Small-world properties of brain Functional Connectivity Networks are affected by emotional stimuli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

View graph of relations Save citation

Authors

Research units

Abstract

The aim of this study was to examine whether Functional Connectivity Networks (FCN) obtained during exposing the humans to emotional stimuli, vary according to the characteristics of the stimuli. Twenty-eight participants passively viewed emotional pictures from International Affective Picture System (IAPS) ranging across both arousal and pleasure dimensions. Electroencephalographic (EEG) signals were simultaneously recorded from 19 scalp sites. Relative Wavelet Entropy (RWE) was estimated for all EEG electrode pairs. Different RWE thresholds were set in order to form the corresponding FCNs. Graph theory metrics, such as Density, Cluster Coefficient and Global Efficiency were calculated for all FCNs. It was found that arousal significantly affected small-world properties of FCNs formed from 42 to 170 msec; low arousing pictures elicited FCN with higher Density, higher Cluster Coefficient and higher Global Efficiency as compared to high arousing ones.

Request a copy

Request a copy

Details

Publication dateNov 2010
Publication title2010 10th IEEE International Conference on Information Technology and Applications in Biomedicine (ITAB)
PublisherIEEE
Number of pages4
Original languageEnglish
Event2010 10th IEEE International Conference on Information Technology and Applications in Biomedicine (ITAB) - Corfu, Greece
Duration: 3 Nov 20105 Nov 2010

Conference

Conference2010 10th IEEE International Conference on Information Technology and Applications in Biomedicine (ITAB)
CountryGreece
CityCorfu
Period3/11/105/11/10

Employable Graduates; Exploitable Research

Copy the text from this field...