Procedures

• Procedures 1

  • The sample was obtained using opportunity sampling
  • PET scan was used
  • All participants given an injection of a tracer - taken up by active areas of the brain thus it was possible to compare the brains of NGRI + control group
• Procedures 2

  • All participants were asked to do a continuous performance task (CPT) - aimed to activate the target areas of the brain so investigators can see how different areas functioned
• Procedures 3

  • Participants were given time to practice the CPT before receiving the FDG injection
  • 30 seconds before the injection, participants started CPT so the initial task novelty wouldn't be FDG labelled
  • 32 minutes after the FDG injection a PET scan was done
  • 10 horizontal slides of their brains were recorded using cortical peel + box techniques
  • The article provided precise details of the scanning techniques so the study can be replicated