Empirical mode decomposition-based approach for intertrial analysis of olfactory event-related potential features

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Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/107162

Title:	Empirical mode decomposition-based approach for intertrial analysis of olfactory event-related potential features
Authors:	李柏磊;Wu, Chi-Hsun;Lee, Po-Lei;Shu, Chih-Hung;Yang, Chia-Yen;Lo, Men-Tzung;Chang, Chun-Yen;Hsieh, Jen-Chuen
Contributors:	資訊電機學院電機工程學系
Keywords:	air;analytical specificity;Chemistry;Chemistry and Materials Science;Chemoreception;Chemosensory perception;Clinical Nutrition;Decomposition;EEG;Electroencephalography;Ethanol;Event-related potentials;Food Science;Frequency dependence;Humidity;Neurobiology;Neurosciences;Olfaction;Olfactometers;olfactory disorders;Olfactory evoked potentials;Perception;phenylethyl alcohol;sensory evaluation;Smell;spatial discrimination;Standard deviation
Date:	2012-12-01
Issue Date:	2026-04-23 13:58:22 (UTC+8)
Publisher:	New York: Springer-Verlag
Abstract:	摘要： This study presents an empirical mode decomposition (EMD)-based method to study the intertrial variability of olfactory event-related potential (OERP) features. The olfactory stimulus in this study was a mixture of 60 % humidity air and 40 % phenyl ethanol alcohol generated by a computer-controlled olfactometer with a constant flow rate of 8 L/min. A 32-channel whole-head EEG system was utilized to investigate the olfactory responses in 12 healthy subjects. Each EEG epoch was segmented based on the olfactory stimulus onset and subsequently decomposed into a set of intrinsic mode functions (IMFs) by using EMD. Only IMFs that met both frequency and spatial dual criteria were chosen as OERP-related IMFs for reconstructing the noise-suppressed single-trial activity, and those significant trials with N1/P2 amplitudes lower/greater than the mean minus/plus two times the standard deviations of baseline amplitudes were denoted as single-trial OERP for intertrial variability analysis. The present approach enables the capability to study intertrial OERP features, such as the latencies and amplitudes of N1 and P2 peaks, on trial-by-trial basis, which may be helpful to shed light on future olfactory dysfunction studies. 其他題名： Chem. Percept 出版者： New York: Springer-Verlag 出版日期： 2012-12 出處： Chemosensory perception, 2012-12, Vol.5 (3-4), p.280-291 版權： Springer Science + Business Media, LLC 2012 版權： Springer Science+Business Media New York 2012 識別號： ISSN: 1936-5802 識別號： EISSN: 1936-5810 識別號： DOI: 10.1007/s12078-012-9134-8
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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