Previous research has shown that personality traits such as impulsivity or compulsiveness are indicators of an increased risk of addiction. Now, new research suggests that these impulsive and compulsive personality traits are also associated with a traumatic upbringing during childhood.
Led by Doctor Karen Ersche, the researchers aimed to identify risk factors that make a person vulnerable to developing drug dependence. They examined 50 adults with cocaine dependence together with their biological brothers and sisters who have never abused drugs. All participants underwent extensive assessments of their personalities, including their ways of feeling and thinking. The researchers were also interested in negative experiences that participants may have had during childhood (to include physical, emotional or sexual abuse).
Ersche said: "It has long been known that abusive experiences during childhood have long-lasting effects on behaviour in adulthood and this was confirmed by our results. The siblings had more troubled childhoods compared to healthy peers in the community, and we also found a direct relationship between traumatic childhoods and their personalities."
She added: "This relationship is interesting because impulsive personality traits are known to increase the risk of becoming addicted to drugs but it is not an excuse for drug-taking."
The childhoods of the brothers and sisters of the cocaine-dependent individuals were also traumatic, and they also exhibited higher-than-normal levels of impulsive and compulsive behaviours, but they did not abuse drugs.
The researchers next intend to explore how the siblings who do not abuse drugs managed to deal with their traumatic childhoods and their highly impulsive and compulsive personalities. The scientists want to understand what makes the siblings resilient against addiction. A better understanding of what protected the brothers and sisters from drug abuse may provide vital clues for developing more effective therapeutic interventions for those trying to beat their addiction.
MEDICA.de; Source: University of Cambridge