Genetics and neurodevelopmental factors determine human right-handed dominance
the verdict
SUPPORTED
the evidence backs this
confidence 75/100
Current genetic and neurodevelopmental research indicates that human handedness and cerebral lateralization are strongly determined by early biological and genetic-developmental programs.
Evidence for · 4
Non-right-handedness and psychiatric disorders: A synthesis of epidemiological, genetic, and neurobiological evidence.
2026 · cited by 0
Paper 1 notes that neurodevelopmental factors and shared genetic predispositions are heavily implicated in non-right-handedness and altered brain lateralization.
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More for · 3
The genetic relationship between handedness and neurodevelopmental disorders.
2014 · cited by 0
Paper 6 explains that handedness is tied to biological pathways and genetic mechanisms that establish left/right body and brain asymmetry during development.
Human Lateralization, Maternal Effects and Neurodevelopmental Disorders.
2021 · cited by 0
Paper 8 highlights that behavioral laterality and hemispheric asymmetries stem from complex biobehavioral systems where genetic factors act as key developmental determinants.
Exploring human brain lateralization with molecular genetics and genomics.
2015 · cited by 0
Paper 11 states that human brain and motor lateralizations arise early in gestation from asymmetrical genetic-developmental programs.