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Fig. 1 | Molecular Autism

Fig. 1

From: Etiological influences on the stability of autistic traits from childhood to early adulthood: evidence from a twin study

Fig. 1

Bivariate twin model showing parameter estimates. The single-headed arrows connecting the circular (latent) variables to the observed variables show the proportion of each trait explained by A and E. The double-headed arrows connecting the latent variables show the correlation between these variables. Sibling interaction pathways not shown. A-TAC Autism-Tics, AD/HD and other Comorbidities Inventory, A additive genetic influence, E nonshared environmental influences

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