Detecting gamma frequency neural activity using simultaneous multiband EEG-fMRI

Makoto Uji; Ross Wilson; Susan Francis; Karen Mullinger; Stephen Mayhew

Detecting gamma frequency neural activity using simultaneous multiband EEG-fMRI

Makoto Uji, Ross Wilson, Susan Francis, Karen Mullinger, Stephen Mayhew

School of Psychology and Neuroscience

Research output: Contribution to conference › Poster › peer-review

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Abstract

Synchronization of gamma frequency (>35Hz) EEG activity is linked to cognitive and sensory behaviour as well as being widely cited as the closest neuronal correlate of the BOLD fMRI signal[1]. However, the majority of gamma-BOLD studies were conducted in the visual[2,3] or auditory[4,5] modalities, therefore a deeper understanding necessitates extension to the motor domain. Simultaneous EEG-fMRI is an ideal method to investigate gamma-BOLD correlates non-invasively in humans, however, residual gradient artefacts typically obscure gamma frequency EEG activity when acquired with fMRI. Accelerated fMRI methods such as multiband (MB)[6,7] allow whole-brain coverage in a sparse fMRI scheme which incorporates MR gradient “quiet periods” thus potentially useful to overcome EEG gradient artefacts during fMRI acquisition

Original language	English
Publication status	Published - 26 Jun 2017
Event	Organization for Human Brain Mapping - Vancouver Convention Centre, Vancouver, Canada Duration: 25 Jun 2017 → 29 Jun 2017 https://www.humanbrainmapping.org/i4a/pages/index.cfm?pageID=3734

Conference

Conference	Organization for Human Brain Mapping
Abbreviated title	OHBM
Country/Territory	Canada
City	Vancouver
Period	25/06/17 → 29/06/17
Internet address	https://www.humanbrainmapping.org/i4a/pages/index.cfm?pageID=3734

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https://ww5.aievolution.com/hbm1701/index.cfm?do=abs.viewAbs&abs=2230

Cite this

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title = "Detecting gamma frequency neural activity using simultaneous multiband EEG-fMRI",

abstract = "Synchronization of gamma frequency (>35Hz) EEG activity is linked to cognitive and sensory behaviour as well as being widely cited as the closest neuronal correlate of the BOLD fMRI signal[1]. However, the majority of gamma-BOLD studies were conducted in the visual[2,3] or auditory[4,5] modalities, therefore a deeper understanding necessitates extension to the motor domain. Simultaneous EEG-fMRI is an ideal method to investigate gamma-BOLD correlates non-invasively in humans, however, residual gradient artefacts typically obscure gamma frequency EEG activity when acquired with fMRI. Accelerated fMRI methods such as multiband (MB)[6,7] allow whole-brain coverage in a sparse fMRI scheme which incorporates MR gradient “quiet periods” thus potentially useful to overcome EEG gradient artefacts during fMRI acquisition",

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T1 - Detecting gamma frequency neural activity using simultaneous multiband EEG-fMRI

AU - Uji, Makoto

AU - Wilson, Ross

AU - Francis, Susan

AU - Mullinger, Karen

AU - Mayhew, Stephen

PY - 2017/6/26

Y1 - 2017/6/26

N2 - Synchronization of gamma frequency (>35Hz) EEG activity is linked to cognitive and sensory behaviour as well as being widely cited as the closest neuronal correlate of the BOLD fMRI signal[1]. However, the majority of gamma-BOLD studies were conducted in the visual[2,3] or auditory[4,5] modalities, therefore a deeper understanding necessitates extension to the motor domain. Simultaneous EEG-fMRI is an ideal method to investigate gamma-BOLD correlates non-invasively in humans, however, residual gradient artefacts typically obscure gamma frequency EEG activity when acquired with fMRI. Accelerated fMRI methods such as multiband (MB)[6,7] allow whole-brain coverage in a sparse fMRI scheme which incorporates MR gradient “quiet periods” thus potentially useful to overcome EEG gradient artefacts during fMRI acquisition

AB - Synchronization of gamma frequency (>35Hz) EEG activity is linked to cognitive and sensory behaviour as well as being widely cited as the closest neuronal correlate of the BOLD fMRI signal[1]. However, the majority of gamma-BOLD studies were conducted in the visual[2,3] or auditory[4,5] modalities, therefore a deeper understanding necessitates extension to the motor domain. Simultaneous EEG-fMRI is an ideal method to investigate gamma-BOLD correlates non-invasively in humans, however, residual gradient artefacts typically obscure gamma frequency EEG activity when acquired with fMRI. Accelerated fMRI methods such as multiband (MB)[6,7] allow whole-brain coverage in a sparse fMRI scheme which incorporates MR gradient “quiet periods” thus potentially useful to overcome EEG gradient artefacts during fMRI acquisition

M3 - Poster

T2 - Organization for Human Brain Mapping

Y2 - 25 June 2017 through 29 June 2017

ER -

Detecting gamma frequency neural activity using simultaneous multiband EEG-fMRI

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Conference

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