Directed Neural Network Dynamics in Sensorimotor Integration: Divergent Roles of Frontal Theta Band Activity
Adriana Böttcher1,2, Saskia Wilken1, Markus Raab3,4
1Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Dresden 01307, Germany.
Summary
Adults show enhanced brain communication for sensorimotor integration compared to adolescents. Brain maturation improves directed theta band activity (TBA) and connectivity, crucial for tasks like driving.
Area of Science:
- Neuroscience
- Developmental Neuroscience
Background:
- Sensorimotor integration is vital for daily activities.
- Theta band activity (TBA) in brain networks supports sensorimotor integration.
- Brain maturation during adolescence shapes neural communication.
Purpose of the Study:
- To investigate how age-related brain maturation influences directed communication in theta-associated sensorimotor networks.
- To compare sensorimotor integration performance and neural communication between adults and adolescents.
Main Methods:
- Electroencephalography (EEG) study with a continuous pursuit-tracking task.
- Comparison of adult (n=41) and adolescent (n=30) groups.
- Analysis of theta band activity and directed connectivity.
Main Results:
- Both groups exhibited elevated TBA during high sensorimotor demands.
- Adults outperformed adolescents, especially under higher demands.
- Adults showed enhanced frontal-to-ventral stream connectivity for visual-motor integration; adolescents relied on frontal TBA for surprise/prediction error signaling.
Conclusions:
- Age-related brain maturation enhances directed connectivity for sensorimotor integration.
- Differences in neural communication, particularly frontal-ventral pathways, explain performance disparities.
- TBA plays distinct, age-dependent roles in sensorimotor integration, highlighting maturation's impact.
