The reaction of the regulatory systems of the neuromuscular system of the human to the various acoustic effects (white noise, rhythmic music, classical music, hard rock) using special methods (e.g. chaos theory, self-organization) and methods of conventional statistics was studied. The state of hearing with or without acoustic impact is studied. However, the approach used is based on the analysis of the quasi-attractors parameters of the neuromuscular system (postural tremor) with simultaneous registration of left and right hand tremorogramm (in terms of sound effects). Acoustic effects played a role of a disturbing factor for tremor regulation (and muscle activity); it changes the psychophysiological state of the subject (N.A. Bernstein C and D regulation system). The designed matrix method of analysis enables the identification of systems with chaotic organization that was shown in this work by comparing left and right hand tremorogramm of subjects at different acoustic effects. The acoustic effects are regarded as disturbing influences affecting the mental state of homeostasis. In this case the main task is a quantitative assessment of mental status test calculations by tremorogramm parameters. Quasi-attractor parameters calculation method demonstrates the differences in tremorogramm of left and right hands and tremor responses to acoustic feedback. This employs a new approach in the evaluation of motor asymmetry and the method of recording the parameters of mental homeostasis by tremorogramm of chaotic dynamics. The problem of registering human mental status in cognitive psychology is resolved with a high degree of uncertainty (Bernstein). The acoustic effects are considered as disturbance affecting the mental state of homeostasis. In this case the main task is to hold a quantitative assessment of the mental state by means of calculating tremorogramm parameters. A method for calculating quasi-attractor parameters, which shows differences in left and right hand tremorogramms and tremor responses to acoustic feedback. In fact, a new approach in evaluating motor asymmetry and the method of recording the parameters of mental homeostasis by chaotic dynamics tremorogramm are proposed.