3.3.1 Bio exp.2: Structural Abnormalities Flashcards

(12 cards)

1
Q

what is the treatment-aetiology fallacy?

A

It’s the false belief that since a treatment works, it was a lack of whatever the treatment was that caused the disorder

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2
Q

What are 3 strength of using brain scans to study schizophrenia?

A
  • Scientific
  • objective
  • replicable
    > making the findings more reliable
    > as technology develops, we can have a better understanding of the brain
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3
Q

Why is it a weakness that many schizophrenic patients in brain scan studies take antipsychotic medication?

A

Because antipsychotics may themselves cause structural brain changes, making it unclear whether the abnormalities are due to the illness or the treatment

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4
Q

Why is cause and effect unclear in structural brain abnormalities and schizophrenia?

A

It’s unknown whether brain abnormalities cause schizophrenia or are an effect of having the disorder or its treatment

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5
Q

Why can the presence of structural abnormalities be a weakness in diagnosis?

A

These abnormalities are not exclusive to schizophrenia—they are also found in bipolar and schizoaffective disorders
> making diagnosis less specific

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6
Q

are bio theories determinist or free will

A

Highly deterministic, no room for free will:

  • Schizophrenics will often have no control over their behaviour and symptoms
  • Insisting that a schizophrenic has free will may actually be detrimental to their recovery
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7
Q

are bio theories idiographic or nomothetic

A

highly nomothetic:
- Sees a person as a list of symptoms

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8
Q

are bio theories scientific

A

Yes- Lots of evidence that schizophrenia is biological, particularly as it runs in families

Also responds well to biological treatments
> But be cautious of the treatment-aetiology fallacy

One day we might be able to use brain scans to diagnose
> Brain scans are also highly scientific

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9
Q

are bio theories hollistic or reductionist

A

Reductionist:
- Ignores social and cultural factors

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10
Q

what did McCarley et al. (1999) find

A
  1. enlarged ventricles are the most reliable findings when using brain scans on schizo’s
  2. suggest factors such as the age, sex and severity of symptoms can all effect if brain abnormalities are present or detected
    > suggests structural abnormalities may only appear in diagnosed schizophrenics or the need to notice subtel changes in brain structure
  3. Differences in research methods and patient assessment may explain why some studies fail to replicate findings, highlighting the need for more precise measurement techniques
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11
Q

what did flashman and green (2004) find

A
  • they found the link between cortical atrophy and schizophrenia is confirmed

> cortical atrophy = rare form of dementia

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12
Q
A
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