The goal of this observational clinical study is to assess whether receiving genetic information about the origins of autism and related neuropsychiatric disorders, either at a population level or as individual information after genetic testing, can improve understanding of their condition, well-being, and empowerment in adolescents and young adults with autism spectrum condition (ASC). The main questions to answer are:
* Does a genetic counseling session improve participants' understanding of autism and its origins, well-being, and empowerment as measured by the modified Genetic Counseling Outcome Scale (mGCOS-24)?
* Is the outcome modified by mental health indicators such as anxiety and depression measures, and does the information improve these?
* We will also assess how genetic knowledge and beliefs before the genetic information session affect the main outcome of the mGCOS-24 change.
The comparison will be made between the group receiving a 1.5-hour genetic counseling session with a clinician and a group receiving general genetic information via leaflet by email to see if the genetic information session by the clinician leads to greater improvements in understanding, empowerment, and well-being.
Participants will:
* Answer basic demographic questionnaire as well as a questionnaire about genetic knowledge and beliefs
* Be randomized to receive a 1-1.5 hour genetic counseling session in person or online, or general genetic information via leaflet.
* Complete pre- and post-intervention questionnaires, including the mGCOS-24, GAD-7, and PHQ-9.