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Topic 0: Schizophrenia and Other Psychotic Disorders

Practice Test

Practice Test

This activity contains 15 questions.

	Which of the following is most likely to be diagnosed with schizophrenia?   a twenty-four-year-old man from Ireland an eighteen-year-old male from Papua, New Guinea a twenty-four-year-old woman from Croatia an eighteen-year-old female from Ireland

	What is incorrect about describing schizophrenia as "dementia praecox"?   progressive degeneration of the brain has not been established schizophrenia is usually first diagnosed in middle age there is no evidence of brain pathology in schizophrenia schizophrenia is not characterized by cognitive dysfunction

	What do neuroimaging studies of hallucinating schizophrenics reveal?   that hallucinations reflect a cognitive disturbance that most hallucinations are auditory that auditory hallucinations reflect an inability to filter out environmental stimuli that auditory hallucinations may be a result of thinking that one's own thoughts are coming from somewhere else

	Which of the following is an example of a negative symptom of schizophrenia?   paranoid delusions inappropriate emotion alogia hallucinations

	Which of the following is commonly seen in paranoid schizophrenics?   echopraxia and echolalia poor prognosis grossly disorganized thought and behavior delusions of grandeur

	What diagnosis is given if a schizophrenic-like psychosis lasts only four months?   residual type schizophreniform disorder schizoaffective disorder undifferentiated type

	Compared to the other forms of schizophrenia, the disorganized type   is less responsive to treatment. is characterized by more negative symptoms. has a better prognosis. develops more quickly.

	Which of the following is NOT associated with an increased risk for schizophrenia?   Rh compatability prolonged labor prenatal nutritional deficiency having an older father

	How is maternal influenza exposure thought to increase the susceptibility for schizophrenia?   prenatal influenza exposure results in hypoxia, damaging the fetal brain malnutrition is a common consequence of maternal illness antiviral antibodies develop that act as the stressor that activates dormant genes that cause schizophrenia products of the maternal immune system disrupt fetal development

	What does research comparing the rates of schizophrenia in monochorionic twins and dichorionic twins suggest?   The role of obstetrical complications in the development of schizophrenia is in need of further study. Prenatal environmental factors can not account for the differences in concordance rates for identical and fraternal twins. The importance of the family environment during the early postnatal period may play a significant role in determining whether or not the child with a diathesis for schizophrenia develops the disorder. Concordance rates that suggested a role of genes in schizophrenia might more accurately be interpreted as a reflection of the influence of shared prenatal experience.

	What complicates the use of prospective studies designed to identify developmental precursors of schizophrenia?   The fact that the majority of those who develop schizophrenia do not have a first- or second-degree relative with schizophrenia. Records are often incomplete and may not provide investigators with all the necessary information. There is no way to gather information as to the quality of the family environment. The inherent bias resulting from the collection of prospective data.

	What have studies of preschizophrenic children found?   The more closely related a child is to an adult with schizophrenia, the more likely they will show motor abnormalities during childhood. Attention deficits were common in both the preschizophrenic children and their siblings, suggesting that some of the behavioral problems seen in those with schizophrenia might better be interpreted as consequences of the home environment. Early motor abnormalities may be an especially useful predictor of later schizophrenia. If motor abnormalities are apparent before age 2, a later diagnosis of schizophrenia is almost certain.

	Which of the following has been observed in the brains of schizophrenics?   enlarged thalamus reduced ventricle size increased frontal lobe activity decreased brain volume

	Which of the following does NOT provide support for the dopamine hypothesis?   the ability of drugs like LSD to produce hallucinations the consequences of giving L-DOPA to schizophrenia patients the pharmacological action of the first antipsychotic drugs altered levels of dopamine receptors in the brains of both treated and untreated schizophrenics

	Which of the following is an advantage of the use of novel antipsychotics?   treat only negative symptoms agranulocytosis no side effects fewer extrapyramidal symptoms

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