The international 10–20 system revisited: Cartesian and spherical co-ordinates
The international 10–20 system revisited: Cartesian and spherical co-ordinates
复制标题
重新审视国际 10-20 系统：笛卡尔坐标和球坐标
作者：
Koen B. E. Böcker;Jurgen A. G. Avermaete;M. M. C. Berg
像偶极源定位这样的方法需要精确的电极位置坐标。文献中F3、F4、P3、P4的坐标值不同。这是由于所涉及的计算出乎意料的复杂性，并且由于这些电极放置的不准确但广泛使用的控制程序而加剧。我们提出了一个10-20系统的坐标表，并给出了确定10-20系统中路位置坐标的方法。讨论了使用错误坐标对偶极子源定位精度的影响。
SummaryMethods like dipole source localization require an exact specification of the co-ordinates of electrode positions. Different values for the co-ordinates of F3, F4, P3 and P4 are encountered in literature. This is due to the,unexpected complexity of the calculations involved and aggravated by an inaccurate but widely used control procedure for the placement of these electrodes. We present a table of co-ordinates for the 10–20 system together with a method for determining the co-ordinates of mid-way positions within the 10–20 system. The consequence of using erroneous co-ordinates on the accuracy of dipole source localization is discussed.