Schizophrenia intro Flashcards
What classification systems are used for diagnosing schizophrenia?
ICD-10 and DSM-5.
What is the difference in diagnosis criteria between ICD-10 and DSM-5 for schizophrenia?
ICD-10 requires two or more negative symptoms
DSM-5 requires at least one positive symptom.
What are positive symptoms of schizophrenia?
Symptoms that involve the gain of an abnormal function
Hallucinations and delusions.
What are hallucinations in schizophrenia?
Unusual sensory experiences that can relate to real or unreal events and affect any sense.
What are delusions in schizophrenia?
Irrational beliefs, often involving paranoia, persecution, or the idea of being controlled externally.
What are negative symptoms of schizophrenia?
Symptoms involving the loss of normal function, such as speech poverty and avolition.
What is speech poverty in schizophrenia?
A reduction in the amount and quality of speech, sometimes with incoherence or topic changes mid-sentence.
What is avolition?
A lack of motivation to begin or sustain goal-directed activities.
What are Andreasen’s three signs of avolition?
Poor hygiene and grooming
Lack of persistence in work and education
Lack of energy
What percentage of the world’s population experiences schizophrenia?
About 1%.
Who is more commonly diagnosed with schizophrenia?
Men, city-dwellers, and people from lower socioeconomic groups.
