Spatial and Temporal Distribution of Information Processing in the Human Dorsal Anterior Cingulate Cortex
Conor Keogh1, Alceste Deli1, Amir Puyan Divanbeighi Zand1
1Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom.
Frontiers in Human Neuroscience
|April 4, 2022
Summary
The dorsal anterior cingulate cortex (dACC) is a key cognitive region. This study reveals a distributed network within the dACC that integrates learning and feedback responses during decision-making.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Computational Neuroscience
Background:
- The dorsal anterior cingulate cortex (dACC) is a crucial hub in the human salience network, involved in motor control, pain processing, and emotional regulation.
- Understanding information flow dynamics and input responses within the dACC is challenging due to its complexity and limitations of non-invasive electrophysiology.
Purpose of the Study:
- To investigate the spatial and temporal distribution of information flow within the dACC.
- To elucidate how the dACC network responds to external inputs and feedback during a decision-making task.
Main Methods:
- Local field potentials were recorded from the dACC in human subjects during a decision-making task requiring motor output, utilizing data from deep brain stimulation surgery.
- Analysis focused on the spatial and temporal patterns of information flow within the dACC network.
Main Results:
- A distributed network was identified within the anterior cingulate cortex, characterized by discrete nodes exhibiting directed communication following inputs.
- The dACC network demonstrated anticipatory and responsive activity to the valence of feedback associated with actions.
- Observed adaptations in network dynamics indicated learning processes within the dACC.
Conclusions:
- The findings provide evidence for a dynamic, distributed network within the dACC that integrates feedback and learning.
- This research highlights the dACC's role in cognitive functions beyond motor and pain processing, emphasizing its involvement in decision-making and adaptive behavior.
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