Chapter 14/15 Schizophrenia Flashcards
types of delusions
persecution
grandeur
reference (belief that random events are directed at self)
thought broadcasting (others can read thoughts)
mind reading (can read others’ thoughts)
types of hallucinations
auditory (voices)
also visual, olfactory, or tactile
voices are “real” and heard outside of head
may be commanding, critical, commenting, whispering
“Formal Thought Disorder”
loosely connected thoughts digressive, associative speech impaired logic concreteness neologisms problems with selective attention (problems with thalamus) -cannot focus on single thoughts
main symptoms
hallucinations, delusions, thought process (formal though disorder), emotion, motivation, relating to others, motor behavior
catatonia
motionless, frozen state, strange postures
positive symptoms
hallucinations, delusions, agitation
negative symptoms
loss of logical thinking loss of coherent speech flat, blunted affect anhedonia (lack of pleasure/enjoyment) avolition (lack of goal orientation) alogia (nothing to say in convos) social withdrawl
types of schizophrenia
Paranoid type (mostly positive symptoms) Disorganized type (mostly negative symptoms)
schizophrenia spectrum disorders
brief psychotic disorder
schizoaffective disorder
delusional disorder
Causes of schizophrenia
- loss of gray matter (
- loss of white matter (demyelinization)
- dilation of ventricles (fluid filled space in brain)
- atrophy of hippocampus (memory)
- thalamus irregularities (sensory gating deficit)
- shrinkage/inactivity of frontal lobes
- temporal lobe abnormalities (hearing)
- thinner corpus callosum
- neuropsychological testing shows impairments
- soft neurological signs (facial tics, motor skills, negative
emotional expressions on face, low social
competence, problems w/attn) - EEG abnormalities
- eye movement abmormalities
>handedness (no preference)
>fingerprints (fewer ridges)
>final neruonal trimming/ pruning abnormalites) - Biochemical abnormalities
>overactivity of dopamine receptors (meth/cocaine)
>blockage of serotonin receptors (LSD)
>diminished glutamate activity (PCP) - Father older than 50
- Maternal psychological stress (3-4th month of
pregnancy) - Maternal nutrition (affects grandchild)
- pregnancy/birth complications
- exposure to virus (beginning-middle pregnancy)
Etiology
genetics viral infections neurodevelopment stress/trauma factors (Diathesis-Stress model)
Obsolete Etiological Theories
Masturbation (throughout 19th cent.)
Schizophrenogenic mother (cold, distant mothers 1940-60’s)
Double Bind
Thomas Szasz (mental illness is myth)
R.D. Laing (sane response to insane world)
Treatment
- Hospitalization in state institutions
- Medical treatments prior to antipsychotics
>hydrotherapy, insulin coma, lobotomy, electroconvulsive) - Antipsychotic Medication
- Comprehensive Treatment on Mult. levels
older antipsychotic drugs
traditional
> block dopamine receptors and improve + symptoms
>thorazine, prolixin (injectible, less side effects, haldol)
side effects of older antipsychotic drugs
stiffness of posture and tremors shuffling gait stiffening of neck and jaw mask-like face decreased spontaneity restlessness dry mouth, blurred vision impaired sexual funtioning sedation weight gain Tardive Dyskinesia (involuntary movements of tongue/mouth)