The functional integration of the anterior cingulate cortex during conflict processing
Jin Fan1, Patrick R Hof, Kevin G Guise
1Laboratory of Neuroimaging, Department of Psychiatry, Mount Sinai School of Medicine, New York, NY 10029, USA. Jin.Fan@mssm.edu
Cerebral Cortex (New York, N.Y. : 1991)
|July 27, 2007
Summary
Conflict processing involves integrated brain networks, particularly the anterior rostral cingulate zone (RCZa) of the anterior cingulate cortex (ACC). This study reveals RCZa
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Brain Imaging
Background:
- Anterior cingulate cortex (ACC) activation during conflict processing is well-documented.
- Functional integration of ACC subdivisions and connected regions during conflict remains unclear.
Purpose of the Study:
- To investigate the functional integration and effective connectivity of ACC subdivisions during conflict.
- To examine the role of the anterior rostral cingulate zone (RCZa) in conflict processing.
Main Methods:
- Event-related functional magnetic resonance imaging (fMRI) was used.
- Psychophysiological interaction (PPI) analysis and dynamic causal modeling (DCM) were employed.
Main Results:
- Significant integration of RCZa with caudal cingulate zone (CCZ) and other brain regions (lateral prefrontal, motor areas) was observed.
- Intrinsic connectivity from RCZa to CCZ was modulated by conflict context.
Conclusions:
- Conflict processing involves effective contribution of RCZa to CCZ and other cortical regions.
- RCZa plays a key role in the network dynamics of conflict resolution.
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