The 'Psychobiologicla' model was described and articulated by the Australian psychiatrist Niall McLaren.
It consists of hormone releases, principally testosterone, when challenges arise. These rekeases are genetically governed and create psychological effects. The effects produce moods, feelings, and can provoke aggresssive and dominating behaviour.
The simplified model shows that on the perception of a challenging or threatening situation the testosterone level rises in men. Testosterone is a feel-good hormone that rewards aggression and domination with further releases. This mechanism is self-reinforcing, but can be tempered by personality factors and institutional constraints. As these are primeval processes and effects that are always present when challenges occur, the psychobiological model serves as excellent tool for understanding and interpreting conflicts.
