WJEC A-Level Psychology 601-5719-7
Psychology Past to Present — The Five Approaches
Contemporary Debates
Principles of Research and Application of Research Methods
Mathematical Requirements for Psychology (Appendix A: AS Unit 2 and A2 Unit 4)
Addictive BehavioursAddictive
Autistic Spectrum BehavioursAutistic spectrum
Bullying BehavioursBullying
Criminal BehavioursCriminal
SchizophreniaSchizophrenia
StressStress
Controversies in Psychology
Applied Research Methods
Psychology Past to Present — The Five Approaches
The Biological Approach: love chemicals, strengths and weaknesses
- 3 things to know
- AS Unit 1
Overview
The chemicals linked to moving from attraction to attachment and the serotonin finding in new lovers, then the approach's methodological and practical strengths, twin studies, and the charges of reductionism and determinism.
What you need to know
Answer each one before you reveal it.
Which team reported that people newly in love had serotonin levels resembling those of people with obsessive-compulsive disorder?
How do twin studies act as a strength for this approach?
Questions from this subtopic
Each one with the model answer underneath.
- 1
Which chemicals are associated with the shift from attraction to long-term attachment?
Model answer
Oxytocin and vasopressin, which are linked to bonding, trust and maintaining a pair bond.
- 2
Which team reported that people newly in love had serotonin levels resembling those of people with obsessive-compulsive disorder?
Model answer
Marazziti and colleagues (1999).
- 3
Give a methodological strength of the biological approach.
Model answer
It uses objective, measurable and replicable techniques such as PET, fMRI and EEG, which gives it strong scientific credibility.
- 4
Give a practical strength of the biological approach.
Model answer
It has produced effective real-world treatments, such as the drugs that allow many people with severe mental illness to live in the community.
- 5
How do twin studies act as a strength for this approach?
Model answer
Higher concordance rates in monozygotic than dizygotic twins for conditions such as schizophrenia provide empirical support for a genetic contribution to behaviour.
- 6
Explain why the biological approach is criticised as reductionist.
Model answer
It explains complex human experience purely in terms of genes, brain structure and chemicals, ignoring thought, emotion, upbringing and culture.
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