Search Results - "Grummett, Tyler S."

Detecting synchrony in EEG: A comparative study of functional connectivity measures by Bakhshayesh, Hanieh, Fitzgibbon, Sean P., Janani, Azin S., Grummett, Tyler S., Pope, Kenneth J.

“…In neuroscience, there is considerable current interest in investigating the connections between different parts of the brain. EEG is one modality for…”
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Detecting connectivity in EEG: A comparative study of data-driven effective connectivity measures by Bakhshayesh, Hanieh, Fitzgibbon, Sean P., Janani, Azin S., Grummett, Tyler S., Pope, Kenneth J.

“…In this paper, we perform the first comparison of a large variety of effective connectivity measures in detecting causal effects among observed interacting…”
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Managing electromyogram contamination in scalp recordings: An approach identifying reliable beta and gamma EEG features of psychoses or other disorders by Pope, Kenneth J., Lewis, Trent W., Fitzgibbon, Sean P., Janani, Azin S., Grummett, Tyler S., Williams, Patricia A. H., Battersby, Malcolm, Bastiampillai, Tarun, Whitham, Emma M., Willoughby, John O.

“…Objective In publications on the electroencephalographic (EEG) features of psychoses and other disorders, various methods are utilized to diminish…”
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Fast and effective removal of contamination from scalp electrical recordings by Janani, Azin S., Grummett, Tyler S., Bakhshayesh, Hanieh, Lewis, Trent W., DeLosAngeles, Dylan, Whitham, Emma M., Willoughby, John O., Pope, Kenneth J.

“…•We present a new, automated and fast artefact-removal approach.•This approach significantly reduces contamination from scalp electrical recordings.•This…”
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Improved artefact removal from EEG using Canonical Correlation Analysis and spectral slope by Janani, Azin S., Grummett, Tyler S., Lewis, Trent W., Fitzgibbon, Sean P., Whitham, Emma M., DelosAngeles, Dylan, Bakhshayesh, Hanieh, Willoughby, John O., Pope, Kenneth J.

“…•We investigated limitations of traditional Canonical Correlation Analysis (CCA), and considered other artefacts.•We introduced a new automatic muscle-removal…”
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Electroencephalographic correlates of states of concentrative meditation by DeLosAngeles, Dylan, Williams, Graham, Burston, John, Fitzgibbon, Sean P., Lewis, Trent W., Grummett, Tyler S., Clark, C. Richard, Pope, Kenneth J., Willoughby, John O.

“…Meditative techniques aim for and meditators report states of mental alertness and focus, concurrent with physical and emotional calm. We aimed to determine…”
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Resting cranial and upper cervical muscle activity is increased in patients with migraine by Janani, Azin S., Pope, Kenneth J., Fenton, Nicole, Grummett, Tyler S., Bakhshayesh, Hanieh, Lewis, Trent W., Watson, Dean H., Whitham, Emma M., Willoughby, John O.

“…•We applied a new method for quantifying electromyogram in scalp recordings.•We measured scalp muscle activity in headache-free migraine patients and in…”
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Evaluation of a minimum-norm based beamforming technique, sLORETA, for reducing tonic muscle contamination of EEG at sensor level by Janani, Azin S., Grummett, Tyler S., Lewis, Trent W., Fitzgibbon, Sean P., Whitham, Emma M., DelosAngeles, Dylan, Bakhshayesh, Hanieh, Willoughby, John O., Pope, Kenneth J.

“…•We evaluated minimum-norm based beamforming (sLORETA) as a method to reduce muscle contamination at the sensor level.•Sources within the scalp were considered…”
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Constitutive spectral EEG peaks in the gamma range: suppressed by sleep, reduced by mental activity and resistant to sensory stimulation by Grummett, Tyler S, Fitzgibbon, Sean P, Lewis, Trent W, DeLosAngeles, Dylan, Whitham, Emma M, Pope, Kenneth J, Willoughby, John O

“…In a systematic study of gamma activity in neuro-psychiatric disease, we unexpectedly observed distinctive, apparently persistent, electroencephalogram (EEG)…”
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Towards Detecting Connectivity in EEG: A Comparative Study of Parameters of Effective Connectivity Measures on Simulated Data by Bakhshayesh, Hanieh, Grummett, Tyler S., Janani, Azin S., Fitzgibbon, Sean P., Pope, Kenneth J.

“…We compare the performance of many effective connectivity measures in detecting statistically significant causal connections between time series drawn from…”
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Beamforming and Blind Source Separation Have a Complementary Effect in Reducing Tonic Cranial Muscle Contamination of Scalp Measurements by Janani, Azin S., Grummett, Tyler S., Bakhshayesh, Hanieh, Willoughby, John O., Pope, Kenneth J.

“…Scalp electroencephalograms (EEG) are susceptible to cranial and cervical muscle contamination from frequencies as low as 20 hertz, even in relaxed conditions…”
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How Many Channels are Enough? Evaluation of Tonic Cranial Muscle Artefact Reduction Using ICA with Different Numbers of EEG Channels by Janani, Azin S., Grummett, Tyler S., Bakhshayesh, Hanieh, Lewis, Trent W., Willoughby, John O., Pope, Kenneth J.

“…Scalp electrical recordings, or electroencephalograms (EEG), are heavily contaminated by cranial and cervical muscle activity from as low as 20 hertz, even in…”
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