Executive function of children with extremely low birthweight: a case control study

Area of Science:

• Developmental Psychology
• Neuroscience
• Pediatrics

Background:

• Extremely-low-birthweight (ELBW) is associated with potential neurodevelopmental challenges.
• Executive functions (EF) are crucial for academic success and daily functioning.
• Understanding EF in ELBW children is vital for early intervention.

Purpose of the Study:

• To compare executive function skills in school-aged extremely-low-birthweight (ELBW) children versus their normal-birthweight peers.
• To identify specific executive function deficits in ELBW children.
• To explore the relationship between early cognitive scores and later executive function in ELBW individuals.

Main Methods:

• Utilized a cohort of 30 ELBW children and 50 control children (mean age 62 months).
• Administered standardized executive function tests: Tower of Hanoi, Finger Sequencing, and Tapping Test.
• Assessed cognitive abilities using the Peabody Picture Vocabulary Test-Revised and McCarthy Scales of General Ability.

Main Results:

• ELBW children scored significantly lower on all executive function tasks compared to controls.
• Deficits were observed even in ELBW children with higher cognitive scores (above 1 SD below the mean on PPVT-R).
• Limited correlation was found between executive function and earlier general intelligence scores in ELBW children.

Conclusions:

• ELBW children are at heightened risk for executive function deficits, including planning, sequencing, and inhibition.
• These executive function impairments may negatively affect learning and academic performance.
• Early identification of EF challenges in ELBW populations is critical for targeted support.