The present invention (per Error! Reference source not found.overview) consists of a method and system incorporating non-linear dynamic (NLD) analysis such as entropy or other complexity analysis monitoring continuous (Error! Reference source not found. EF)or evoked signals from a biological subject (Error! Reference source not found. A) where such a system comprises of processing steps including: a) the combination of a biological signal evoked as a result of patient stimulation (Error! Reference source not found.BC) presented to a biological subject and a non-linear analysis method capable of capturing temporal changes in signal order or regularity
