Schizophrenia - Abnormal
Schizophrenia
Psychotic = lack of reality testing by ego and loss of ego boundaries
“split mind” : fragmented, or lack of connection between thought and affect
I. Symptoms
1. Positive sxs (excesses / distortions of norm. fnct.)
a. Delusions
- bizarre
- of grandeur
- of control
- of reference
- paranoid
b. disorganized thinking & speech
(formal thought disorder)
- loose associations
- derailment
- perseveration
- tangential
- oblique or not related
c. hallucinations
d. inappropriate affect
2. Negative sxs (seriously diminished or lack of normal fnct.)
a. poverty of speech (alogia) – or vacuous (empty) speech
b. blunted or flat affect (anhedonia)
c. loss of volition (avolition) or ambivalence
d. social withdrawal
3. Psychomotor sxs
a. catatonia (can be thought of as + / - sx as well)
- catatonic stupor
- catatonic rigidity
- catatonic posturing
- waxy flexibility
- catatonic excitement
II. Phases of schizophrenia
1. prodromal
2. active
3. residual
III. Dx Schizophrenia
A. 5 types of schizophrenia
prognosis
1. disorganized (old hebephrenic) worst
2. catatonic
3. paranoid best
4. undifferentiated
5. residual
B. Differential Dx
1. schizophreniform
2. schizoaffective
3. brief psychotic
4. secondary to general medical condition (GMC)
5. secondary to substance
6. others (e.g., OCD)
IV. Etiology / Maintenance / Relapse
A. Psychological
a. schizophrenogenic mother
- cold, rejecting, and over-protective
b. double bind communication
c. high levels of expressed emotion (EE)
- criticism / disapproval
- hostility / anomosity
- emotional over-involvement / intrusiveness
B. Biological / Physiological
a. genetic
- polygenic
- schizotaxia predisposition
b. influenza virus during 2nd trimester
c. biochemical
- excessive dopamine (DA)
- antipsychotics are DA antagonists
- stimulants are DA agonists
- overly-sensitive DA Rs
- D2 R
d. biological markers
- scalp hair whorl
- enlarged lateral ventricles
- atrophy of neurons
- hypoactive dorsolateral
prefrontal cortex (DLPFC)
DLPFC functions
- planning
- concept formation
- abstract reasoning
- volition
C. Diathesis- stress model
V. Treatment
a. antipsychotics (neuroleptics)
- typical
extrapyramidal side effects (EPS)
- atypical
< EPS
b. psychological
1. compliance with meds
2. treatment of associated negative affect
3. behavioral interventions that use operant conditioning principles to shape desirable behaviors
- token economy
4. family tx to lower EE
- acceptance of limitations and not trying to control something that cannot be controlled
- decrease hostility, criticism, intrusiveness
5. Social skills training
VI. The Quiet Room
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