Alpha Power Predicts Persistence of Bistable Perception

Abstract Perception is strongly affected by the intrinsic state of the brain, which controls the propensity to either maintain a particular perceptual interpretation or switch to another. To understand the mechanisms underlying the spontaneous drive of the brain to explore alternative interpretation...

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Autores principales:	Giovanni Piantoni, Nico Romeijn, German Gomez-Herrero, Ysbrand D. Van Der Werf, Eus J. W. Van Someren
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/549106b3d2ff4e8fbfa528b235484160
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spelling	oai:doaj.org-article:549106b3d2ff4e8fbfa528b2354841602021-12-02T16:06:29ZAlpha Power Predicts Persistence of Bistable Perception10.1038/s41598-017-05610-82045-2322https://doaj.org/article/549106b3d2ff4e8fbfa528b2354841602017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05610-8https://doaj.org/toc/2045-2322Abstract Perception is strongly affected by the intrinsic state of the brain, which controls the propensity to either maintain a particular perceptual interpretation or switch to another. To understand the mechanisms underlying the spontaneous drive of the brain to explore alternative interpretations of unchanging stimuli, we repeatedly recorded high-density EEG after normal sleep and after sleep deprivation while participants observed a Necker cube image and reported the durations of the alternating representations of their bistable perception. We found that local alpha power around the parieto-occipital sulcus within the first second after the emergence of a perceptual representation predicted the fate of its duration. An experimentally induced increase in alpha power by means of sleep deprivation increased the average duration of individual representations. Taken together, these findings show that high alpha power promotes the stability of a perceptual representation and suppresses switching to the alternative. The observations support the hypothesis that synchronization of alpha oscillations across a wide neuronal network promotes the maintenance and stabilization of its current perceptual representation. Elevated alpha power could also be key to the poorly understood cognitive deficits, that typically accompany sleep deprivation, such as the loss of mental flexibility and lapses of responsiveness.Giovanni PiantoniNico RomeijnGerman Gomez-HerreroYsbrand D. Van Der WerfEus J. W. Van SomerenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Giovanni Piantoni Nico Romeijn German Gomez-Herrero Ysbrand D. Van Der Werf Eus J. W. Van Someren Alpha Power Predicts Persistence of Bistable Perception
description	Abstract Perception is strongly affected by the intrinsic state of the brain, which controls the propensity to either maintain a particular perceptual interpretation or switch to another. To understand the mechanisms underlying the spontaneous drive of the brain to explore alternative interpretations of unchanging stimuli, we repeatedly recorded high-density EEG after normal sleep and after sleep deprivation while participants observed a Necker cube image and reported the durations of the alternating representations of their bistable perception. We found that local alpha power around the parieto-occipital sulcus within the first second after the emergence of a perceptual representation predicted the fate of its duration. An experimentally induced increase in alpha power by means of sleep deprivation increased the average duration of individual representations. Taken together, these findings show that high alpha power promotes the stability of a perceptual representation and suppresses switching to the alternative. The observations support the hypothesis that synchronization of alpha oscillations across a wide neuronal network promotes the maintenance and stabilization of its current perceptual representation. Elevated alpha power could also be key to the poorly understood cognitive deficits, that typically accompany sleep deprivation, such as the loss of mental flexibility and lapses of responsiveness.
format	article
author	Giovanni Piantoni Nico Romeijn German Gomez-Herrero Ysbrand D. Van Der Werf Eus J. W. Van Someren
author_facet	Giovanni Piantoni Nico Romeijn German Gomez-Herrero Ysbrand D. Van Der Werf Eus J. W. Van Someren
author_sort	Giovanni Piantoni
title	Alpha Power Predicts Persistence of Bistable Perception
title_short	Alpha Power Predicts Persistence of Bistable Perception
title_full	Alpha Power Predicts Persistence of Bistable Perception
title_fullStr	Alpha Power Predicts Persistence of Bistable Perception
title_full_unstemmed	Alpha Power Predicts Persistence of Bistable Perception
title_sort	alpha power predicts persistence of bistable perception
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/549106b3d2ff4e8fbfa528b235484160
work_keys_str_mv	AT giovannipiantoni alphapowerpredictspersistenceofbistableperception AT nicoromeijn alphapowerpredictspersistenceofbistableperception AT germangomezherrero alphapowerpredictspersistenceofbistableperception AT ysbranddvanderwerf alphapowerpredictspersistenceofbistableperception AT eusjwvansomeren alphapowerpredictspersistenceofbistableperception
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Alpha Power Predicts Persistence of Bistable Perception

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