Schizophrenia Flashcards

(57 cards)

1
Q

What is schizophrenia?

A

A severe type of psychotic disorder characterized by disturbances in thoughts, feelings, experience, and behavior.

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2
Q

What are the core symptoms of schizophrenia according to ICD-11?

A
  • Persistent delusions
  • Persistent hallucinations
  • Thought disorder
  • Experiences of influence, passivity or control
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3
Q

Define persistent delusions in the context of schizophrenia.

A

Beliefs that are not based in reality, such as falsely believing that someone is trying to harm you.

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4
Q

What are persistent hallucinations?

A

Sensory experiences, most commonly auditory or visual, such as hearing voices or seeing things that are not there.

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5
Q

What is a thought disorder?

A

An inability to think and therefore speak in an organized manner.

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6
Q

What does ‘avolition’ refer to?

A

Lack of motivation.

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7
Q

What is a ‘flattened affect’?

A

The absence or reduction of an outward expression of feelings or emotions.

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8
Q

Differentiate between positive and negative symptoms in schizophrenia.

A
  • Positive symptoms: Experiences in addition to or a distortion of normal experience (e.g., delusions, hallucinations).
  • Negative symptoms: Functioning or experience falls below normal levels (e.g., avolition, flattened affect).
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9
Q

What is required for a diagnosis of schizophrenia?

A

Symptoms must persist for at least one month and not be due to another health condition or substance effects.

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10
Q

Describe a persecutory delusion.

A

A strongly held belief that one is in danger and being conspired against.

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11
Q

What is a grandiose delusion?

A

A belief that one possesses special abilities or powers, such as thinking they are a superhero.

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12
Q

What is a delusion of reference?

A

The belief that environmental events are related to oneself.

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13
Q

What ethical considerations must be taken into account when using children in psychological research?

A

Informed consent must be obtained from parents, and protection from harm is crucial.

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14
Q

What is a case study?

A

A research method that allows for in-depth analysis of a single participant or small group, yielding detailed qualitative and quantitative data.

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15
Q

What is the Brief Symptom Inventory (BSI)?

A

A 53-item self-report measure designed to assess nine symptom dimensions over the past seven days.

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16
Q

How does virtual reality (VR) help in understanding persecutory ideation?

A

VR can create a simulated environment to investigate how people perceive hostility, helping to improve understanding of persecutory ideation.

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17
Q

What were the aims of Freeman et al.’s (2003) study?

A

To investigate whether participants without a history of mental illness experience persecutory thoughts in virtual reality and identify predictive factors.

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18
Q

What was the sample size and demographic in Freeman et al.’s study?

A

24 participants (12 male and 12 female), all students or administrative staff from University College London.

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19
Q

What correlation did Freeman et al. (2003) find regarding persecutory ideation?

A

Higher levels of interpersonal sensitivity and anxiety were significantly correlated with higher levels of persecutory thoughts in VR.

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20
Q

What is one limitation of case studies?

A

Results cannot be generalized to the wider population.

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21
Q

True or False: A positive symptom in schizophrenia is a distortion of normal experience.

A

True

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22
Q

Fill in the blank: A _______ is a strongly held belief that events in the environment are related to oneself.

A

delusion of reference

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23
Q

What is the sample size and demographic of the participants in the study?

A

The sample was relatively small (24), and all participants were from the same university (either students or administrative staff)

24
Q

What ethical considerations were taken into account in the study?

A

Participants gave consent, had the right to withdraw, and were debriefed afterwards

