as symptomatic of autism. In some nations, such as South Korea, the stigma surrounding autism is so high that families may avoid getting their child tested for autism even when the child has noticeable developmental delays. Elsabbagh and colleagues (2012) cite multiple challenges for researchers, including lack of funding for research. The 10/90 gap means that only 10 percent of global spending on health goes toward funding for problems that affect the poorest 90 percent of the world. They also discuss the lack of accessibility or availability of autism services, the expensive cost of resources for epidemiological studies, and variation in diagnosis because clinical judgment is often used for diagnosis. Autism research is further complicated by the fact that families often have different perceptions of autism's etiology. Beliefs include the child being a product of witchcraft or parental misdeed or sin. Positive appraisals include parents' beliefs that the child is a blessing to show that the parents are worthy of taking care of such a child. Negative appraisals of what autism means and its etiology can cause increased stress in families of children with autism. Autistic culture An autistic culture has emerged, accompanied by a number of movements and events that encourage greater tolerance of those with autism. Prominent movements include the autistic rights movement and neurodiversity movement which seek to promote the idea that autism is a difference rather than a disease. Events include World Autism Awareness Day, Autism Sunday, Autistic Pride Day, Autreat, and others. Autism rights movement The autism rights movement, also known as the autistic culture movement or the neurodiversity movement, is a social movement within the context of disability rights that emphasizes the concept of neurodiversity, viewing the autism spectrum as a result of natural variations in the human brain rather than a disorder to be cured. The autism rights movement advocates a variety of goals, including greater acceptance of autistic behaviors; therapies that focus on coping skills rather than imitating the behaviors of neurotypical peers; the creation of social networks and events that allow autistic people to socialize on their own terms; and the recognition of the autistic community as a minority group. Autism rights or neurodiversity advocates believe that the autism spectrum should be accepted as a natural expression of the human genome. This perspective is distinct from two other likewise distinct views: the medical perspective, that autism is caused by a genetic