Functional brain networks related to working memory using phase synchrony analysis
- Resource Type
- Conference
- Authors
- Shahabi, Hossein; Nemati, Samane; Moghimi, Sahar
- Source
- 2014 7th International Conference on Biomedical Engineering and Informatics Biomedical Engineering and Informatics (BMEI), 2014 7th International Conference on. :313-317 Oct, 2014
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Electroencephalography
Synchronization
Maintenance engineering
Brain
Oscillators
Neuroscience
Indexes
Working memory
brain networks
phase synchrony
- Language
- ISSN
- 1948-2914
1948-2922
Phase synchrony among cortical brain regions is a key aspect of the working memory process. In this study we utilized phase synchrony analysis of EEG signals to construct brain networks and investigate the rest and working memory states of the brain. The maintenance period of working memory demonstrated higher global and local phase synchronization compared to the rest condition in the theta, alpha and beta bands. In contrast, during the manipulation period, we observed high synchrony between brain areas in the theta band and low phase synchrony in the alpha and beta bands. These alterations between different phases of working memory illustrated the critical behavior of brain networks and their highly dynamic characteristic.