Effect of signal length on the performance of independent component analysis when extracting the lambda wave.


:The aim of the study was to investigate the effect of signal length on the performance of a signal source separation method, independent component analysis (ICA), when extracting the visual evoked potential (EP) lambda wave from saccade-related electro-encephalogram (EEG) waveforms. A method was devised that enabled the effective length of the recorded EEG traces to be increased prior to processing by ICA. This involved abutting EEG traces from an appropriate number of successive trials (a trial was a set of waveforms recorded from 64 electrode locations in a study investigating saccade performance). ICA was applied to the saccade-related EEG and electro-oculogram (EOG) waveforms recorded from the electrode locations. One spatial and five temporal features of the lambda wave were monitored to assess the performance of ICA applied to both abutted and non-abutted waveforms. ICA applied to abutted trials managed to extract all six features across all seven subjects included in the study. This was not the case when ICA was applied to the non-abutted trials. It was quantitatively demonstrated that the process of abutting EEG waveforms was useful for ICA preprocessing when extracting lambda waves.


Med Biol Eng Comput


Vigon L,Saatchi R,Mayhew JE,Taroyan NA,Frisby JP





Has Abstract


2002-03-01 00:00:00












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    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章


    authors: El-Segaier M,Pesonen E,Lukkarinen S,Peters K,Ingemansson J,Sörnmo L,Sepponen R

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    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章


    authors: Esslinger D,Rapp P,Knödler L,Preibsch H,Tarín C,Sawodny O,Brucker SY,Hahn M

    更新日期:2019-07-01 00:00:00

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    authors: Mi Y,Rui S,Li C,Yao C,Xu J,Bian C,Tang X

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    authors: Potse M,Dubé B,Vinet A

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    abstract::It is clinically well-established that minimally invasive subcutaneous continuous glucose monitoring (CGM) sensors can significantly improve diabetes treatment. However, CGM readings are still not as reliable as those provided by standard fingerprick blood glucose (BG) meters. In addition to unavoidable random measure...

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    journal_title:Medical & biological engineering & computing

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    authors: Holdsworth DW,Rickey DW,Drangova M,Miller DJ,Fenster A

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    authors: Gao JB

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    journal_title:Medical & biological engineering & computing

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    authors: Irnich W

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    journal_title:Medical & biological engineering & computing

    pub_type: 杂志文章


    authors: Segadal L

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