New research suggests emotional control is a normal challenge. Therefore, individuals experiencing an emotional instability diagnosis fall on the extreme of the normal population continuum.
That is, if you are at the far end of the spectrum then you will probably have trouble managing emotions.
The position explains the fact that we all vary in how often we become happy, sad, or angry, and also in how strongly these emotions are expressed. This variability is a part of our personality and can be seen as a positive aspect that increases diversity in society.
However, there are people that find it so difficult to regulate their emotions that it has a serious impact on their work, family, and social life. These individuals may be given an emotional instability diagnosis such as borderline personality disorder or antisocial personality disorder.
Prior research has shown that people diagnosed with emotional instability disorders exhibit a decrease in the volume of certain brain areas.
In the new study, researchers wanted to know if these areas are also associated with the variability in the ability to regulate emotions that can be seen in healthy individuals.
Investigators provided 87 healthy subjects with a self-rating clinical questionnaire to determine the degree to which problems regulating emotions influence their everyday lives. The brains of the subjects were then scanned with MRI.
The scientists found that an area in the lower frontal lobe, the so-called orbitofrontal cortex, exhibited smaller volumes in the healthy individuals that reported that they have problems with regulating emotions.
The greater the problems, the smaller the volume detected. The same area is known to have a smaller volume in patients with borderline personality disorder and antisocial personality disorder. Similar findings were also seen in other areas of the brain that are known for being important in emotional regulation.
“The results support the idea that there is a continuum in our ability to regulate emotions, and if you are at the extreme end of the spectrum, you are likely to have problems with functioning in society and this leads to a psychiatric diagnosis”, says Associate Professor Predrag Petrovic, first author of the study at the Department of Clinical Neuroscience, Karolinska Institutet.
“According to this idea, such disorders should not be seen as categorical, that you either have the condition or not. It should rather be seen as an extreme variant in the normal variability of the population”.
The study appears online in the journal Social Cognitive and Affective Neuroscience.
Source: Karolinska Institutet/EurekAlert