Behavioral manifestations of autism in the first year of life.

  title={Behavioral manifestations of autism in the first year of life.},
  author={Lonnie Zwaigenbaum and Susan E. Bryson and Tracey Rogers and Wendy Roberts and Jessica A. Brian and Peter Szatmari},
  journal={International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience},
  volume={23 2-3},
In the interest of more systematically documenting the early signs of autism, and of testing specific hypotheses regarding their underlying neurodevelopmental substrates, we have initiated a longitudinal study of high-risk infants, all of whom have an older sibling diagnosed with an autistic spectrum disorder. Our sample currently includes 150 infant siblings, including 65 who have been followed to age 24 months, who are the focus of this paper. We have also followed a comparison group of low… CONTINUE READING
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