Although many people are raised hearing their parents say that they are perfect just the way they are, many people develop body image distortion, which can cause eating disorders. Psychologists have been trying to establish overarching theories supporting why people develop eating disorders, and while time has passed, different theories have become accepted and then rejected. Finding why individuals develop eating disorders is important, because if scientists can understand what causes them, the development can be stopped. Once Scientists understand why people develop this sickness, society can stop their pain and suffering. This article, by Donald Williamson, explores cognitive-behavioral theories concerning eating disorders.
One theory model says that the major factors of eating disorders are the body self-schema, cognitive biases, binge eating, compensatory behavior, negative reinforcement of compensatory behavior by reduction of negative emotion, and these are psychological risk factors that people who have eating disorders are believed to have. Although many people are not familiar with these terms, they are pretty easy to understand, and they are all related. A body self-schema is the belief that a person has about the way that they look. The body self-schema is a very important part of the model of this theory. Theorists believe that a risk factor for eating disorders is an over concern with an individual’s body size and shape that can be agitated by external and internal cues. Many of these cues have to do with food. A cognitive bias is a pattern of deviation in judgment that can lead to irrationality. Binge eating is when an individual suffers from episodes of uncontrollable eating. Compensatory behaviors are behaviors that are believed to ‘undo eating’. Negative reinforcement is taking something away so that a behavior will be increased. All of these things are related for eating disorders because if an individual believes that they look a certain way, and then they have an irrational belief system that leads them to unrealistic expectations to lose weight, and then they develop an eating disorder, and they binge, and then to compensate for that behavior, they can do things like purge themselves or take pills, and then they avoid eating because it makes them feel guilty. When the ideas are broken down, it’s quite simple. Some other psychological risk factors of this model for eating disorders are a fear of being fat, an over concern with body size and shape, an internalization of a thin ideal and shape, and a perfectionist and obsession with their image.
There are several cognitive biases that psychologists believe are used by those with eating disorders, and these biases maintain and reinforce their belief systems. Some psychologists have hypothesized that those individuals with eating disorders will listen to stimuli concerning food differently than those without eating disorders. One method that is used to test this hypothesis uses words related to eating, weight, and shape to test for cognitive interference. The results of the test show that by comparison, people with anorexia or bulimia respond slower to food related words. Another way of testing this hypothesis is called a dichotic listening task. This test finds that in individuals with eating disorders, selective information processing is used. The results of these tests suggest that people with eating disorders are more likely to listen to information about weight. This hypothesis is known as an attention bias. Another hypothesis is called the memory bias, which essentially means that individuals with eating disorders more readily encode into their memory information that regards weight. To test this, researchers presented a list of words that were neutral, words that referred to a fat body, and words to refer to a body that was not fat, and they found that those with eating disorders were able to remember more words about a fat body than the control group. One bias hypothesis is known as the selective interpretation bias. The selective interpretation bias is where a person interprets the information that they receive in a way that justifies their body self schema. The idea behind this is that even though someone with an eating disorder is receiving neutral information, they turn the information in such a way that it matches their beliefs.
A ‘good’ physical appearance is the goal of many people because in today’s society, every day we are shown images of what we are supposed to look like. Some psychologists believe that a common denominator of those with eating disorders is that there is a great gap between what people believe they look like, and what they actually look like. Many psychologists also theorize that an extreme drive for thinness and over valuing the importance of physical appearances is used to achieve and then maintain eating disorders. Many of the people surrounding an individual with an eating disorder are unknowingly supporting the thin ideal, and therefore giving justification to the eating disorder.
Although there are many theories and hypotheses on why individuals have eating disorders, it is a very difficult topic to study because many cases are so different. Maybe one day, scientists will be able to figure out why people are affected by eating disorders, but for now, much more research still needs to be done.