schizophrenia chapter questions Flashcards
What is psychosis?
Psychosis is a state of being profoundly out of touch with reality.
What are hallucinations?
Hallucinations are abnormal sensory experiences such as hearing or seeing non-existent things.
What are delusions?
Delusions are fixed, false and often bizarre beliefs.
What are the five characteristic symptoms of schizophrenia contained in the DSM-IV-TR diagnostic criteria for schizophrenia?
Positive/ Type I symptoms: delusions, hallucinations, disorganised speech, grossly disorganized or catatonic behaviour
Negative/ type II symptoms: negative symptoms (such as lack of emotion, speech, or motivation)
How many of the five characteristic symptomse need to present for a diagnosis of schizophrenia?
Two or more of the five symptoms need to present for a diagnosis of schizophrenia.
What are the criteria for significant social/occupational dysfunction?
There must be evidence of significant impairment and deterioration present over time in an individual’s ability to function in his or her social and occupational world. People with schizophrenia have significant difficulties with work, school and relationships.
For example, 60-70% of individuals with schizophrenia never marry, and those who do often report poor quality marriages and high rates of separation and divorce. Typically, the socioeconomic status of individuals with schizophrenia is below that of their family of origin and of their unaffected parents and siblings (downward drift).
For at least how long must behavioural disturbance have been present for a diagnosis of schizophrenia?
Over 6 months
What is the definition of positive symptoms?
Positive or Type I symptoms of schizophrenia: symptoms that represent pathological excesses, exaggerations, or distortions from normal functioning, such as delusion, hallucinations, and disorganized speech, thought or behaviour
What is disorganized speech?
Disorganized speech or thought: severe disruptions in the process of speaking or thinking.
What is grossly disorganized behaviour?
Grossly disorganized behaviour refers to a wide of variety of bizarre or disrupted behavioural patterns that can include dishevelment, extreme agitation uncontrollable childlike silliness, inability to perform simple activities of daily living, etc.
How many types of delusions are there?
DSM-IV-TR distinguishes between bizarre and nonbizarre delusions. Bizarre delusions are those that do not relate to ordinary life experience. In contrast, the belief that one is being followed by the CIA would be considered a nonbizarre delusion
In terms of content, delusions of persecution- the idea that one is being attacked, followed, controlled and so on- are the most common. Delusion of grandeur, such as peter’s belief that he is Jesus, and delusions of reference, which involve the false assumption that external events are connected to oneself (such as the idea that a TV announcer is specifically talking to you) also occur frequently. Other common themes in delusions include guilt (delusion of sin), illness (hypochondriacal delusions), and the impending end of the world (nihilistic delusions).
What is catatonic behaviour?
Catatonic behaviours are bizarre motoric behaviours. They can range from extreme immobility and unresponsiveness (known as catatonic rigidity and catatonic stupor, respectively) to extreme agitation, such as a purposeless flailing, pacing or spinning (catatonic excitement). Catatonic rigidity sometimes includes an unusual symptom known as waxy flexibility in which patients’ limbs, often held in rigid posture for hours, can be bent and reshaped as though made of wax.
What are the negative symptoms of schizophrenia?
Negative or Type II symptoms of schizophrenia: symptoms that represent pathological deficits, such as flat affect, loss of motivation, and poverty of speech.
Negative symptoms of schizophrenia include:
Affective flattening情感冷淡: lack of response to emotionally relevant stimuli
Avolition/ apathy: lack of motivation, interest in normal activities
Alogia失语症: poverty of speech, minimal or absent verbal communication, lowered volume or content
Anhedonia快感缺乏症: lack of interest in enjoyable experiences
What are the DSM-IV subtypes of schizophrenia?
Paranoid, Disorganized, Catatonic, Undifferentiated, Residual
Paranoid schizophrenia: prominent delusions or auditory hallucinations, most common
Disorganized schizophrenia: prominent disorganized speech, disorganized behaviour, and flat or inappropriate affect, most severe
Catatonic schizophrenia: prominent psychomotoric symptoms, such as rigid physical immobility, and unresponsiveness or extreme behavioural agitation, muteness, echolalia and echopraxia
Undifferentiated schizophrenia: active schizophrenic symptoms that do not fit the paranoid, disorganized, or catatonic subtypes
Residual schizophrenia: following at least one episode of schizophrenia, a state in which there are no prominent positive symptoms of schizophrenia but some negative symptoms and milder positive symptoms remain.
List the other DSM disorders related to schizophrenia.
Schizoaffective Disorder, Schizophreniform Disorder, Brief Psychotic Disorder, Delusion Disorder, Shared Delusional Disorder
Schizoaffective Disorder分裂情感性障碍: DSM-IV-TR diagnosis involving symptoms of both a mood disorder and schizophrenia
Schizophreniform Disorder [医]精神分裂症样精神障碍: DSM-IV-TR diagnosis involving a psychotic episode that has all the features of schizophrenia but has not lasted for 6 months
Brief Psychotic Disorder [医]短时精神障碍: DSM-IV-TR diagnosis involving a psychotic episode that has all the features of schizophrenia but lasts less than one months.
Delusion Disorder妄想症: DSM-IV-TR diagnosis involving nonbizarre delusions lasting at least a month
Shared Delusional Disorder/ Folie A Deux 感应性精神病: DSM-IV-TR diagnosis involving delusions that develop in the context of a close relationship with a psychotic person. i.e. patients typically in LT and close relationship with a schizophrenic person.