Presentation 2014-11-21
Effects of Skilled Training on the Dynamics of Sleep Electroencephalogram in Rat Motor cortex
Yuka ANZAI, Akihiro KARASHIMA, Norihiro KATAYAMA, Mitsuyuki NAKAO,
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Abstract(in English) Recently, many sleep researchers are interested in the relationship between sleep and synaptic plasticity. In this study, we trained rats in skilled reaching, and measured sleep EEG in the motor cortex after the training. We found that i) slow wave EEG, whose frequency is 0.5-4.5Hz, was increased for 4h after the training in both sides of the motor cortex, ii) the progressive increment of the delta power of the trained side relative to the untrained side was found, but this asymmetry was no longer present after 4h of sleep. These results suggest that the training of skilled reaching, which presumably induces synaptic potentiation, results in slow wave EEG increases during subsequent sleep, and sleep returns the synaptic weight to a baseline level.
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Keyword(in English) Sleep / Skilled Reaching Task / Electroencephalogram
Paper # MBE2014-58
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Committee MBE
Conference Date 2014/11/14(1days)
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Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Effects of Skilled Training on the Dynamics of Sleep Electroencephalogram in Rat Motor cortex
Sub Title (in English)
Keyword(1) Sleep
Keyword(2) Skilled Reaching Task
Keyword(3) Electroencephalogram
1st Author's Name Yuka ANZAI
1st Author's Affiliation Graduate School of Information Sciences, TOHOKU University()
2nd Author's Name Akihiro KARASHIMA
2nd Author's Affiliation Graduate School of Information Sciences, TOHOKU University
3rd Author's Name Norihiro KATAYAMA
3rd Author's Affiliation Graduate School of Information Sciences, TOHOKU University
4th Author's Name Mitsuyuki NAKAO
4th Author's Affiliation Graduate School of Information Sciences, TOHOKU University
Date 2014-11-21
Paper # MBE2014-58
Volume (vol) vol.114
Number (no) 325
Page pp.pp.-
#Pages 4
Date of Issue