1. Introduction
* Criminology and serotonin
* The importance of studying the link between violence and serotonin
* Outline what will be written in each chapter

2. Methodology
* Literature review – definition of lit review and explain why it is the most appropriate source
* Explain why I haven’t used primary research eg – ethical issues etc
* Benefits of lit review as opposed to primary research in general. Also, specifically in terms of serotonin levels and violence
* Pros/cons of secondary data sources (emphasis on pros)

3. Definitions
* Define violence including: trends in violence, legal definitions, Bartol and Bartol (2005) – all violence is aggressive but not all aggression is violent
* How has violence historically been understood?
* How has violence historically been explained?

4. The relationship between serotonin and violence
* How can serotonin explain violence?
* A history of how serotonin has been understood
* The historical link between serotonin and violence

5. The link to mental health
* Mental health and serotonin levels – depression
* Evidence including positive correlations
* Can serotonin levels affect mentality and whether a person is more prone to commit violent acts?
* Include evidence – case studies, medical support, correlations, court cases where individuals have used mental health as a defence for violent acts (especially those with levels of high/low levels of serotonin)

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