稳态运动视觉诱发电位的诱发及在脑机接口中的应用进展

基于稳态运动视觉诱发电位(SSMVEP)的脑机接口(BCI)能够减少使用者的视觉疲劳,但其信号强度和系统性能仍不能代替基于稳态视觉诱发电位(SSVEP)的BCI.本文对提高SSMVEP信噪比的两种思路以及SSMVEP在BCI中的应用进行了综述.首先归纳和总结了影响SSMVEP诱导和性能的3个主要因素,即运动视觉刺激方式...

Induction of steady-state motion visual evoked potential and its application in brain-computer interface

As a new type of structural and functional material, foamed aluminum has good heat resistance, noise reduction, and energy absorption. Based on the rand function of Matlab, a three-dimensional random ball model of closed cell aluminum foam was established by greedy algorithm and infinite iteration principle. The problems, including low porosity, complex calculation, high computational cost and low simulation level and so on, in the 3D modeling of foam aluminum were solved. A foam aluminum model with porosity of 90% was obtained, and the connection between the model and finite element software was realized, which provided an effective numerical method for the foam aluminum model optimization and physical performance analysis. The foam aluminum sandwich plate model and foam aluminum composite material can be obtained through the application of the model, which can be used for computer simulation and related research work, such as automotive anti-collision beam, building materials, noise barrier plate.