Positive symptoms seem to represent an excess distortion of normal function.

Negative symptoms seem to represent a reduction or loss of normal function

Positive symptoms
Delusions: delusions of being controlled, delusions of persecution and delusions of grandeur

Hallucinations: imaginary voices making critical comments or telling Patients what to do

Inappropriate affect: failure to react with appropriate emotion to positive or negative symptoms

Incoherent speech or thought: illogical thinking, echolalia, peculiar association among ideas, belief in supernatural forces

Odd behavior: difficulty performing everyday tasks, lack of personal hygiene, talking in rhymes, catatonia ( remaining in awkward positions for long time)

NEGATIVE SYMPTOMS

Affective flattening
Alogia
Avolition
Anhedonia

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