Hori Junichi, Kon Ryuta
Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan.
Annu Int Conf IEEE Eng Med Biol Soc. 2012;2012:4732-5. doi: 10.1109/EMBC.2012.6347024.
The objective evaluation of somatic sensations is expected without a patient's subjective opinions to reduce social problems such as those related to lawsuits for nerve injuries or malingering. In this study, the somatosensory evoked potential (SEP) using the mechanical stimulations of the tactile sensation was measured and analyzed in spatiotemporal domains. The cortical potential mapping projected onto the realistic-shaped model was estimated to improve the spatial resolution of the SEP maps by application of cortical dipole layer imaging. The experimentally obtained results suggest that the spatiotemporal distributions of the SEPs reflect the differences for positions, strengths, and patterns of somatosensory stimulations.
期望在没有患者主观意见的情况下对躯体感觉进行客观评估，以减少诸如与神经损伤诉讼或诈病相关的社会问题。在本研究中，对使用触觉机械刺激的体感诱发电位（SEP）在时空域进行了测量和分析。通过应用皮质偶极层成像，估计投射到逼真形状模型上的皮质电位图，以提高SEP图的空间分辨率。实验获得的结果表明，SEP的时空分布反映了躯体感觉刺激的位置、强度和模式的差异。
