1

some data

heterogeneity

• what is heterogeneity
• why is important
• essentialist and nominalist

4 open specifiers

• DSM-5
• levels of intelligence, language, severity, and comorbidity

conclusion

• The widely acknowledged heterogeneity of the autism spectrum is not a biological fact of nature. Neither does it have the force of a scientific fact resulting from empirically and logically sound research.

2

Untitled Slide

• Global prevalence varies
• data source
• Geographical and cultural factors?

reference

• Chiarotti, F., & Venerosi, A. (2020). Epidemiology of autism spectrum disorders: A review of worldwide prevalence estimates since 2014. Brain Sciences, 10(5), 274. https://doi.org/10.3390/brainsci10050274
• Mottron, L., & Bzdok, D. (2020). Autism spectrum heterogeneity: Fact or artifact? Molecular Psychiatry, 25(12), 31783185.https://doi.org/10.1038/s41380-020-0748-y