Do psychological factors or genes determine human behaviour?
Basically, actually genes – although rarely in that they would directly affect our conscious and subconscious processes of evaluating information and thus determine our behaviour. However, they controlled the creation of our bodies, including our brains, and thus predetermined how our brains will respond to various stimuli that come to them through our senses. The traditional differentiation of nature vs. nurture is thus, basically, artificial – the behaviour of people is mostly determined by what they learn, i.e. culture; however, what we learn is predetermined by our genes.