Processing of intentional and automatic number magnitudes in children born prematurely: evidence from fMRI

Area of Science:

• Neuroscience
• Developmental Psychology
• Cognitive Science

Background:

• Premature birth can affect cognitive development, including numerical cognition.
• Understanding the neural basis of number processing in this population is crucial.

Purpose of the Study:

• To investigate the neural correlates of intentional and automatic number processing in preterm children.
• To examine how risk factors (gestational age, birth weight) influence brain activation patterns.
• To explore the relationship between math proficiency and brain activity in distinct number processing tasks.

Main Methods:

• Functional magnetic resonance imaging (fMRI) was used to measure brain activity.
• Number comparison task (intentional) and physical Stroop task (automatic) were employed.
• Behavioral data analyzed for numerical distance and size congruity effects.

Main Results:

• Both intentional and automatic number processing showed overlapping fronto-parietal activation.
• Gestational age and birth weight were associated with a shift in activation from frontal to parietal regions.
• Math proficiency correlated with specific parietal lobe fMRI signals, varying by task.

Conclusions:

• Intentional and automatic number processing share common neural resources but also exhibit distinct patterns in preterm children.
• Brain activation shifts with risk factors, highlighting neurodevelopmental differences.
• Parietal lobe activity is critical for math proficiency, with task-specific neural signatures.