Personality and its disorders
Personality is a difficult concept to define: it is extremely hard to encapsulate what makes a person ‘who they are’ in general terms. Personality is typically thought of as the set of characteristics which make us think, feel, and act in our own unique way. Personality is pervasive; people tend to behave in similar ways throughout life and across differing social and interpersonal contexts. The characteristics of personality, called traits, are a set of common features which are observed in variable degrees in different people. Traits provide a useful structure in which to describe a personality: Box 31.1 shows some common personality traits. Some traits may be perceived as an asset to the individual, while others are more of a nuisance. We all have a little more or a little less of any given trait. The word ‘temperament’ rather than personality is used to describe the behavioural characteristics displayed by young children. This is because our personality takes time to develop; it is shaped by a multitude of environmental, biological, and factors which interact throughout early life. By our late teens or early twenties, the majority of individuals have the set of traits which define the personality we will have for the rest of our lives. Having an understanding of an individual’s personality helps clinicians to predict their patients’ response to illness and its treatment. The majority of us have some less favourable aspects to our personality, but we work around them and/ or have more prominent favourable traits that allow us to get on with our lives. For a minority of people, their less favourable traits are so prominent that they cause problems for themselves or for those around them. It is these people who we think of as having a personality disorder. It is extremely difficult to draw a line between normal personality and personality disorder, so this simple pragmatic approach is helpful in clinical practice. People with a personality disorder may: … ● have difficulties with social situations and relationships; ● have difficulties controlling their feelings and/ or behaviour; ● react in unusual ways to illness or to treatment; ● behave in unusual ways when mentally ill; ● have more extreme or unusual reactions to stressful events; ● behave in ways that are detrimental to themselves or others ● be more prone to developing other types of mental disorder.