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A developmental examination of medial frontal theta dynamics and inhibitory control
Stefon van Noordt1, Taylor Heffer2, Teena Willoughby2
1Department of Psychology, Mount Saint Vincent University, Halifax, NS, Canada; Department of Psychology, Brock University, St. Catharines, Ontario, Canada.
Insights
Medial frontal theta oscillations, crucial for action monitoring, show distinct phase-locked and non-phase-locked patterns in children and adolescents. These dynamics influence inhibitory control and cognitive development.
Area of Science:
- Neuroscience
- Developmental Psychology
- Cognitive Science
Background:
- Medial frontal theta-band oscillations are recognized indicators of action-outcome monitoring.
- Understanding developmental changes in neural dynamics related to cognitive control is essential.
Purpose of the Study:
- To investigate the relationship between phase-locked and non-phase-locked medial frontal theta power and inhibitory control in a large developmental sample.
- To explore how these theta dynamics contribute to age-related improvements in inhibitory control.
- To identify distinct patterns of theta dynamics associated with varying levels of cognitive function.
Main Methods:
- Analysis of electroencephalography (EEG) data from 432 children and adolescents (ages 9-16) during an inhibitory control task.
- Examination of both phase-locked and non-phase-locked medial frontal theta power.
- Application of a person-centered approach to identify latent classes based on theta dynamics.
Main Results:
- The increase in medial frontal theta power during inhibitory control was primarily driven by non-phase-locked dynamics.
- Non-phase-locked theta power partially mediated the positive effect of age on inhibitory task performance.
- A distinct latent class characterized by low phase-locked and high non-phase-locked theta showed superior inhibitory control, higher general cognitive function, and faster responses.
Conclusions:
- Non-phase-locked medial frontal theta dynamics play a significant role in inhibitory control and cognitive development during childhood and adolescence.
- Individual differences in theta dynamics, particularly the balance between phase-locked and non-phase-locked activity, are linked to cognitive efficiency.
- These findings have implications for understanding cognitive function in typical and atypical development, and potential links to psychopathology.
Abstract:
Medial frontal theta-band oscillations are a robust marker of action-outcome monitoring. In a large developmental sample (n = 432, 9-16 years), we examined whether phase and non-phase locked medial frontal theta power were related to inhibitory control among children and adolescents. Our results showed that the well-established increase in medial frontal theta power during inhibitory control was captured largely by non-phase locked dynamics, which partially mediated the positive effect of age on task performance. A person-centered approach also revealed latent classes of individuals based on their multivariate theta power dynamics (phase locked/non-phase locked, GO/NOGO). The class of individuals showing low phase locked and high non-phase locked medial frontal theta were significantly older, had better inhibitory control, scored higher on measures of general cognitive function, and were more efficient in their behavioural responses. The functional significance of phase and non-phase locked theta dynamics, and their potential changes, could have important implications for action-outcome monitoring and cognitive function in both typical and atypical development, as well as related psychopathology .
