, in their head. These can occur along with delusions.
Sufferers experience delusions of grandeur and persecutions. They only experience one type of these delusions.
Found that symptoms were mainly positive
Slater and Roth (1969) added symptoms from observations and found:
Thought disorders: wander off the point, invent new words/phrases, display speech poverty - means they give brief replies to questions without elaborating
Disturbances of effect: can appear uncaring and display inappropriate emotional responses
Psychomotor disturbances and avolition
Found that symptoms were mainly negative