Raine et al. Flashcards
participant number
82
41 murderers
41 controls
mean age of murderers
34.3
examples of the diverse reasons for referral
schizophrenia
history of substance abuse
history of hyperactivity or learning disorder
what were the murderers and control group matched on
age & sex
what did the participants need to do for the 2 weeks preceding scanning
be medication free
how was it ensured that the participants were medication free
urine screens
which types of people weren’t allowed to participate in the control group
subjects with a history of head trauma, substance abuse or seizures
mean age of control group
31.7 years
how were the 6 schizophrenic murderers matched to the control group
matched to 6 non-murderer schizophrenics on age and sex
what was the tracer injected into the ppts
FDG (fluorodeoxyglucose)
how long was the period between when the ppts were injected and when the PET scan took place
32 minutes
how was the tracer used in the brain
tracer contains glucose
taken up by cells in the brain to show metabolic rate
this is picked up by the scanner to show levels of brain activity in different areas
when was the continuous performance task (CPT) started before the scan and why
10 seconds before the scan
so that initial task novelty would not be FDG labelled
how were images of the brain taken during the PET scan
10 slices at 10mm intervals
parallel to the canthomeatal line obtained
when were practice trials on the CPT given
10 mins before injection
