This question has formed one of the most interesting and ongoing debates over time. It has been posed over a number of years, in various forms, however in essence is based around the nature versus nurture debate. In other words are we born with certain characteristics, or are we like sponges and acquire them throughout our lives? Carlson and Buskist (1997) neatly summarise this debate, whilst also pointing out that, as with the various other aspects of psychology, what initially appear to be clear-cut distinctions are in fact rather blurred. They pose the questions of whether personality is caused by biological or social factors', innate or learned', or as a result of hereditary or cultural influences'? However, most modern psychologists consider the nature-nurture issue to be a relic of the past. That is, they believe that all behaviours, talents, and personality traits are the products of both types of factors: biological and social, hereditary and cultural, physiological and environmental. The task of the modern psychologist is not to find out which of these factors is more important but to discover the particular roles played by each of them and to determine the ways in which they interact.

Nurture

Although a combination of factors need to be taken into account when considering this question; learnt behaviour sits heavily on the side of the nurture debate, and is primarily seen as a social influence. Learnt behaviour suggests that we learn through, experiences, family, friends, the media, and much more. The fact that we learn behaviour suggests that we are able to unlearn behaviour in the same way.

Social Learning Theory (SLT) is a concept that is primarily associated with the work of Albert Bandura, and suggests that behaviours of any sort may be learned by observing others. Those individuals who are observed are known as models, and whether a person will be selected as a model depends on a range of variables including their status. Furthermore, whether or not a model's behaviour will be imitated depends chiefly on the consequences of their actions, and if they are seen to be reinforced for their behaviour, then the observer is more likely to imitate them. Conversely, if the model is seen to be punished, the observer is less likely to imitate their behaviour (these processes are called vicarious reinforcement and punishment).

Learning theories suggest that individuals can change. However, this change depends on certain influences that an individual

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