The generation and propagation of the human alpha rhythm

Halgren, Mila; Ulbert, István; Bastuji, Hélène; Fabó, Dániel; Erőss, Lóránd; Rey, Marc; Devinsky, Orrin; Doyle, Werner; Mak-McCully, Rachel A.; Halgren, Eric; Wittner, Lúcia; Chauvel, Patrick; Heit, Gary; Eskandar, Emad N.; Mandell, Arnold J.; Cash, Sydney S.

doi:10.1073/pnas.1913092116

articleProceedings of the National Academy of SciencesNov 4, 2019BRONZE OA

The generation and propagation of the human alpha rhythm

MHMila Halgren IUIstván Ulbert HBHélène Bastuji DFDániel Fabó LELóránd Erőss

Harvard University · Massachusetts General Hospital · +16 more institutions

PubMed

Indexed incrossrefpubmed

Abstract

The alpha rhythm is the longest-studied brain oscillation and has been theorized to play a key role in cognition. Still, its physiology is poorly understood. In this study, we used microelectrodes and macroelectrodes in surgical epilepsy patients to measure the intracortical and thalamic generators of the alpha rhythm during quiet wakefulness. We first found that alpha in both visual and somatosensory cortex propagates from higher-order to lower-order areas. In posterior cortex, alpha propagates from higher-order anterosuperior areas toward the occipital pole, whereas alpha in somatosensory cortex propagates from associative regions toward primary cortex. Several analyses suggest that this cortical alpha leads…

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448

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FWCI: 21.43
Percentile: 100%
References: 87

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16

Topics & keywords

Topics

Keywords

Somatosensory system
Neuroscience
Alpha rhythm
Thalamus
Cortex (anatomy)
Wakefulness
Alpha (finance)
Rhythm

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