Phase space in EEG signals of women refferred to meditation clinic
Journal of Biomedical Science and Engineering January 1, 2011 Ateke Goshvarpour, Atefeh Goshvarpour, Saeed Rahati et al. 11 citations
Poincaré plots, a tool for analyzing non-linear patterns in biological signals, can detect changes in brain activity during meditation. In sixteen healthy women, the width of Poincaré plots of EEG signals increased as the time lag between data points grew from one to six, indicating that meditation alters short-term variability in brain signals. This method offers a simple, quantitative way to evaluate EEG data collected over short periods and adapts well to the chaotic nature of such signals.