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Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
Published on: October 24, 2012
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Developmental alterations in the neural oscillatory dynamics underlying attentional reorienting
Giorgia Picci1, Lauren R Ott2, Nathan M Petro1
1Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE, USA; Center for Pediatric Brain Health, Boys Town National Research Hospital, Boys Town, NE, USA.
Developmental Cognitive Neuroscience
|August 11, 2023
Summary
This study reveals how brain activity, specifically theta and alpha-beta oscillations, supports attention reorienting in youth. Findings show age-related changes in these neural processes, offering new insights into cognitive development.
Area of Science:
- Neuroscience
- Developmental Psychology
- Cognitive Science
Background:
- Flexible attention allocation develops throughout adolescence.
- Neural mechanisms of attention reorienting in youth are not fully understood.
- Previous research indicates age-related improvements in attentional reorienting.
Purpose of the Study:
- To investigate the neural dynamics of attention reorienting in healthy youth.
- To examine age-related changes in brain activity during attentional tasks.
- To identify specific brain networks and oscillatory patterns involved in attention development.
Main Methods:
- Magnetoencephalography (MEG) was used to record brain activity in 80 healthy youth (6-14 years old).
- Data were analyzed in the time-frequency domain to assess oscillatory responses.
- Brain activity was imaged in anatomical space during a Posner attention-reorienting task.
Main Results:
- Youth engaged fronto-parietal and visual networks during attention reorienting, particularly in theta and alpha-beta frequency bands.
- Age was associated with increased theta oscillatory activity in prefrontal regions.
- Alpha-beta responses showed limited age- and validity-related effects.
- Theta oscillations correlated with attention-related symptomology across brain networks.
Conclusions:
- This study provides the first evidence of spectrally-specific neural oscillations related to flexible attention allocation during development.
- Findings highlight the role of theta and alpha-beta oscillations in the maturation of attentional control.
- The results offer a deeper understanding of the neural basis of cognitive development in attention.
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