Schizophrenia Flashcards
Schizophrenia
a psychotic disorder involving serious impairment of attention, thought, language, emotion, and behaviour
•Coined by Eugen Bleuler
•Affects 1% of people in Canada
What does a diagnosis of schizophrenia require?
Evidence that a person misinterprets reality, and exhibits disordered attention, thought or perception
Delusions
false beliefs, often involving themes of persecution or grandeur, that are sustained in the face of evidence that normally would be sufficient to destroy them
What are two types of dilution?
Dilution of persecution
Dilution of grandeur
Hallucinations
false perceptions that have a compelling sense of reality (typically voices speaking to the patient)
What are 3 types of affects related to schizophrenia?
- Blunted affect: manifesting less sadness, joy and anger than most people
- Flat affect: showing almost no emotion at all
- Inappropriate affect: wrong emotions for the situation
What are the 4 subtypes of schizophrenia in the old DSM-IV-TR ?
Paranoid
Disorganized
Catatonic
Undifferentiated
What is typical for patients in catatonic state (not just for schizophrenia) ?
Striking motor disturbances,
• From muscular rigidity to random or repetitive movements
Catatonics can alternate between stuporous states in which they seem oblivious to reality and agitated excitement during which they can be dangerous to others
What is waxy flexibility?
Catatonics in a stuporous state may exhibit a waxy flexibility in which their limbs can be moulded by another person into grotesque positions that they will then maintain for hours
Type 1 schizophrenia
subtype of schizophrenia characterized by a predominance of positive symptoms
•subtype of schizophrenia characterized by a predominance of positive symptoms
Positive symptoms
- Better prognosis for recovery
* schizophrenic symptoms such as delusions, hallucinations, and disordered speech and thinking
Type 2 Schizophrenia
subtype of schizophrenia characterized by negative symptoms
Negative symptoms
- associated with a long history of poor functioning prior to hospitalization and poor outcome following treatment
- schizophrenic symptoms that reflect a lack of normal reactions, such as emotions or social behaviours
Structural differences (in brain) are more common in what type of schizophrenia?
Negative-Symptom
Brain atrophy
A general loss of deterioration of neurons in the cerebral cortex and limbic systems, together with enlarged ventricles (cavities that contain cerebrospinal fluid)