OCR A-Level Psychology H567
Research Methods and Techniques
Planning and Conducting Research
Data Recording, Analysis and Presentation
Report Writing and Scientific Communication
Practical Activities and the Nature of Science
Mathematical Requirements for Research Methods
Studying and Evaluating the Core Studies: The Common Framework
Core Studies: Social Area
Core Studies: Cognitive Area
Core Studies: Developmental Area
Core Studies: Biological Area
Core Studies: Individual Differences Area
Areas and Perspectives in Psychology
Debates in Psychology
Practical Applications of Psychology
Issues in Mental Health
Child PsychologyApplied option
Criminal PsychologyApplied option
Environmental PsychologyApplied option
Sport and Exercise PsychologyApplied option
Methodological Issues and Debates Running Through Applied Psychology
Criminal Psychology
Raine et al. (1997) brain abnormalities in murderers: background, procedure and brain findings
- 3 things to know
- Component 03
Overview
Recall questions on the aim of Raine et al.'s 1997 brain imaging study of murderers, the experimental and control groups, medication screening, PET scanning and the continuous performance task, the quasi-experimental design, and reduced glucose metabolism and asymmetries in the murderers.
What you need to know
Answer each one before you reveal it.
Describe the experimental group in Raine et al.'s study.
How was the control group formed?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What was the aim of Raine et al.'s brain imaging study of murderers?
Model answer
To test whether people who had killed and pleaded not guilty by reason of insanity showed different patterns of brain glucose metabolism from matched non-offenders, particularly in areas already linked to violence.
- 2
Describe the experimental group in Raine et al.'s study.
Model answer
Forty-one people charged with murder or manslaughter, thirty-nine men and two women with a mean age of about 34, all of whom had pleaded not guilty by reason of insanity and had been referred for imaging to support their defence.
- 3
How was the control group formed?
Model answer
Forty-one people were matched to the murderers for age and sex and screened to be free of physical and mental illness, except that the six murderers with schizophrenia were matched with people who also had schizophrenia.
- 4
Why were participants kept free of medication for two weeks and given a urine screen before the scan?
Model answer
Because drugs alter brain glucose metabolism, so any medication still in the body would have confounded the measure of brain activity.
- 5
Which scanning technique was used, and what did the tracer actually measure?
Model answer
Positron emission tomography was used, and the radioactive glucose tracer was taken up in proportion to how much glucose each area was using, giving a measure of that area's activity.
- 6
What task did participants perform while the tracer was taken up, and why was that task chosen?
Model answer
They performed a continuous performance task detecting degraded targets for around thirty-two minutes, because it is known to activate the frontal lobes and so would reveal any frontal differences.
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