Brain Abnormalities, PET Scan- Raine 1997

jess.courtney13
Mind Map by , created over 5 years ago

Edexcel Exam Board- one of the main studies in the Biological Approach

48
1
0
jess.courtney13
Created by jess.courtney13 over 5 years ago
COGNITIVE CORE STUDIES-PSYCHOLOGY
addienicole16
AS Psychology Unit 1 - Memory
Asterisked
Meeus and Raaijmaker (1986)- Interviews
jess.courtney13
Was the Weimar Republic doomed from the start?
Louisa Wania
Matters of Life and Death - Edexcel GCSE Religious Studies Unit 3
nicolalennon12
The Biological Approach to Psychology
Gabby Wood
Evaluation of Raine's 1997 study
jess.courtney13
MRI Scans
Heloise Tudor
UNIT 2: Attachment Case Studies
jessica.allam
AS Psychology: Eye Witness Testimony Revision
Asterisked
Brain Abnormalities, PET Scan- Raine 1997
1 AIM
1.1 To measure brain activity associated with violence
1.1.1 Comparison between a group of murderers and non murderers
1.1.2 Does it vary?
2 METHOD
2.1 2 groups
2.1.1 41 participants in each
2.1.2 Group 1- participants accussed of murder, but pleading guilty by insanity
2.1.3 Group 2- matched control group of non murderers
2.2 Groups were matched on a basis of age, sex and schizophrenia
3 PROCEDURE
3.1 Murderers (group 1) sent for brain scanning
3.1.1 Enable us to identify activity in the brain
3.1.1.1 Which parts are using more glucose/ energy
3.2 Both groups were then injected with a tracer substance
3.2.1 Substance= glucose mixed with radioactive tracer
3.2.2 Revealing which areas of the brain are more active
3.3 They then took part in a CPT scan
3.3.1 Detecting certain signals for 32mins
3.3.2 Once completed a PET scan was given
3.3.2.1 Revealing levels of activity in different areas of the brain
4 RESULTS
4.1 PARIETAL CORTEX- less activity
4.1.1 Linked with verbal ability- lower educational achievement
4.2 PRE-FRONTAL CORTEX- less activity
4.2.1 Linked to self control
4.2.1.1 Little/no control over violent impulses
4.3 CORPUS CALLOSSUM- less activity
4.3.1 Linked to self control
4.4 LIMBIC SYSTEM-
4.4.1 Linked to expression and emotion
4.4.1.1 RIGHT SIDE (THALAMUS)
4.4.1.1.1 More activity
4.4.1.2 LEFT SIDE (AMYGLADA+HIPPOCAMPUS)
4.4.1.2.1 Less Activity
4.4.1.2.1.1 CONCLUSION- aggression and such behaviour is biologically and not environmentally caused

Media attachments