Infants later diagnosed with autism have lower canonical babbling ratios in the first year of life.

ABSTRACT:

Background

Canonical babbling-producing syllables with a mature consonant, full vowel, and smooth transition-is an important developmental milestone that typically occurs in the first year of life. Some studies indicate delayed or reduced canonical babbling in infants at high familial likelihood for autism spectrum disorder (ASD) or who later receive an ASD diagnosis, but evidence is mixed. More refined characterization of babbling in the first year of life in infants with high likelihood for ASD is needed.

Methods

Vocalizations produced at 6 and 12 months by infants (n = 267) taking part in a longitudinal study were coded for canonical and non-canonical syllables. Infants were categorized as low familial likelihood (LL), high familial likelihood diagnosed with ASD at 24 mon

SUBMITTER: Yankowitz LD 

PROVIDER: S-EPMC9235227 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature