A Multitaper Model for Quiet Voltage in Relative Ionospheric Opacity Meters

Marshall, Francois A.; Thomson, David J.; Takahara, Glen; Fiori, R. A. D.

doi:10.1109/globalsip45357.2019.8969128

Cited by 1 publication

(1 citation statement)

References 28 publications

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“…7 Justification for the choice of p is provided in [15]. 8 The reconstructions have been obtained using a modified version of the 50% section-overlap method of [19] (in particular, the same choice of multitaper time-bandwidth and zero-padding parameters). The modifications regard: the estimation of mode frequencies; and linear extrapolation of this nominal reconstruction at the record ends.…”

Section: A the Time-evolutionary Periodicity Of Microelectrode Voltagementioning

confidence: 99%

Temporal-lobe Epilepsy: Harmonic and Anharmonic Periodicity in Microeletrode Voltage

Marshall¹

2023

Preprint

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Temporal-lobe epilepsy in humans is often associated with widespread, synchronized neuron firing that co-occurs with traveling waves in local field potential. These traveling waves generate stochastic oscillations in a time series of microelectrode voltage, and previous work has deemed it informative for traveling-wave analysis to study the mean periodicity. This manuscript reveals that: a) mean voltage (i.e., traveling-wave periodicity) adequately explains the observed voltage periodicity only for a select few time intervals during seizure; and b) mean voltage has a 7 Hz cosine-series representation indicative of a nonlinear system response given alpha-rhythm input. The a) result implies that residual noise should be modelled explicitly, while b) motivates a departure from the conventional planewave modeling regime in source-localization efforts. The 7 Hz fundamental frequency is unsurprising given the relative transparency of the brain to 14 Hz alpha rhythms in neurophysiological diseases (14 Hz being a subharmonic frequency of the 7 Hz signal).

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Section: A the Time-evolutionary Periodicity Of Microelectrode Voltagementioning

confidence: 99%

Temporal-lobe Epilepsy: Harmonic and Anharmonic Periodicity in Microeletrode Voltage

Marshall¹

2023

Preprint

View full text Add to dashboard Cite

show abstract

A Multitaper Model for Quiet Voltage in Relative Ionospheric Opacity Meters

Cited by 1 publication

References 28 publications

Temporal-lobe Epilepsy: Harmonic and Anharmonic Periodicity in Microeletrode Voltage

Temporal-lobe Epilepsy: Harmonic and Anharmonic Periodicity in Microeletrode Voltage

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