The first main division is based on the nurturing aspect. This was originally rooted in the idea of behaviorism with the concept that everything a person undergoes is the result of learning. Different styles of learning accompany different stages of development (Piaget’s stages of development). This also influences the way in which a person develops socially, with different impasses, which must be reached in order for normal development to occur (Erikson’s Psychosocial Stages of Development). There are also a number of sociological theories, which show how humans behave in reaction to societal norms. One example is through culture. A culture is a group with set characteristics, customs, etc. that create the identity. In African cultures, poverty is considered a sociological norm. This creates a learned helplessness in which they have no aspiration to break out of their social classes. Thus, society has shaped the development of the individual, which has in turn influenced the behavior and personality (Shepard, 2009).
The nature division of the debate in our development relies on a deterministic perspective. Biological coding through genes encodes for all behaviors and reflexes that occur. These are facilitated through complex biochemical reactions, which occur all throughout human physiology. This is why some people are more prone to certain behavioral abnormalities such as alcoholism than others.