Task-related gamma-band dynamics from an intracerebral perspective: Review and implications for surface EEG and MEG
Author
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Jerbi, Karim
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Ossandón, Tomás
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Hamamé, Carlos M.
Author
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Senova, S.
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Dalal, Sarang S.
Author
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Jung, Julien
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Minotti, Lorella
Author
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Bertrand, Olivier
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Berthoz, Alain
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Kahane, Philippe
Author
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Lachaux, Jean Philippe
Admission date
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2019-03-11T12:57:33Z
Available date
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2019-03-11T12:57:33Z
Publication date
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2009
Cita de ítem
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Human Brain Mapping, Volumen 30, Issue 6, 2018, Pages 1758-1771
Identifier
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10659471
Identifier
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10.1002/hbm.20750
Identifier
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https://repositorio.uchile.cl/handle/2250/164762
Abstract
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Although non-invasive techniques provide functional activation maps at ever-growing spatiotemporal precision, invasive recordings offer a unique opportunity for direct investigations of the fine-scale properties of neural mechanisms in focal neuronal populations. In this review we provide an overview of the field of intracranial Electroencephalography (iEEG) and discuss its strengths and limitations and its relationship to non-invasive brain mapping techniques. We discuss the characteristics of invasive data acquired from implanted epilepsy patients using stereotactic-electroencephalography (SEEG) and electrocorticography (ECoG) and the use of spectral analysis to reveal task-related modulations in multiple frequency components. Increasing evidence suggests that gamma-band activity (>40 Hz) might be a particularly efficient index for functional mapping. Moreover, the detection of high gamma activity may play a crucial role in bridging the gap between electrophysiology and functional im