Abstract
Functional brain network, one of the main methods for brain functional studies, can provide the connectivity information among brain regions. In this research, EEG-based functional brain network is built and analyzed through a new wavelet limited penetrable visibility graph (WLPVG) approach. This approach first decompose EEG into δ, θ, α, β sub-bands, then extracting nonlinear features from single channel signal, in addition forming a functional brain network for each sub-band. Manual acupuncture (MA) as a stimulation to the human nerve system, may evoke varied modulating effects in brain activities. To investigating whether and how this happens, WLPVG approach is used to analyze the EEGs of 15 healthy subjects with MA at acupoint ST36 on the right leg. It is found that MA can influence the complexity of EEG sub-bands in different ways and lead the functional brain networks to obtain higher efficiency and stronger small-world property compared with pre-acupuncture control state.
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This work is supported by the National Natural Science Foundation of China (Grant Nos. 61172009, 61072012, 61104032 and 61302002) and by Tianjin Municipal Natural Science Foundation (12JCZDJC21100).
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Pei, X., Wang, J., Deng, B. et al. WLPVG approach to the analysis of EEG-based functional brain network under manual acupuncture. Cogn Neurodyn 8, 417–428 (2014). https://doi.org/10.1007/s11571-014-9297-x
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DOI: https://doi.org/10.1007/s11571-014-9297-x