Final answer:
The idea that individuals who make eye contact do not have ASD is a myth. Eye contact is not a definitive indicator of ASD, and the exact causes of ASD are still not fully understood despite extensive research.
Step-by-step explanation:
The assertion that individuals who make eye contact do not have ASD (Autism Spectrum Disorder) is a myth. While some people with ASD may have difficulty with eye contact, it is not a definitive indicator as many individuals on the spectrum may learn to make eye contact or might naturally do so. Autism Spectrum Disorder is a complex neurodevelopmental condition, and its symptoms vary widely among those affected. Making eye contact cannot be used as an exclusive measure to determine the presence or absence of ASD.
The subject of ASD's causes is an exceptionally intense debate, and despite millions of hours of research, the exact causes remain uncertain. The question of whether autism is x-linked was challenged by suggesting that other evidence indicates autism is not x-linked, leading to a need for an alternative explanation to account for the data observed.