Development of Infant Sitting Postural Control in Three Groups of Infants at Various Risk Levels for Autism Spectrum...

Area of Science:

• Developmental neuroscience
• Autism spectrum disorder (ASD) research
• Infant motor development

Background:

• Autism spectrum disorder (ASD) is a neurodevelopmental condition impacting social communication.
• Understanding early developmental trajectories, including motor control, is crucial for identifying risk factors.
• Sitting postural control is a foundational motor skill that develops in infancy.

Purpose of the Study:

• To investigate sitting postural control development in infants at elevated risk for ASD compared to typically developing infants.
• To examine the association between early sitting posture and later cognitive, language, and communication skills.
• To identify unique developmental pathways associated with ASD risk.

Main Methods:

• Longitudinal study tracking infants from sitting onset to independence, and at 12 and 18 months.
• Utilized a portable force platform to measure sitting posture (center of pressure).
• Administered assessments for communication, cognitive, and social behavior.

Main Results:

• Infants at elevated ASD risk exhibited distinct postural control at the onset of sitting.
• No significant differences were found in the developmental trajectory of sitting posture between groups.
• Significant communication differences emerged between groups, with postural control changes correlating with later skills.

Conclusions:

• Early postural control may serve as an indicator, though not a sole predictor, of later developmental differences in at-risk infants.
• The study underscores the need to examine diverse at-risk populations to understand varied developmental pathways in ASD.
• Investigating the interplay between motor skills and communication is vital for early identification and intervention strategies in ASD.