Goldberger A L, Bhargava V, West B J, Mandell A J
Biophys J. 1985 Sep;48(3):525-8. doi: 10.1016/S0006-3495(85)83808-X.
Electrical activation of the ventricles via the His-Purkinje system is represented on the body surface by a waveform with a broad range of frequency components. We speculate that this process is mediated by current flow through a fractal-like conduction network and therefore that the broadband spectrum of the depolarization waveform should be scaled as a power-law distribution. The prediction is confirmed by Fourier analysis of electrocardiographic data from healthy men. This observation suggests a new dynamical link between nonlinear (fractal) structure and nonlinear function in a stable physiologic system.
通过希氏-浦肯野系统对心室进行电激活，在体表由一个具有广泛频率成分的波形表示。我们推测，这一过程是由电流通过类似分形的传导网络介导的，因此去极化波形的宽带频谱应以幂律分布进行缩放。对健康男性心电图数据的傅里叶分析证实了这一预测。这一观察结果表明，在一个稳定的生理系统中，非线性（分形）结构与非线性功能之间存在一种新的动态联系。
