Barkley-Levenson (2014) Child Psychology - Component 3
- Created by: erose20
- Created on: 04-12-19 14:10
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- Barkley-Levenson (2014)
- Aim
- To examine neural differences in the ventral straitum associated with reward value
- To examine behavioural differences in risk-taking
- Methodology
- Quasi Experiment in a Lab Setting
- Independent Measures Design
- 19 healthy, right-handed adults (11 Female, 8 Male) and 22 healthy, right-handed adolescents (11 Females, 11 Males)
- Self-selected sample (Volunteers)
- Controls
- All right-handed participants
- Used the same fMRI scanner
- Procedure
- They had 144 spinners, on one side of the spinner they could gain money, on the other side they could lose money
- Expected Value (EV) - whether the spinner had high loss/gain or low loss/gain
- Results
- Similar judgements and risk-taking between adults and adolescents
- Adolescents were more likely to take risks if there was a higher expected value (therefore, more beneficial risks)
- The left ventral straitum in adolescents showed greater activity, especially if there was greater EV's
- This shows there is a biological cause of risk-taking
- Conclusions
- Adolescents place greater value on rewards than adults
- Ventral Straitum activity of EV in adolescents linked with increased risk-taking behaviour
- Aim
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