Other Biological Methods (Edexcel A-Level Psychology): Quizzes

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Other Biological Methods
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What technology do CAT scans use to create images of brain structure?

X-ray technology

What is the name of the radioactive tracer used in PET scans?

Fluorodeoxyglucose (FDG)

When were fMRI scans introduced?

1990s

What percentage of genetic material do monozygotic (MZ) twins share?

100%

Which brain-scanning technique only shows structure, not function?

CAT scans

In PET scans, what colour indicates high brain activity?

Red (warm colour)

What is the magnetic property of oxygenated haemoglobin in fMRI scans?

Diamagnetic

What was the MZ twin concordance rate for schizophrenia in Gottesman and Shields (1966)?

42%

What do adoption studies help researchers separate?

Nature and nurture

What is a critical limitation of brain-scanning research on behaviour?

Correlation ≠ causation

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