Early ID Study Lisa Bayrami Stanley Greenspan Devin Casenhiser

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Early ID StudyLisa BayramiStanley
GreenspanDevin Casenhiser
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Early ID Study

• Retrospective video review of typical children
  and those with ASD
• Coding of home video tapes

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Early ID Study

• Earliest Occurrence of Significant Developmental
  Events
• Reviewed videos to find earliest occurrence of
  the following
• social smile
• cooing
• reduplicated babbling (e.g., baba or gaga)
• complex babbling (e.g., bada or badaga)

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Early ID Study

• Typical Means
• About 70 of the TD kids show their first
  purposeful interaction (not necessarily an
  initiation) before 10 months. At the same time
  about 70 of ASD kids show their first
  interaction (again, not necessarily an
  initiation) after 10 months.
• About 70 of the TD kids show their first social
  smile before the age of 3 months. 86 of the ASD
  group shows their first social smile (if at all)
  after 3 months.
• For complex babbling, there were no segments
  before 2 years (when we stopped coding) in which
  children with ASD produced complex babbling
  (bada as opposed to reduplicated babbling
  baba) on tape. About 67 of the typical
  children showed complex babbling on tape before
  12 months.

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Early ID Study

• Interaction Types
• 1.5 minute segments were reviewed at 2.5 to 3.5
  months of age to determine whether there was a
  difference in the number of interactions of the
  following types of interactions
• Eye contact alone
• Eye contact plus vocalization
• Eye contact plus arm/leg movement
• Eye contact plus vocalization plus arm/leg
  movement

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Marginally significant difference
Significant difference