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Flashcards in Shizophrenia Deck (16):
1

What are some positive symptoms of schizophrenia?

- Disorganized thinking, speech
- Delusional beliefs, esp. of grandeur, persecution
- Disturbed perceptions: sensory hallucinations
- Inappropriate emotions, actions

2

What causes shizophrenia

- Dopamine overactivity
- Abnormal brain anatomy, activity; associated genes
- Maternal virus during pregnancy
- Social-psychological influences

3

Schizophrenia

Split of mind from reality
ie. split from one's own thoughts so that they appear as hallucinations

4

Psychosis

Mental split from reality and rationality

5

What are some negative symptoms of schizophrenia?

- Flat effect (emotionless face); inability to read emotions
- Social withdrawal
- Anhedonia (lack of enjoyment)
- Avolition (lack of motivation, focus)
- Alogia (speaking less)
- Catatonia (moving less)

6

Describe the onset, prevalence, an development of schizophrenia

Onset: symptoms typically appear at the end of adolescence / early adulthood; later for women than men
Prevalence: 1 / 100 ppl; more men than women; identical twins are likely to codevelop it
Development: Course of disease can be acute/reactive or chronic

7

Acute / Reactive Shizophrenia

Some ppl develop positive schizophrenia symptoms (eg. hallucinations) as a rxn to stress
- recovery is likely

8

Chronic / Process Schizophrenia

Slow development of schizophrenia symptoms, esp. negative ones (eg. flat effect, social withdrawal)
- no real cure, but can suppress symptoms for certain periods

9

Paranoid Schizophrenia

Subtype of schizophrenia
Plagued by hallucinations and delusions
- negative messages
- delusions of grandiose / persecution

10

Disorganized Schizophrenia

Subtype of schizophrenia
Primary symptoms:
- flat effect
- incoherent speech
- random behavior

11

Catatonic Schizophrenia

Subtype of shizophrenia
Rarely initiating / controlling movement
- copies others' speech, actions

12

Undifferentiated Schizophrenia

Subtype of schizophrenia
Many varied symptoms (?)

13

Residual Schizophrenia

Subtype of schizophrenia
Withdrawal continues after disappearance of positive symptoms

14

What's going on in the brain in schizophreniacs?

Too much dopaminergic receptor activation affecting the thalamus
- leads to paranoia, hallucinations
Poor coordination of frontal lobes
General shrinking of brain, neural connections

15

What are some biological risk factors affecting early development of schizophrenia?

Low birth weight, famine, O2 deprivation
Maternal diabetes, maternal virus mid-pregnancy, maternal schizophrenia; older paternal age
Flu epidemics near birth

16

What are some social-psychological factors that affect development of schizophrenia?

Stress
Early separation from parents
Short attention span; disruptive / withdrawn behavior
Emotional unpredictability
Poor peer relations, solitary play