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Signs of Autism in Children Ages 9 – 12 Months

Before your baby turns 1 year old, it is important to pay attention to whether they are meeting their developmental milestones. There are several reasons your child may not be meeting their developmental stages by 1 year old and one of these concerns could be autism.

In one study of the early signs of autism (known as the Avon study), researchers found that, among children later diagnosed with ASD, differences in social development, communication, and fine motor skills were evident at age 6-months and on.

Signs to look for include:

  • Lack of facial expression or social smile
  • Lack of attention to new faces
  • Not searching for sound with eyes
    Unaware of their name being called
  • Lack of laughter, squealing, or displays of affection
  • Lack of intention or ability to attract attention
  • Lack of interest in typical baby games like Peekaboo
  • Minimal babbling or lack of single words
  • Lack or limited use of gestures like waving, nodding, or pointing
  • Indifference to new environments or minimal exploration with eyes
  • Lack of interest or exploration with toys or objects
  • Delay in ability to sit, stand or crawl
  • Lack of interest in small children other than own siblings
  • Lack of interest in the activities of others
  • Unusual reactions to the way things sound, smell, taste, look, or feel

Also See:
Signs of Autism in Children Ages 6 – 9 Months
Signs of Autism in Children Ages 12 – 18 Months

Bolton, P. F., Golding, J., Emond, A., & Steer, C. D. (2012). Autism spectrum disorder and autistic traits in the Avon Longitudinal Study of parents and children: Precursors and early signs. Journal of the American Academy of Child & Adolescent Psychiatry, 51(3).

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