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Updated: Dec 24, 2025
10:33
Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis
Published on: June 20, 2012
13.2K
Cognitive Effort Modulates Connectivity between Dorsal Anterior Cingulate Cortex and Task-Relevant Cortical Areas
Bart Aben1,2, Cristian Buc Calderon2, Eva Van den Bussche3
1Faculty of Psychology and Educational Sciences, Brain and Cognition, KU Leuven, 3000 Leuven, Belgium bart.aben@kuleuven.be.
Summary
The brain
Area of Science:
- Neuroscience
- Cognitive Psychology
- Neuroimaging
Background:
- Cognitive effort is essential for daily tasks and is a key focus in neurocognitive research.
- The dorsal anterior cingulate cortex (dACC) is hypothesized to play a central role in effort investment, coordinating task-specific brain regions.
Purpose of the Study:
- To investigate if the dACC is generally activated by high cognitive effort demands across different tasks.
- To determine if functional connectivity between the dACC and task-specific areas increases with task demands and effort levels.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was employed in human participants.
- A perceptual detection task involved identifying faces or houses in noisy images.
- Effort demand was manipulated by varying the level of noise in the images (low vs. high effort).
Main Results:
- A network including the dACC, anterior insula (AI), and intraparietal sulcus (IPS) showed increased activity under high effort, irrespective of the task (face or house detection).
- Functional connectivity between the dACC and task-specific perceptual areas was modulated by effort demand, aligning with specific task requirements.
Conclusions:
- The dACC, AI, and IPS form a general network responsive to cognitive effort.
- Neural implementation of cognitive effort involves the dACC potentially sensitizing task-relevant brain areas.
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