CLINICAL PSYCHOLOGY SCHIZOPHRENIA Flashcards

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1
Q

what are the positive symptoms of sz

A

*hallucination
*experience of influence, passivity of control
*delusions
*disorganized thoughts
*disorganized behaviors’ along with catatonia behaviour

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2
Q

name few negative symptoms of sz

A

*alogia
*avolition
*affective flattening

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3
Q

what is the aim of freeman et al VR ideation

A

*to conduct a pilot study to find individuals have persecutory thoughts about VR characters under controlled conditions

*to find whether there are factors that predict the occurrence of such thoughts.

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4
Q

describe the sample method of freeman et al VR study

A

*volunteer sampling - from university college of london.( 21 students , 3 admin staff)
*special- all the volunteers are non clinical and adults .

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5
Q

what is the research method used by freeman et al.

A

self reports ( semi structured interviews and questionnaires)

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6
Q

explain the procedure if freeman et al VR ideation.

A
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7
Q

what are the measures he came up for the ideation

A

*brief symptom inventory (BSI)
*paranoia scale
*Spielberger state anxiety questionnaire
*VR paranoia
*semi structured interview and observing rating of *persecutory ideation
*sense of presence questionnaire

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8
Q

write the the results in freemans ideation

A

*no gender difference in score
*in the VR paranoia questionnaire , persecutory thoughts positively correlated with ideas of reference , the interviews and negatively with positive beliefs.
*paranoia score was 31.8.
*VR persecutory thoughts positively correlated with paranoia , interpersonal sensitivity and anxiety .

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9
Q

conclusion of freeman et al ideation

A
  • VR method can be used for better understanding of persecutory ideation , to help evaluation and even to be used to reduce persecutory ideation and delusions.
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10
Q

mention 4 methodological weaknesses of freeman et al ideation

A

*findings lack ecological validity.
*sample was non clinical , biased therefore generalizability to clinical patients are questionable.
*VR may cause simulation sickness ( dizziness , nausea , headache , eye strain )
*since feed back is done through self reports the reports might not be very biased( due to social desirability)

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11
Q

mention 2 methodological strengths

A

*collected quantitative data in all questionnaires and even the interviews were rated making it easy to analyse , compare and find relationships.

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12
Q

what are the ethical issues that can be seen in freeman et al ideation

A

*though consent was taken it was not fully informed consent as they did not know that it was about their persecutory thoughts .
*confidentiality was maintained

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13
Q

what are the issues and debates from freeman.

A

*application to every day life
*individual vs situational
*idiographic vs normothetic

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14
Q

how can we explain sz and delusional disorder.

A

*biological explanation
*cognitive explanation

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15
Q

what are the 2 explanations that comes according to biological view point of sz

A

*genetic explanation
*biochemical explanation

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16
Q

how can we get biological approaches in sz

A

*explanation on brain structure
*biochemicals( neurotransmitters , hormones)
*genetics of a individual.

17
Q

what are the genetic view point of sz

A
18
Q

what is the neurotransmitter that affect for sz

A

dopamine (high level of dopamine)

19
Q

what is the biochemical explanation for negative symptoms of sz

A

lack of dopamine in the pre frontal cortex

20
Q

what is the biochemical explanation for negative symptoms of sz

A

lack of dopamine in the pre frontal cortex

21
Q

what are the research evidence for high dopamine level leads for sz

A

*post mortem brain of sz patient has high amount of dopamine receptors also it has low amount of enzymes that break down dopamine.
*drugs that increase dopamine such as cocaine and amphetamine have

22
Q

what are the research evidence for high dopamine level leads for sz

A

*post mortem brain of sz patient has high amount of dopamine receptors also it has low amount of enzymes that break down dopamine.
*drugs that increase dopamine level of the body such as cocaine and amphetamine give similar symptoms to sz.
*Parkinson patients normally have less amount of dopamine therefore as a treatment the provide L Dope which increase the dopamine level of the body also gives similar symptoms to sz after medication.
* animal studies done related to sz( Tenn et al 2003) - when rat is injected with high dosage of dopamine they show sz symptoms and when they reinject drugs that block D1 receptor this symptoms disappear.