Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Dylan DeLosAngeles"'
Autor:
Trent W. Lewis, Dylan DeLosAngeles, John O. Willoughby, Hanieh Bakhshayesh, Tyler S. Grummett, Sean P. Fitzgibbon, Kenneth J. Pope, Emma M. Whitham, Azin S. Janani
Publikováno v:
Journal of Neuroscience Methods. 298:1-15
Background Contamination of scalp measurement by tonic muscle artefacts, even in resting positions, is an unavoidable issue in EEG recording. These artefacts add significant energy to the recorded signals, particularly at high frequencies. To enable
Autor:
Tyler S. Grummett, John O. Willoughby, Dylan DeLosAngeles, Azin S. Janani, Trent W. Lewis, Emma M. Whitham, Kenneth J. Pope, Hanieh Bakhshayesh
Publikováno v:
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology. 131(1)
Objective To present a new, automated and fast artefact-removal approach which significantly reduces the effect of contamination in scalp electrical recordings. Method We used spectral and temporal characteristics of different sources recorded during
Autor:
Dylan DeLosAngeles, Sean P. Fitzgibbon, David M. W. Powers, John O. Willoughby, Kenneth J. Pope, Emma M. Whitham, Trent W. Lewis
Publikováno v:
International Journal of Psychophysiology. 97:277-284
The serious impact of electromyogram (EMG) contamination of electroencephalogram (EEG) is well recognised. The objective of this research is to demonstrate that combining independent component analysis with the surface Laplacian can eliminate EMG con
Autor:
Dylan DeLosAngeles, Dhani Dharmaprani, Trent W. Lewis, Hoang K. Nguyen, Kenneth J. Pope, John O. Willoughby
Publikováno v:
EMBC
Independent Component Analysis (ICA) is a powerful statistical tool capable of separating multivariate scalp electrical signals into their additive independent or source components, specifically EEG or electroencephalogram and artifacts. Although ICA
Autor:
Kenneth J. Pope, John Burston, Graham Williams, Sean P. Fitzgibbon, John O. Willoughby, Tyler S. Grummett, C. Richard Clark, Trent W. Lewis, Dylan DeLosAngeles
Publikováno v:
International journal of psychophysiology : official journal of the International Organization of Psychophysiology. 110
Meditative techniques aim for and meditators report states of mental alertness and focus, concurrent with physical and emotional calm. We aimed to determine the electroencephalographic (EEG) correlates of five states of Buddhist concentrative meditat
Autor:
Trent W. Lewis, Carmen A. Carabali, Tyler S. Grummett, Sean P. Fitzgibbon, Kenneth J. Pope, Dylan DeLosAngeles, John O. Willoughby
Publikováno v:
11th International Symposium on Medical Information Processing and Analysis.
One of the limitations of Encephalography (EEG) data is its quality, as it is usually contaminated with electric signal from muscle. This research intends to study results of two EEG source analysis methods applied to scalp recordings taken in paraly
Autor:
Alyson Pulbrook, Andrew Hardy, Sean P. Fitzgibbon, Stephen Loveless, Emma M. Whitham, Trent W. Lewis, John O. Willoughby, Peter Lillie, C. Richard Clark, Angus Wallace, Dylan DeLosAngeles, R. R. L. Fronsko, Marita Broberg, Kenneth J. Pope
Publikováno v:
Clinical Neurophysiology. 118:1877-1888
Objective To identify the possible contribution of electromyogram (EMG) to scalp electroencephalogram (EEG) rhythms at rest and induced or evoked by cognitive tasks. Methods Scalp EEG recordings were made on two subjects in presence and absence of co
Autor:
Trent W. Lewis, Richard Leibbrandt, Dylan DeLosAngeles, Tyler S. Grummett, David M. W. Powers, John O. Willoughby, Kenneth J. Pope, Sean P. Fitzgibbon
Publikováno v:
Physiological measurement. 36(7)
Electroencephalography (EEG) is challenged by high cost, immobility of equipment and the use of inconvenient conductive gels. We compared EEG recordings obtained from three systems that are inexpensive, wireless, and/or dry (no gel), against recordin
Autor:
Emma M. Whitham, Tyler S. Grummett, Lawrence M. Ward, Kenneth J. Pope, Sean P. Fitzgibbon, Trent W. Lewis, John O. Willoughby, David M. W. Powers, Dylan DeLosAngeles
Publikováno v:
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology. 127(3)
Objective Validate independent component analysis (ICA) for removal of EMG contamination from EEG, and demonstrate a heuristic, based on the gradient of EEG spectra (slope of graph of log EEG power vs log frequency, 7–70Hz) from paralysed awake hum
Autor:
Trent W. Lewis, Stephen Loveless, Marita Broberg, Emma M. Whitham, Angus Wallace, Kenneth J. Pope, Sean P. Fitzgibbon, John O. Willoughby, C. Richard Clark, Dylan DeLosAngeles
Publikováno v:
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology. 119(5)
Objective Fast electrical rhythms in the gamma range (30–100 Hz) in scalp (but not intracranial) recordings are predominantly due to electromyographic (EMG) activity. We hypothesized that increased EMG activity would be augmented by mental tasks in