NDLI: Small-world network organization of functional connectivity of EEG gamma oscillation during emotion-related processing

Content Provider	IEEE Xplore Digital Library
Author	Manfang Ma Yingjie Li Zhenzhu Xu Yingying Tang Jijun Wang
Copyright Year	2012
Description	Author affiliation: Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai, China (Manfang Ma; Yingjie Li; Zhenzhu Xu) \|\| Shanghai Mental Health Center, Shanghai Jiao Tong Univ., Shanghai, China (Yingying Tang; Jijun Wang)
Abstract	In this study we investigated whether functional brain networks are variously organized during different emotional processing. Electroencephalography (EEG) activities were recorded in 27 healthy subjects when they performed a spatial search task for facial expressions. Correlations between all possible pairs of electrodes placed over the scalp were determined by coherence and the coherence matrices were calculated within gamma frequency bands, i.e. low gamma for 30-50Hz and high gamma for 50-80Hz, respectively. Graph theoretical analysis was applied to these matrices using two measures: the clustering coefficient and the characteristic path length. We found the network organization of the EEG gamma oscillation during emotion processing showed characteristic of small-world networks; this type of organization is slightly but significantly more evident during negative emotional processing. We concluded that negative emotion processing showed more effective and optimal network organization for information processing than positive.
Starting Page	597
Ending Page	600
File Size	1096854
Page Count	4
File Format	PDF
ISBN	9781467311830
e-ISBN	9781467311847
DOI	10.1109/BMEI.2012.6513195
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	EEG emotional processing graph theoretical analysis
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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