Static Magnetic Field Stimulation over Parietal Cortex Enhances Somatosensory Detection in Humans
Static Magnetic Field Stimulation over Parietal Cortex Enhances Somatosensory Detection in Humans
复制标题
顶叶皮质静磁场刺激增强人类体感检测
DOI：
10.1523/jneurosci.2123-16.2017
复制
发表时间：
2017-04-05
影响因子：
5.3
通讯作者：
Oliviero, Antonio
中科院分区：
文献类型：
--
作者：
Carrasco-Lopez, Carmen;Soto-Leon, Vanesa;Oliviero, Antonio
神经元振荡在人类躯体感觉知觉中的作用目前尚不清楚。为了解决这个问题，在这里，我们使用非侵入性脑刺激，人工调节皮质网络动态的神经生理和行为记录的背景下。我们证明，经颅静态磁场刺激（tSMS）在体感顶叶皮层增加振荡功率，特别是在α范围内，而不显着影响自下而上的丘脑皮层输入指标的早期皮层成分的体感诱发电位。关键的是，我们接下来表明，顶叶tSMS增强了近阈值体感刺激的检测。有趣的是，这种行为的改善反映了对躯体感觉的习惯性降低。因此，我们的数据提供了因果关系的证据，躯体感觉知觉依赖于顶叶α活动。
The role of neuronal oscillations in human somatosensory perception is currently unclear. To address this, here we use noninvasive brain stimulation to artificially modulate cortical network dynamics in the context of neurophysiological and behavioral recordings. We demonstrate that transcranial static magnetic field stimulation (tSMS) over the somatosensory parietal cortex increases oscillatory power specifically in the alpha range, without significantly affecting bottom-up thalamocortical inputs indexed by the early cortical component of somatosensory evoked potentials. Critically, we next show that parietal tSMS enhances the detection of near-threshold somatosensory stimuli. Interestingly, this behavioral improvement reflects a decrease of habituation to somatosensation. Our data therefore provide causal evidence that somatosensory perception depends on parietal alpha activity.