Format

Send to

Choose Destination
Evol Med Public Health. 2018 Sep 24;2018(1):213-216. doi: 10.1093/emph/eoy025. eCollection 2018.

Autism, evolution, and the inadequacy of 'spectrum'.

Author information

1
Department of Pathology, Case Western Reserve University, Cleveland, OH, USA.

Abstract

Lay Summary: Individuals diagnosed with autism display variation in many traits, such as interest and ability in social interaction or resistance to change. Referring to this variation as a 'spectrum', defined as a range of values along an axis, understates the extent of such variation and can foster incorrect inferences. In psychiatry, the currently accepted term for a developmental disability characterized by variably impaired social and communicative skills, repetitive behaviors, and restricted interests is "autism spectrum disorder." "Spectrum," typically refers to values of a variable distributed along a single dimension, incorrectly suggesting people with autism can be simply ranked as more or less 'autistic.' In fact, there are multiple traits that pertain to autism and that can vary somewhat independently, in part due to the evolutionary mechanisms that give rise to risk alleles. Therefore, a new and more accurate clinical descriptor should be adopted. I propose: autism-related disorders (ARD).

KEYWORDS:

dimension; fitness; genetic variant; phenotype; spectrum

Supplemental Content

Full text links

Icon for Silverchair Information Systems Icon for PubMed Central
Loading ...
Support Center