Schizophrenia & Psychotic Disorders Flashcards
Is a severe mental condition in which there is disorganization of the personality, deterioration in social functioning, & loss of contact w/ or distortion of reality
There may be evidence of hallucinations & delusional thinking; it can occur w/ or w/o the presence of organic impairment
Psychosis
Nature of the disorder
- Also affects social & occupational functioning
- Causes suffering; is a threat to life & happiness; causes long hospitalization; chaos in family life; is an exorbitant cost to individuals & governments
- Thought processes
> Alters thought content & forming thoughts (i.e., delusions, loose associations) - Perception
> Disturbances can include auditory & visual hallucinations
- Affect
> Emotional tone that’s altered; an incongruence w/situation; an affect that lacks actual emotional tone
Predisposing Factors
- Biological & psychological factors
- Environmental influences [i.e., poverty, stressful life events, use of cannabis]
- The cause of schizophrenia remains unclear; it’s viewed as a brain disorder w/little if any emphasis on psychosocial influences
- Having relatives versus the general population; it’s unclear if schizophrenia is inherited
Schizophrenia or schizophrenia-like symptoms may be caused by an excess of ___; this notion is reinforced by the effectiveness of antipsychotics which work by blocking the ↑ receptors
dopamine
> Other neurotransmitters include norepinephrine, serotonin, glutamate, and GABA
- The dopaminergic system has been the most widely studied
- Some cases of schizophrenia have been observed following infection from prenatal exposure to viral infections
- Anatomical abnormalities like ventricular enlargement
- It’s likely that schizophrenia is multifactorial
Schizophrenia spectrum and related disorders
- Schizotypal personality disorder
- Delusional disorder
- Brief psychotic disorder
- Substance-induced psychotic disorder
- Psychotic disorder due to another medical condition
- Schizophreniform disorder
- Schizoaffective disorder
This condition reflects an impairment in personality but it’s not severe enough to be called schizophrenia
Schizotypal personality disorder
This condition has a sudden onset of psychotic symptoms that may be from a stressor
> These sx’s last at least a day but less than a month. There’s an eventual return to the level of premorbid function
Brief psychotic disorder
This is characterized by the presence of delusions experienced for at least 1 month
Hallucinations are not prominent if present at all and the behavior is not bizarre; can include subtypes
Delusional disorder
This is from substance intoxication or withdrawal or exposure to a medication or toxin
Substance-induced psychotic disorder
This differs in terms of the timeframe
At least 1 month but is less than 6 months of symptoms
Schizophreniform disorder
Signs and symptoms of schizophrenia are present along with a strong element of a mood disorder which includes symptoms of depression, mania, or both
Schizoaffective disorder
Occurs as a result of CNS infection, like neurosyphilis, also Huntington’s, and brain abscesses
Psychotic disorder due to another medical condition
DSM 5 Schizophrenia
Positive symptoms of schizophrenia
Positive symptoms are manifestations of things that are not normally present and are the most easily identified symptoms or manifestations
- Disturbances in thought content
- Disturbances in perception (take the form of hallucinations)
> Sensory, auditory [most common], visual, tactile, olfactory, gustatory - Disorganized thinking
- Grossly disorganized or abnormal motor behavior
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Are false, fixed beliefs
> They can be persecutory, and this is the belief that one is going to be harmed by others
delusions
This is the belief that cues in the environment are specifically referring to the individual
ideas of reference
These are beliefs of exceptional greatness
grandiose delusions
This is a belief that centers on one’s own body functioning
somatic beliefs
Paranoia can manifest as extreme suspiciousness of others & of others’ actions or perceived intention
This is when a person believes that his or thoughts or behaviors have control over specific situations or people
magical thinking
These are misperceptions or misinterpretations of real external stimuli
Illusions
Another form of a disturbance in perception is ___, which is where the client is imitating movements made by others
echopraxia
Disorganized thinking
- Often manifested in speech
- Loose association; tangential thinking; circumstantiality; incoherence
Grossly disorganized or abnormal motor behavior
- Can include catatonia; hyperactivity; hypervigilance; hostility; childlike silliness
- Sometimes repetitive movements or unusual mannerisms are also seen as well as posturing
Terms to review
- word salad
- circumstantiality
- tangentiality
- perseveration
- loose association
- neologisms
- clang associations
- echolalia
- ideas of reference
- catatonia