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Abnormal Psychology
Exercise
Research the answers to the following questions:
1. What is abnormal in terms of psychology?
2. Who decides what is normal and what is not?
3. What kind of criteria are used to decide what is psychopathological?
4. List three main psychopathological conditions that are considered to be abnormal
What is Abnormality?
There are several different ways in which it is possible to define abnormal as opposed to our ideas of what is normal. One way is the statistical approach which is based on the premise that abnormal behaviour is statistically rare. For example anxiety can be assessed using Spielbergers State-Trait Anxiety Inventory. The mean score for trait anxiety is 40 and people who achieve over 55 are seen as statistically rare as only 1 in 50 score that high. Therefore those with high scores are seen as deviant from the greater majority of the population.
The statistical approach helps to address what is meant by normal in a statistical context, but it still does not helps us define the term. There are many people who have high levels of anxiety, but would still not be categorised as clinically abnormal it is also equally true that people with very low scores on the anxiety scale are also statistically abnormal!
Social Deviance is emphasised by some psychologists as a measure of abnormal behaviour. This approach would see people who behave in a socially deviant way that makes other people uncomfortable should be regarded as abnormal. However there are problems inherent in this approach. For instance German citizens who objected to and spoke out against Nazi atrocities were seen as being socially deviant. It is also true to say that what is regarded as deviant varies from culture to culture. Kwakiutl indians burn valuable blankets in order to cast shame on their enemies, behaviour that would seem decidedly odd in Western culture.
So far both the approaches discussed only tell us a little about what we mean by abnormal. Abnormality is a complex concept that is difficult to define precisely. Abnormality can take many different forms and there is no single feature that can help us distinguish abnormality from normality. Rosenhan and Seligman (1989) propose seven major features of abnormality that appear in abnormal behaviour as opposed to normal behaviour. The more of these features that are possessed by the individual, the more likely they are to be considered abnormal.
Rosenhan and Seligmans Seven Features
One of the problems with using the seven features of abnormality is that they rely on subjective judgements and it can be quite difficult to decided which of the features are actually present in a persons behaviour. One family may try to commit an elderly relative because of eccentric behaviour which other people may find harmless.
The Diagnostic Statistical Manual of Mental Disorders (DSM-III-R) is used by psychiatrists to help diagnose mental disorders. It tries to distinguish between social deviance or non-conformity and mental disorder or abnormality stating:
Neither deviant behaviour, e.g. political, religious or sexual, nor conflicts that are primarily between the individual and society are mental disorders unless the deviance or condition is a symptom of a dysfunction (i.e. impairment of function) in the person (p.xxii).
Categorisation of mental disorders
Most psychiatrists and clinical psychologists accept that abnormality exists and that those individuals who exhibit abnormal symptoms should receive a diagnosis that labels the specific abnormality. This helps determine the appropriate form of treatment. This view has had a number of critics over the years, for instance Scheff (1966) argued that this form of labelling could actually create part of the symptoms (labelling theory)
The medical model
The medical model attempts to classify behaviours that are seen as abnormal, but this approach also has problems, in that while you can classify physical symptoms such as rashes or temperature, it is much harder to classify internal, mental symptoms, such as feeling depressed. Diagnostic Statistical Manual or DSM was introduced in America in order to help with classification. The original version was updated in 1968 and became DSM-II, which seemed to be unreliable as a tool for diagnosis, due to its imprecision. Once again it was updated in 1980 (DSM-III) and again in 1987 (DSM-III-R), with each version offers more precise definitions.
The Diathesis-stress approach
This approach is a general framework that argues that any mental disorder happens as a joint function of a pre-disposition towards the disorder (or diathesis) and stress. Therefore a person with a high diathesis or predisposition would need less stress to react in an abnormal way.
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last update April 5, 2003
© L.Cryer/Northern College 2000