Individual differences in brain structure and resting brain function underlie cognitive styles: evidence from the
Xin Hao1, Kangcheng Wang1, Wenfu Li1
1Key laboratory of cognition and personality (SWU), Ministry of Education, Chongqing, China ; Department of Psychology, Southwest University, Chongqing, China.
Plos One
|December 19, 2013
Summary
Individual differences in cognitive styles, specifically field dependence/independence (FDI), are linked to brain structure and function. Enhanced local processing and cognitive inhibition in the fronto-parietal network support field-independent cognitive styles.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Neuroimaging
Background:
- Cognitive styles represent individual differences in perception, thinking, problem-solving, learning, and social interaction.
- Field dependence/independence (FDI) is a key dimension of cognitive styles, with previous research exploring its functional brain correlates.
- The combined structural and functional neural underpinnings of FDI individual differences have not been extensively studied in large samples.
Purpose of the Study:
- To investigate the neural correlates of individual differences in FDI cognitive styles.
- To analyze the relationship between scores on the Embedded Figures Test (EFT) and both structural and functional neuroimaging data.
Main Methods:
- Utilized voxel-based morphometry (VBM) to assess regional gray matter volume (rGMV) from structural MRI data.
- Measured resting-state brain activity using amplitude of low-frequency fluctuation (ALFF) from functional MRI data.
- Correlated EFT scores with whole-brain rGMV and ALFF to identify structural and functional neural associations.
Main Results:
- Increased rGMV in the left inferior parietal lobule (IPL) positively correlated with EFT scores, suggesting a structural basis for local processing.
- A significant positive correlation between ALFF and EFT scores was observed in the fronto-parietal network, including the left IPL and medial prefrontal cortex (mPFC).
- These findings indicate that enhanced local processing (left IPL) and cognitive inhibition (mPFC) are associated with a field-independent cognitive style.
Conclusions:
- Individual differences in FDI cognitive styles are associated with specific neuroanatomical and functional brain characteristics.
- The left IPL's gray matter volume and resting-state activity, along with mPFC activity, are implicated in supporting field-independent styles.
- Superior local processing ability and cognitive inhibition are crucial components contributing to a field-independent cognitive style.
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