People with autism spectrum disorder (ASD) are more likely to be left-handed than people without ASD. This is part of a larger pattern of atypical handedness, which also includes mixed-handedness.
Neurodiversity
The idea that conditions like autism should be viewed as a diversity of brain function, rather than a disorder.
Atypical handedness
A higher prevalence of left-handedness, mixed-handedness, or non-right-handedness in people with ASD.
Brain development
Genes involved in brain development may link left-handedness and neurodiversity.
Cerebral structure
Atypicalities in the cerebral structure and lateralization for language in people with ASD may contribute to atypical handedness.
Research
A study found that people with ASD were 2.49 times more likely to be left-handed than people without ASD.
Another study found that people with ASD were 3.48 times more likely to be left-handed, 2.49 times more likely to be non-right-handed, and 2.34 times more likely to be mixed-handed.