Alternative explanations

    Cards (4)

    • The theory lost its acceptance after a twin study
    • Folstein and Rutter
      looked at ASD in twins and found that if one MZ twin had ASD there was a 36% chance that the other twin also had it.For DZ twins there was a 0% chance
    • provided evidence that genetics played a major role in ASD
    • Led to a wider acceptance that ASD is mainly a genetic or biological disorder
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