A new study conducted by researchers from the University Medical Center Hamburg and Innlandet Hospital Trust has shed light on the link between autism traits, social withdrawal, and emotional problems in adolescents with rare genetic disorders. The study, published in Research in Developmental Disabilities, highlights the significant impact of social withdrawal in this vulnerable population, revealing its critical role in the development of internalising problems such as anxiety and depression.
The study analysed a cohort of 93 Norwegian adolescents aged 10 to 17, who had various rare genetic disorders, including Fragile X syndrome, 16p11.2 and 22q11.2 duplication and deletion syndromes, as well as sex chromosome aneuploidies. These conditions are known to increase the likelihood of autism traits, such as difficulties with social interaction and communication.
The researchers found that autism traits – both current and lifelong – were strongly associated with social withdrawal in these adolescents. Social withdrawal, defined as voluntary self-isolation from others, was found to mediate the relationship between autism traits and internalising problems. This means that adolescents who displayed more autism traits were more likely to experience social withdrawal, which in turn led to higher rates of anxiety, depression, and other emotional issues.
What is particularly noteworthy is that social withdrawal was found to fully mediate the link between lifetime autism traits and internalising problems. In other words, the entire relationship between long-term autism traits and emotional issues could be explained by the presence of social withdrawal. For current autism traits, social withdrawal was found to partially mediate this link, indicating that other factors may also be at play.
The findings have important implications for the clinical treatment of adolescents with rare genetic disorders and autism traits. By addressing social withdrawal early on, clinicians may be able to prevent or reduce the onset of anxiety and depression in these individuals. The study emphasised that social withdrawal could serve as an early warning sign of more serious emotional problems and suggested that interventions aimed at reducing isolation could improve mental health outcomes.
The study also found significant gender differences, with male adolescents displaying higher levels of autism traits and social withdrawal compared to their female counterparts. This is consistent with previous research, which suggests that girls with autism spectrum traits may be better at compensating socially and may mask their symptoms more effectively than boys.
The research provides a new perspective on how autism traits interact with social and emotional factors in adolescents with rare genetic disorders. The researchers concluded that focusing on social withdrawal in clinical settings could represent a valuable tool in preventing the escalation of internalising problems, particularly for those at risk due to their genetic condition.
