Exam Three Flashcards
(71 cards)
The lifetime prevalence of schizophrenia is around
1 percent
symptoms of schizophrenia have been classified as
positive, negative, and disorganized
an exaggerated sense of importance, power, knowledge , or identity is
grandiose delusion
Sensory experiences in the absence of any relevant stimulation from the environment are called
hallucinations
Among those with schizophrenia who suffer from delusions, a large majority experience
delusions of persecution
Which of the following are examples of negative symptoms of schizophrenia?
flat/blunted affect, lack of initiative (avolition), asociality, anhedonia, logia
What are the two domains of negative symptoms of schizophrenia?
motivation and pleasure domain - (motivation, emotional experience, and sociality)
expression domain - (outward expression of emotion and vocalization)
What type of anhedonia do people with schizophrenia have?
anticipatory pleasure, NOT consummatory
What are the forms of schizophrenic delusions?
thought insertion - computer chip in head
thought broadcasting - other ppl can hear your thoughts
external control of feelings and behaviors
grandiose delusions
ideas of reference - moments of “insight” where there really in not connection in reality
What are the positive symptoms of schizophrenia?
delusions and hallucinations
James suffers from schizophrenia and flails his limbs wildly with excitement. This is most appropriately labeled as
catatonia
Catatonia falls under which category of schizophrenia symptoms?
disorganized
Emil Kraepelin and __________ initially formulated the concept of schizophrenia.
Eugene Bleuler
Howard had a psychotic episode following the death of his wife. He had hallucinations in which he would hear her speaking to him, telling him to kill himself. Howard developed elaborate delusions about his ability to communicate with his wife’s spirit. Howard recovered from this episode after one week and had no further symptoms What DSM-5 diagnosis would fit Howard’s case?
breif psychotic disorder (last 1 day to 1 month)
The concordance rate of schizophrenia for fraternal twins is about
12%
schizophreniform disorder
same symptoms of schizophrenia but last only 1-6mos
Which of the following suggests that dopamine receptors are mainly related to positive (not negative) symptoms of schizophrenia?
Antipsychotic drugs reduce only positive symptoms
A consistent brain abnormality found among people with schizophrenia is
enlarged ventricles
In people with schizophrenia, the amount of gray matter in the temporal and frontal cortexes is
less than normal
Which of the following have been proposed as likely contributors to the reductions in hippocampal volume observed in people with schizophrenia?
stress reactivity and a disrupted HPA axis
According to the family theory of schizophrenia, a schizophrenogenic mother would be described as
emotionally cold and domineering
Research investigating the role of the family in schizophrenia best supports the
expressed emotion theory
In regard to studies identifying chromosomal locations of genes involved in schizophrenia,
the results of these studies are simply too varied to justify any firm conclusions.
In the DSM-5, Attenuated Psychosis Syndrome is now
included in section III (conditions needing further research).