TY - JOUR
T1 - TMS-induced cortical potentiation during wakefulness locally increases slow wave activity during sleep
AU - Huber, Reto
AU - Esser, Steve K.
AU - Ferrarelli, Fabio
AU - Massimini, Marcello
AU - Peterson, Michael J.
AU - Tononi, Giulio
PY - 2007/3/7
Y1 - 2007/3/7
N2 - Background. Sleep slow wave activity (SWA) is thought to reflect sleep need, increasing in proportion to the length of prior wakefulness and decreasing during sleep. However, the process responsible for SWA regulation is not known. We showed recently that SWA increases locally after a learning task involving a circumscribed brain region, suggesting that SWA may reflect plastic changes triggered by learning. Methodology/Principal Findings. To test this hypothesis directly, we used transcranial magnetic stimulation (TMS) in conjunction with high-density EEG in humans. We show that 5-Hz TMS applied to motor cortex induces a localized potentiation of TMS-evoked cortical EEG responses. We then show that, in the sleep episode following 5-Hz TMS, SWA increases markedly (+39.1±17.4%, p
AB - Background. Sleep slow wave activity (SWA) is thought to reflect sleep need, increasing in proportion to the length of prior wakefulness and decreasing during sleep. However, the process responsible for SWA regulation is not known. We showed recently that SWA increases locally after a learning task involving a circumscribed brain region, suggesting that SWA may reflect plastic changes triggered by learning. Methodology/Principal Findings. To test this hypothesis directly, we used transcranial magnetic stimulation (TMS) in conjunction with high-density EEG in humans. We show that 5-Hz TMS applied to motor cortex induces a localized potentiation of TMS-evoked cortical EEG responses. We then show that, in the sleep episode following 5-Hz TMS, SWA increases markedly (+39.1±17.4%, p
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U2 - 10.1371/journal.pone.0000276
DO - 10.1371/journal.pone.0000276
M3 - Article
C2 - 17342210
AN - SCOPUS:39149130092
VL - 2
JO - PLoS One
JF - PLoS One
SN - 1932-6203
IS - 3
M1 - e276
ER -