Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder characterized by challenges in social development, communication skills, and restricted interests. While ASD itself presents unique hurdles, individuals on the spectrum are often confronted with the added burden of co-occurring mental health problems.
This occurs when new problems or behaviours are attributed solely to ASD, and the presence of another disorder is not recognized. All concerning behaviours are attributed to the known ASD diagnosis, potentially leading to missed diagnoses.
Behaviours signaling the development of a mental health condition may be perceived as an exacerbation of long-standing behavioural difficulties, rather than a new, separate issue. This can lead to a delay in identifying and addressing mental health concerns.
Many mental health diagnoses rely on a person’s ability to describe internal feeling states. Because individuals with ASD often struggle to describe their feelings, it can be harder to diagnose their mental health problems.
Symptoms of ADHD include hyperactivity, impulsivity, distractibility, forgetfulness, difficulty focusing, organizational problems, and careless errors. Many of these symptoms are also associated with ASD. An additional diagnosis of ADHD should be considered when ADHD symptoms are more frequent, intensive or disruptive than expected for the person’s age (chronological and mental/developmental age).
Individuals with ASD may struggle to verbally express feelings of anxiety, worry or fear. However, anxious people may avoid specific situations, or become very distressed when they are required to face specific situations. Signs of anxious distress in ASD can include crying, tantrums, refusal to cooperate, repetitive questions, reassurance seeking, increasing reliance on rules or scripts, and heightened focus on special interests. These signs may indicate the need for additional support or treatment to cope with anxiety.
Depression in individuals with ASD may manifest as changes in activity levels (e.g., either increased agitation or reduced activity), self-injury, temper outbursts, loss of interest in previously enjoyed activities, and changes in sleeping or eating patterns.
Center for Autism and Related Disabilities at the University of South Florida. Autism and Mental Health Issues: A Guidebook on mental health issues affecting individuals with Autism Spectrum Disorder.
http://card-usf.fmhi.usf.edu/docs/resources/CARD_ASDMH_Brochure092109.pdf
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