Conference proceeding
Cortical networks of hemianopia stroke patients: A graph theoretical analysis of EEG signals at resting state
2012 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), v 2012
01 Jan 2012
PMID: 23365829
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Visual cortical stroke patients may have hemianopia symptom, which affects a number of visual functions. Most studies on hemianopia stroke have mainly focused on cortical activation during visual stimulation, leaving the pattern of functional connectivity between different brain regions uncovered yet. In the present study, we investigate the resting neural networks of hemianopia stroke patients by graph theoretical analysis of functional brain networks constructed with phase synchronization indexes of multichannel electroencephalography (EEG) signals. Our results showed that although the global network topological metrics, i.e., weighted clustering coefficient and characteristic path length of patients and healthy controls are comparable, the left primary visual cortex of patients tend to be less active than that of age-matched healthy subjects. However, hemianopia patients showed greater activation in the ipsilesional (left) temporopolar and orbit frontal areas and the contralesional (right) associative visual cortex. These results may offer new insight into neural substrates of the hemianopia stroke, and the further study of neural plasticity and brain reorganization after hemianopia.
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Details
- Title
- Cortical networks of hemianopia stroke patients: A graph theoretical analysis of EEG signals at resting state
- Creators
- Lei Wang - Shanghai Jiao Tong UniversityXiaoli Guo - Shanghai Jiao Tong UniversityJunfeng Sun - Shanghai Jiao Tong UniversityZheng Jin - Fifth Hospital In WuhanShanbao Tong - Shanghai Jiao Tong University
- Publication Details
- 2012 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), v 2012
- Conference
- 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society (San Diego, California, United States, 28 Aug 2012–01 Sep 2012)
- Series
- IEEE Engineering in Medicine and Biology Society Conference Proceedings
- Publisher
- IEEE
- Number of pages
- 4
- Grant note
- SJTU SMC- Morning Star for Young Investigator 2011CB013304 / National Basic Research Program of China (973 Program); National Basic Research Program of China 2011DFA10950 / International Science and Technology Cooperation Program of China 61001015 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Information Science
- Web of Science ID
- WOS:000313296500013
- Scopus ID
- 2-s2.0-84881064154
- Other Identifier
- 9781457717871; 1457717875; 991020876813304721
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- Web of Science research areas
- Engineering, Biomedical
- Engineering, Electrical & Electronic