25
What is one limitation of the study's findings?
The application to everyday life is limited because the study used VR, not actual real-life situations
26
What are the three methods of investigating the genetic explanation for schizophrenia?
* Family studies * Twin studies * Adoption studies
27
What do family studies suggest about the development of schizophrenia?
Individuals with close family members who have schizophrenia are more likely to develop the disorder
28
What did Gottesman (1991) find regarding the likelihood of developing schizophrenia?
The likelihood went from 1% in the general population to 48% if you have an identical twin with schizophrenia
29
What is the heritability percentage of schizophrenia according to Hilker et al. (2017)?
79%
30
What is the purpose of adoption studies in relation to schizophrenia?
To separate the influence of genetics from the influence of the environment
31
What does the dopamine hypothesis state?
The brains of people with schizophrenia produce more dopamine than those without the disorder
32
What is a neurotransmitter?
A chemical messenger that enables communication between neurons in the brain
33
What evidence supports the dopamine hypothesis?
* Drug trials show increased dopamine correlates with hallucinations and delusions * Post-mortem studies show more dopamine receptors in the brains of those with schizophrenia
34
What is a cognitive explanation for schizophrenia according to Frith (2015)?
Schizophrenia involves faulty mental processes rather than solely physiological explanations
35
What does Frith identify as an abnormality in schizophrenia?
Abnormality of self-monitoring
36
What are typical antipsychotics?
Antipsychotics developed in the 1950s that reduce the effect of dopamine to decrease positive symptoms
37
What are atypical antipsychotics?
Antipsychotics developed in the 1990s that affect dopamine levels to reduce both positive and negative symptoms
38
What are some side effects of typical antipsychotics?
* Extrapyramidal symptoms (EPSs) * Tardive dyskinesia (TD)
39
What is Electro-convulsive therapy (ECT)?
A biological treatment applied to help alleviate symptoms of schizophrenia
40
What is the purpose of randomised control trials (RCTs) in studying antipsychotic drugs?
To compare the effectiveness of different drugs or medications
41
What is non-adherence to medication?
When a patient goes against a physician's instructions for drug dosage
42
Fill in the blank: The likelihood of developing schizophrenia increases to ______ if you have an identical twin with schizophrenia.
48%
43
True or False: Atypical antipsychotics have a higher risk of side effects than typical antipsychotics.
False
44
What is non-adherence to medication?
Occurs when a patient goes against a physician's instructions for drug dosage ## Footnote For instance, this can happen when a patient stops taking their medication.
45
What is Electro-convulsive therapy (ECT)?
A biological treatment used to alleviate symptoms of schizophrenia by inducing seizures ## Footnote ECT has evolved from its traditional methods and is considered controversial.
46
Who discovered the potential for electricity to induce seizures in humans?
Physicians Ugo Cerletti and Lucio Bini ## Footnote They observed the effects of electric shocks on cattle.
47
How is modern ECT applied compared to traditional methods?
Modern ECT is applied unilaterally to the non-dominant hemisphere only ## Footnote This is to reduce memory loss associated with the treatment.
48
What are common side effects of ECT?
Memory loss and potential risks to the central nervous and cardiovascular systems ## Footnote Memory loss is usually temporary, but lasting neurological damage or death are extremely rare.
49
What is one theory explaining the effect of ECT on mental disorders?
It affects post-synaptic responses to central nervous system transmitters ## Footnote This is not a universally accepted explanation.
50
When is ECT rarely used?
In the treatment of schizophrenia due to a lack of evidence suggesting it is more effective than antipsychotics ## Footnote ECT may be effective during acute episodes of psychosis.
51
What is Cognitive-behavioural therapy (CBT)?
A treatment approach that incorporates principles from both cognitive and behaviourist psychology ## Footnote CBT helps change thoughts that underlie behaviors.
52
What was the aim of Sensky et al.'s (2000) study?
To compare the effectiveness of CBT with a control group engaging in 'befriending' ## Footnote This was to test the effectiveness of CBT itself.
53
What was the sample size and demographic in Sensky et al.'s study?
90 patients aged 16-60 years with treatment-resistant schizophrenia ## Footnote Patients received an average of 19 sessions of either CBT or befriending.
54
What were the results of Sensky et al.'s study regarding symptom reduction?
Both groups showed significant reduction in symptoms immediately after treatment ## Footnote However, benefits of CBT persisted at a nine-month follow-up.
55
What does the idiographic versus nomothetic approach refer to?
The idiographic approach focuses on individual cases while the nomothetic approach aims to generalize findings across larger populations ## Footnote Research into treatments often uses a nomothetic approach.
56
What is the main goal of randomised control trials in psychology?
To make generalisations about effective treatments based on large sets of data ## Footnote This helps determine treatment effectiveness compared to a placebo.
57
Fill in the blank: The use of randomised control trials allows psychologists to gather large amounts of data about how effective a treatment is, compared to a _______.
placebo