Title :
A study of the phase resetting from pre-stimulus to post-stimulus alpha wave
Author :
Ling, Li ; Dezhong, Yao ; Tiejun, Liu ; Lina, Zhao
Author_Institution :
Sch. of Life Sci. & Technology, Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
The alpha wave (8~13 Hz) phase resetting from pre-stimulus to post-stimulus is investigated for eight healthy subjects in a visual and auditory synchronously oddball stimuli experiment. Six parameters are considered: pre-stimulus amplitude and phase angle, post-stimulus amplitude and latency of first positive and negative peak. The results show that the amplitude relationship between pre- and two post-stimulus can be described by a cubic polynomial model; and by using the method of outlying cases test partial phase resetting from pre- to post-stimuli in the band of alpha wave was confirmed in visual and auditory synchronously oddball stimuli experiment
Keywords :
auditory evoked potentials; electroencephalography; polynomials; visual evoked potentials; 8 to 13 Hz; EEG; auditory synchronously oddball stimuli; cubic polynomial model; first negative peak; first positive peak; latency; phase angle; phase resetting; poststimulus alpha wave; poststimulus amplitude; prestimulus alpha wave; prestimulus amplitude; visual synchronously oddball stimuli; Band pass filters; Brain modeling; Delay; Electrodes; Electroencephalography; Electrooculography; Enterprise resource planning; Morphology; Polynomials; Testing; Electroencephalogram; alpha wave; evoked potentials; phase resetting; statistical test;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1617275
