On the role of the insula cortex in inhibitory control: insights from alpha and theta directed connectivity dynamics
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View abstract on PubMed
Summary
This summary is machine-generated.The insular cortex acts as a brain hub, directing information flow via alpha and theta brainwaves to control responses. This highlights its role in cognitive control and adapting behavior to new demands.
Area Of Science
- Neuroscience
- Cognitive Psychology
- Computational Neuroscience
Background
- Inhibiting prepotent responses is crucial for goal-directed behavior and adapting to environmental changes.
- Cognitive control involves intricate neural interactions, particularly theta and alpha brainwave activity, influencing information flow across brain regions.
Purpose Of The Study
- To investigate the role of the insular cortex in cognitive control and response inhibition.
- To elucidate the interplay of alpha and theta band activity in coordinating neural information flow during inhibitory tasks.
Main Methods
- Utilized beamforming and directed connectivity analysis on electroencephalography (EEG) data from 104 healthy participants.
- Examined alpha and theta band oscillations during tasks requiring response inhibition and cognitive control.
Main Results
- The insular cortex was identified as a central hub, mediating information flow between the anterior temporal lobe, inferior frontal cortex, and superior-medial frontal gyrus via alpha and theta oscillations.
- Alpha activity is linked to relevant stimulus selection, while theta activity is associated with reconfiguring perception-action associations for response inhibition.
- Elevated cognitive control demands showed a directed information flow from theta to alpha band activity within the insular cortex, suggesting its role in implementing inhibitory control.
Conclusions
- The insular cortex plays a key role in modulating stimulus-response mappings and perception-action reconfiguration.
- Directed information exchange between theta and alpha activity within the insular cortex is a critical mechanism for cognitive control and response inhibition.
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