Neural Correlates of Extraversion and Trait Creativity: A Graph Theory-Based Whole-Brain Functional Network...

Area of Science:

• Neuroscience
• Cognitive Psychology
• Network Science

Background:

• Trait creativity is associated with brain functional connectivity.
• Previous research has overlooked whole-brain architecture, focusing on isolated networks.
• The neural mechanisms linking extraversion and creativity are not well understood.

Purpose of the Study:

• To investigate if whole-brain functional network modularity mediates the relationship between extraversion and trait creativity.
• To explore the neural underpinnings of the connection between a personality trait and creative ability.

Main Methods:

• Resting-state fMRI was used in 43 university students.
• Whole-brain functional networks were constructed using the AAL atlas.
• Modularity (Q) was calculated, and mediation analysis was performed.

Main Results:

• Extraversion positively correlated with creativity (r = 0.38) and modularity (r = 0.37).
• Modularity positively correlated with creativity (r = 0.41).
• Mediation analysis showed a significant indirect effect of extraversion on creativity via modularity (ab = 0.113).

Conclusions:

• Whole-brain network modularity statistically mediates the link between extraversion and creativity.
• Increased extraversion is associated with greater modularity, which is linked to higher creativity.
• Findings suggest a brain network basis for personality traits influencing creativity, requiring further validation.