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Brain Imaging

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).

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Published on: November 27, 2019

Job Satisfaction, Self-Rated Work Performance, and Precuneus Gray Matter Volume: An Exploratory Neuroimaging Study.

Keisuke Kokubun¹, Kiyotaka Nemoto², Yoshinori Yamakawa^1,3,4,5,6

¹Graduate School of Management, Kyoto University, Kyoto, Japan.

Brain and Behavior

|July 14, 2026

Summary

Brain gray matter volume, particularly in the precuneus, is linked to job satisfaction and performance. This finding offers insights into the neural basis of employee effectiveness and job fulfillment.

Keywords:

gray matter volume job satisfaction precuneus work performance

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Area of Science:

Neuroscience
Organizational Psychology
Cognitive Science

Background:

Employee job performance is crucial in global competition.
The link between brain structure and job performance remains largely unexplored.

Purpose of the Study:

To investigate if gray matter volume in the precuneus mediates the relationship between job satisfaction and job performance.
To explore other brain regions potentially associated with job satisfaction and performance.

Main Methods:

Mediation analysis was employed to test the hypothesis.
Gray matter volume in specific brain regions was analyzed in relation to job satisfaction and performance.

Main Results:

Gray matter volume in the precuneus significantly mediates the association between job satisfaction and job performance.
Exploratory analysis identified other brain areas potentially linked to job performance (superior parietal lobule, midcingulate cortex) and job satisfaction (superior temporal sulcus, rectus, medial orbitofrontal cortex, amygdala, pallidum).

Conclusions:

This study provides the first evidence that brain gray matter volume, specifically in the precuneus, is associated with both job satisfaction and work performance.
Findings align with self-regulated learning strategy theory, highlighting the role of metacognitive brain regions in employee effectiveness.