Examination of Statistical Instability of Electroencephalograms.

The study examined stochastic stability of EEG samples recorded in succession from the same healthy volunteer at unchanged state. The absence of statistical repetitions not only for EEG samples, but also for the corresponding spectral densities was proven. A method to calculate the pairwise comparison matrices of ECG samples and quasi-attractors was proposed.

New Effect in Physiology of Human Nervous Muscle System.

A new phenomenon (or paradox) consisting in higher statistical stability of samples, for example, tremorograms, in a group of different subjects than in the same subject in unchanged homeostasis. At the same time, it turns out that 15 different subjects are more similar (statistically) to each other than one person to himself in 15 repetitions of tremorogram recording (in unchanged homeostasis). This poses serious problems for physiology and medicine, and in the context of transition to individualized medicine, this raises the question of how different people can be compared if they are statistically more similar than one person to himself.

Experimental Analysis of the Chaotic Dynamics of Muscle Biopotentials under Various Static Loads.

Arbitrary and involuntary movements were studied from the position of the new chaos-self-organization theory. Analysis of organization of tappingrams and tremorograms within the framework of N. A.

Experimental Study of Statistical Stability of Cardiointerval Samples.

In 1947 M. A. Bernstein proposed a hypothesis about "repetition without repetition" in biomechanics that was confirmed in psychophysiology by the Eskov-Zinchenko effect.

Experimental Verification of the Bernstein Effect "Repetition without Repetition".

The necessity of studying the Bernstein effect "repetition without repetition" is dictated by the absence of quantitative description of this effect and models that could describe such unique phenomena as repeated limb movements in a person in various mental states. In 30 nominally healthy volunteers (15 men, 15 women aged 24-25 years), tappingrams and tremorograms were recorded using an eddy current sensor with an oscillatory circuit (1 MHz) and an amplifier with recording frequency 0-1000 Hz and minimum amplitude of 0.01 mm.