Individual differences in analogical reasoning revealed by multivariate task-based functional brain imaging

Area of Science:

• Cognitive Neuroscience
• Neuroimaging

Background:

• Analogical reasoning (AR) is crucial for higher-level cognition and intellectual differences.
• Neural mechanisms underlying individual variations in AR are not fully understood.

Purpose of the Study:

• Investigate individual differences in AR using neuroimaging.
• Identify brain regions associated with varying AR capabilities.

Main Methods:

• Multivariate functional magnetic resonance imaging (fMRI) analysis in a large sample (n=229).
• Utilized a multiple kernel learning machine to analyze brain activation patterns.

Main Results:

• AR capability positively correlated with activation in prefrontal executive and visuospatial networks.
• Dorsomedial prefrontal cortex (response selection) and lingual gyrus (visual feature mapping) were key predictors.
• Negative correlation found between AR capability and default mode network activation.

Conclusions:

• Individual AR differences rely on executive and visuospatial brain regions, with contributions varying by cognitive skill.
• Brain regions for individual AR differences partially overlap with those sensitive to task demands (e.g., relational complexity).
• Findings offer insights into brain architecture supporting higher-level cognitive processes like AR.