The biological approach- behaviour is determined entirely by biological processes beyond our control, such as genetics, hormones, brain structure, and physiological processes e.g. brain scans show that people with OCD often have increased activity in the prefrontal cortex of the brain
The behaviourist approach- Behaviour is determined by conditioning from our environment e.g. being rewarded for working hard as a child, positively reinforces hard-working behaviours and makes you a hard worker.
AO3-consistent with our moral and legal intuitions
if determinism is correct, then we couldn't hold people morally responsible for their actions. This would make it unfair to e.g. send murderers to prison
Some experiments suggest humans do not have free will e.g. Soon et al (2008) used brain scans to measure brain activity as participants decided to press a button with either their left or right hand. The brain scans showed activity in the prefrontal and parietal cortex up to 10 seconds before the participants were consciously aware of their decision