Cerebral magnetic fields to lingual stimulation |
| |
| Institution: | 1. Department of Neurology, Massachusetts General Hospital, Boston, MA, USA;2. Harvard Medical School, Boston, MA, USA;3. Department of Mathematics and Statistics, Boston University, Boston, MA, USA;4. Center for Systems Neuroscience, Boston University, Boston, MA, USA;1. Department of Brain and Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea;2. Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea;3. The Research Institute of Basic Sciences, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea;4. Department of Neurosurgery, Seoul National University Hospital, Seoul, Republic of Korea;1. Institute of Neuroscience, Université Catholique de Louvain (UCL), B-1200 Brussels, Belgium;2. Health Psychology Group, University of Leuven (KUL), Leuven, Belgium |
| |
| Abstract: | We recorded cerebral magnetic fields to electric stimulation of the tongue in 7 healthy adults. The two main deflections of the response peaked around 55 msec (P55m) and 140 msec (N 140 m). During both oof them the magnetic field pattern, determined with a 7- or 24-channel SQUID magnetometer, suggested a dipolar current source. The topography of P55m can be explained by a tangential dipole at the first somatosensory cortex (SI) in the posterior wall of the central sulcus. The equivalent source of N140m is, on average, about 1 cm lateral to the source of P55m. The reported method allows non-invasive determination of the cortical tongue representation area. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
