Abstract
Evoked potential (EP) is non-stationary during the recording of electroencephalograph (EEG). This paper promotes a method to track the variation of EP’s amplitude by the application of independent component analysis (ICA) and wavelet transform (WT). The utilization of the spatial information and multi-trial recording improves the signal-to-noise ratio (SNR) greatly. The variation trend of EP’s amplitude across trials can be evaluated quantitatively. Our result on real auditory evoked potential shows a drop of about 40% on the amplitude of EP during 10 minutes recording. The present work is helpful to study the uncertainty and singularity of EP. Furthermore, it will put forward the reasonable experiment design of EP extraction.
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© 2004 Springer-Verlag Berlin Heidelberg
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Ding, H., Ye, D. (2004). Tracking the Amplitude Variation of Evoked Potential by ICA and WT. In: Yin, FL., Wang, J., Guo, C. (eds) Advances in Neural Networks - ISNN 2004. ISNN 2004. Lecture Notes in Computer Science, vol 3174. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-28648-6_73
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DOI: https://doi.org/10.1007/978-3-540-28648-6_73
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-22843-1
Online ISBN: 978-3-540-28648-6
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