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Temporal Sequence Parameters in Isodistributional Surrogate Data: Model and Exact Expressions

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3 Author(s)
Turukalo, T.L. ; Fac. of Tech. Sci., Dept. of Commun. & Signal Process., Univ. of Novi Sad, Novi Sad, Serbia ; Bajic, D. ; Zigon, N.J.

In this paper, a set of formulae for the temporal spontaneous baroreceptor reflex (sBRR) sequence parameters in isodistributional (ID) surrogate data is derived. This is facilitated by representing successive positive or negative amplitude changes as a Markov chain model. The obtained analytical tool measures the effect of random fluctuations on the overall number of sequences, estimated from the original biomedical time series. The formulae are tested using ID surrogates of systolic blood pressure and pulse-interval signals recorded from 13 healthy male Wistar rats at baseline conditions.

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Biomedical Engineering, IEEE Transactions on  (Volume:58 ,  Issue: 1 )