Related Experiment Video
Updated: Feb 28, 2026
06:40
Microstate and Omega Complexity Analyses of the Resting-state Electroencephalography
Published on: June 15, 2018
10.8K
Brain dynamics imbalance in obesity: Evidence from EEG microstate
Yusong Mi1, Jiaqi Guo1, Yong Liu2
1Faculty of Psychology, Southwest University, Chongqing 400715, China.
Physiology & Behavior
|February 25, 2026
Summary
Overweight and obesity alter brain network dynamics. Individuals with excess weight showed changes in electroencephalographic (EEG) microstates, affecting salience, visual, and attention networks.
Area of Science:
- Neuroscience
- Brain Network Dynamics
- Obesity Research
Background:
- Electroencephalographic (EEG) microstates map brain network activity.
- Obesity is linked to functional brain network alterations.
- Direct comparison of EEG microstates in overweight/obese vs. normal-weight individuals is absent.
Purpose of the Study:
- To investigate differences in resting-state EEG microstate profiles between overweight/obese and normal-weight individuals.
- To identify specific microstate alterations associated with overweight and obesity.
Main Methods:
- Analysis of 5-minute resting-state EEG recordings.
- Comparison of microstate parameters (duration, coverage, transition probabilities) between 27 overweight/obese (BMI≧24) and 27 normal-weight (BMI 18.5-23.9) participants.
Main Results:
- Overweight/obese group showed increased mean duration and coverage of microstate C (salience network).
- Decreased coverage of microstates B (visual network) and D (attention network) was observed in the overweight/obese group.
- Reduced transition probabilities between microstates B and D.
Conclusions:
- Overweight and obesity are associated with altered temporal dynamics of functional brain networks.
- Findings suggest an imbalance between salience processing and executive control in overweight/obese individuals.
- EEG microstates offer insights into neural correlates of obesity.
