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Detecting gamma frequency neural activity using simultaneous multiband EEG-fMRI

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MU_Multibandposter_HBM.pdf (1.081Mb)
Date
26/06/2017
Author
Uji, Makoto
Wilson, Ross
Francis, Susan
Mullinger, Karen
Mayhew, Stephen
Keywords
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
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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
Citation
Uji , M , Wilson , R , Francis , S , Mullinger , K & Mayhew , S 2017 , ' Detecting gamma frequency neural activity using simultaneous multiband EEG-fMRI ' , Organization for Human Brain Mapping , Vancouver , Canada , 25/06/17 - 29/06/17 . < https://ww5.aievolution.com/hbm1701/index.cfm?do=abs.viewAbs&abs=2230 >
 
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Status
Peer reviewed
Type
Conference poster
Rights
© 2017 Publisher / the Authors. This work has been made available online with permission from the authors.
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  • University of St Andrews Research
URL
https://ww5.aievolution.com/hbm1701/index.cfm?do=abs.viewAbs&abs=2230
URI
http://hdl.handle.net/10023/13020

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