Temporal Course of Interference Control from Early to Late Young Adulthood: An ERP Study

Area of Science:

• Neuroscience
• Cognitive Development
• Developmental Psychology

Background:

• Interference control is crucial for cognitive function.
• The maturation of neural mechanisms underlying interference control extends beyond adolescence.
• Understanding the developmental trajectory of interference control is essential for cognitive theories.

Purpose of the Study:

• To investigate the neural dynamics of interference control across different stages of young adulthood.
• To examine age-related differences in event-related potentials (ERPs) associated with interference control.
• To reveal the time course of interference control development from late adolescence to early thirties.

Main Methods:

• Utilized a Stroop task to assess interference control.
• Employed event-related potentials (ERPs) to measure neural activity.
• Analyzed data from three age groups: 19-21, 23-27, and 28-44 years old.

Main Results:

• Significant age differences were observed in accuracy and ERP amplitudes (P2, N2, P3, N450) related to selective attention, conflict monitoring, and evaluation.
• Younger adults (19-21 and 23-27) made more errors on incongruent trials than older adults (28-44).
• Participants in their early twenties exhibited higher P2/N2 amplitudes and diminished P3/N450 amplitudes, suggesting limited top-down control resources.

Conclusions:

• Neural dynamics of interference control continue to develop into early adulthood.
• Ongoing development of the frontoparietal network impacts cognitive abilities and performance.
• Findings challenge existing models of cognitive development and necessitate revised developmental theories.