Neural Markers of Attention at 6 Months Associate With Later Attentional Control Performance

Area of Science:

• Neuroscience
• Developmental Psychology
• Cognitive Science

Background:

• Attentional control is crucial for developing executive functions.
• Individual differences in attentional control may be stable from 6 months of age.
• Understanding infant neural processes of attention is vital.

Purpose of the Study:

• To investigate neural processes underlying attentional control in 6-month-old infants using electroencephalogram (EEG).
• To examine neural activity preceding looking behaviors in an attentional control task.
• To determine if 6-month neural markers predict 9-month behavioral measures of attentional control and executive function.

Main Methods:

• Analyzed EEG data from 59 6-month-old infants during an attentional control task.
• Examined neural activity (3-6 Hz and 6-9 Hz power, P1 ERP component) preceding looking behaviors.
• Correlated 6-month EEG markers with 9-month behavioral assessments (Freeze-Frame and A-not-B tasks).

Main Results:

• Frontal 3-6 Hz power was greater in trials where infants looked to a distractor versus not looking.
• Higher 3-6 Hz power (when not looking at distractor) at 6 months predicted less distractibility at 9 months.
• Higher 3 Hz power (when looking at distractor) at 6 months strengthened the prediction of 9-month behavior.

Conclusions:

• Frontal 3-6 Hz activity is implicated in infant attentional control.
• This neural activity may reflect processes like anticipatory attention and attention maintenance.
• 6-month EEG markers of attentional control show predictive validity for later cognitive development.