Nonuniform state-space reconstruction and coupling detection

Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Jul;82(1 Pt 2):016207. doi: 10.1103/PhysRevE.82.016207. Epub 2010 Jul 9.

Abstract

We investigate the state space reconstruction from multiple time series derived from continuous and discrete systems and propose a method for building embedding vectors progressively using information measure criteria regarding past, current, and future states. The embedding scheme can be adapted for different purposes, such as mixed modeling, cross-prediction and Granger causality. In particular, we apply this method in order to detect and evaluate information transfer in coupled systems. As a practical application, we investigate in records of scalp epileptic EEG the information flow across brain areas.