Adaptive Behavior and Executive Functioning in Children with Neurofibromatosis Type 1 Using a Mixed Design

Area of Science:

• Neuroscience
• Developmental Psychology
• Genetics

Background:

• Neurofibromatosis type 1 (NF1) is a genetic disorder impacting development.
• Children with NF1 often exhibit challenges in adaptive functioning compared to peers.
• Longitudinal data on adaptive behavior in NF1 is scarce.

Purpose of the Study:

• To investigate the longitudinal trajectory of parent-reported adaptive behavior in children with NF1.
• To explore the relationship between adaptive behavior and executive functioning in NF1.
• To characterize changes in adaptive skills from early childhood to school age.

Main Methods:

• Longitudinal assessment of adaptive functioning using the Scales of Independent Behavior-Revised.
• Evaluation of executive functioning with the Behavior Rating Inventory of Executive Function (BRIEF).
• Participants included children with NF1 assessed in early childhood and/or school age.

Main Results:

• Adaptive behavior in early childhood correlated with school-age adaptive behavior, though social/communication skills varied.
• Children with NF1 showed poorer adaptive functioning at school age compared to early childhood.
• Difficulties in overall adaptive behavior and motor skills increased over time.
• Executive functioning demonstrated cross-sectional associations and longitudinal predictive value for adaptive behavior.

Conclusions:

• This study provides crucial longitudinal insights into adaptive behavior patterns in NF1.
• Findings highlight the evolving challenges in adaptive functioning and the role of executive function.
• Results inform interventions aimed at supporting children with NF1.