Neuromagnetic correlates of adaptive plasticity across the hand-face border in human primary somatosensory cortex.
Neuromagnetic correlates of adaptive plasticity across the hand-face border in human primary somatosensory cortex.
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人类初级体感皮层手脸边界适应性可塑性的神经磁相关性
DOI:
10.1152/jn.00628.2015
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发表时间:
2016
影响因子:
2.5
通讯作者:
Farnè A
中科院分区:
文献类型:
--
作者:
Muret D;Daligault S;Dinse HR;Delpuech C;Mattout J;Reilly KT;Farnè A
It is well established that permanent or transient reduction of somatosensory inputs, following hand deafferentation or anesthesia, induces plastic changes across the hand-face border, supposedly responsible for some altered perceptual phenomena such as tactile sensations being referred from the face to the phantom hand. It is also known that transient increase of hand somatosensory inputs, via repetitive somatosensory stimulation (RSS) at a fingertip, induces local somatosensory discriminative improvement accompanied by cortical representational changes in the primary somatosensory cortex (SI). We recently demonstrated that RSS at the tip of the right index finger induces similar training-independent perceptual learning across the hand-face border, improving somatosensory perception at the lips (Muret D, Dinse HR, Macchione S, Urquizar C, Farnè A, Reilly KT.Curr Biol24: R736–R737, 2014). Whether neural plastic changes across the hand-face border accompany such remote and adaptive perceptual plasticity remains unknown. Here we used magnetoencephalography to investigate the electrophysiological correlates underlying RSS-induced behavioral changes across the hand-face border. The results highlight significant changes in dipole location after RSS both for the stimulated finger and for the lips. These findings reveal plastic changes that cross the hand-face border after an increase, instead of a decrease, in somatosensory inputs.
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DOI:
10.1093/brain/awv161
发表时间:
2015-08
期刊:
Brain : a journal of neurology
影响因子:
--
作者:
Makin TR;Scholz J;Henderson Slater D;Johansen-Berg H;Tracey I
通讯作者:
Tracey I
影响因子:
3
作者:
M. Schweigert
通讯作者:
M. Schweigert
影响因子:
3.7
作者:
Eickhoff, S. B.;Grefkes, C.;Zilles, K.
通讯作者:
Zilles, K.
影响因子:
9.2
作者:
Muret D;Dinse HR;Macchione S;Urquizar C;Farnè A;Reilly K
通讯作者:
Reilly K
影响因子:
2.7
作者:
S. Williamson;L. Kaufman
通讯作者:
L. Kaufman