Intertrial coherence and causal interaction among independent EEG components.


:Over the past few years there has been an increased interest in studying the underlying neural mechanism of attention and cognitive brain activity. This paper aims towards identifying and analyzing distinct responses in an auditory working memory paradigm, as independent components with variable latency, frequency and phase characteristics. The event-related nature of components (either phase or non-phase-locked) over multiple trials is thoroughly examined through intertrial coherence measures. Furthermore, the functional coupling of independent components is investigated through the concept of partial directed coherence depicted as a directed graph. Using these tools, the paper compares issues of activation, connectivity and directionality in the synchronization maps of two populations, of control and Alzheimer's subjects. The results on real data from an oddball experiment verify and further enhance the findings of previous studies and illustrate the potential of the proposed analysis framework.


J Neurosci Methods


Zervakis M,Michalopoulos K,Iordanidou V,Sakkalis V




Has Abstract


2011-04-30 00:00:00














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    journal_title:Journal of neuroscience methods

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    authors: Zhang T,Zhou J,Carney PR,Jiang H

    更新日期:2015-01-30 00:00:00

  • Automated detection and analysis of foraging behavior in Caenorhabditis elegans.

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    journal_title:Journal of neuroscience methods

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    authors: Huang KM,Cosman P,Schafer WR

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  • Neuromuscular electrical stimulation of the hindlimb muscles for movement therapy in a rodent model.

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    journal_title:Journal of neuroscience methods

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    authors: Ichihara K,Venkatasubramanian G,Abbas JJ,Jung R

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  • A method of dark-field and simultaneous light--dark-field illumination for photomacrography of autoradiographic preparations.

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    journal_title:Journal of neuroscience methods

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    authors: Updyke BV

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    journal_title:Journal of neuroscience methods

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    pub_type: 杂志文章


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