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Role of prefrontal cortex during Sudoku task: fNIRS study.
Patil Ashlesh1, Kishore K Deepak2, Kochhar Kanwal Preet2
1Department of Physiology, All India Institute of Medical Sciences, Nagpur, India.
Playing Sudoku activates the brain, particularly the prefrontal cortex (PFC). Medial PFC regions show distinct roles in rule selection, suggesting Sudoku
Area of Science:
- Neuroscience
- Cognitive Science
- Neuroimaging
Background:
- Sudoku is a popular cognitive game.
- Investigating the neural basis of Sudoku has been difficult.
Purpose of the Study:
- To explore the prefrontal cortex's (PFC) function during Sudoku.
- To differentiate the roles of medial and lateral PFC regions.
Main Methods:
- Used functional near-infrared spectroscopy (fNIRS) to monitor PFC activity.
- Analyzed data from 28 participants using ANOVA and general linear models.
- Divided the Sudoku task into two steps to assess rule application.
Main Results:
- Increased oxygenated hemoglobin and decreased deoxygenated hemoglobin observed across all PFC regions.
- Medial PFC regions showed preferential activation during complex task steps.
- Significant activation (p < 0.0001) occurred during both Sudoku task phases.
Conclusions:
- Both medial and lateral PFC are engaged during Sudoku.
- Medial PFC plays a specific role in heuristic rule searching and selection.
- Sudoku may be beneficial for cognitive rehabilitation in PFC-related disorders.
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