Dynamical change of signal complexity in the brain during inhibitory control processes

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题名:	Dynamical change of signal complexity in the brain during inhibitory control processes
作者:	梁偉光;Huang, Shih-Lin;Tseng, Philip;Liang, Wei-Kuang
贡献者:	生醫理工學院認知神經科學研究所
关键词:	adaptability;Brain;Complexity;Dynamical systems;EEG;Electroencephalography;Entropy;Inhibition;inhibitory control;MSE;multiscale entropy;Signal processing;stop signal;Tasks
日期:	2015-01-01
上传时间:	2026-04-23 14:23:15 (UTC+8)
出版者:	MDPI Multidisciplinary Digital Publishing Institute;Basel: MDPI AG
摘要:	摘要： The ability to inhibit impulses and withdraw certain responses are essential for human’s survival in a fast-changing environment. These processes happen fast, in a complex manner, and require our brain to make a fast adaptation to inhibit the impulsive response. The present study employs multiscale entropy (MSE) to analyzing electroencephalography (EEG) signals acquired alongside a behavioral stop-signal task to theoretically quantify the complexity (indicating adaptability and efficiency) of neural systems to investigate the dynamical change of complexity in the brain during the processes of inhibitory control. We found that the complexity of EEG signals was higher for successful than unsuccessful inhibition in the stage of peri-stimulus, but not in the pre-stimulus time window. In addition, we found that the dynamical change in the brain from pre-stimulus to peri-stimulus stage for inhibitory control is a process of decreasing complexity. We demonstrated both by sensor-level and source-level MSE that the processes of losing complexity is temporally slower and spatially restricted for successful inhibition, and is temporally quicker and spatially extensive for unsuccessful inhibition. 出版者： Basel: MDPI AG 出版日期： 2015-10-01 出處： Entropy (Basel, Switzerland), 2015-10, Vol.17 (10), p.6834-6853 資源來源： Publicly Available Content Database 版權： Copyright MDPI AG 2015 識別號： ISSN: 1099-4300 識別號： EISSN: 1099-4300 識別號： DOI: 10.3390/e17106834
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