Biomedical subjects

S V Fomin

Publications and source records attributed to S V Fomin.

3 recordsLinked to original sources

PubMedDate not supplied

[Work of large information systems].

The problem of application of informational ideas to the study of large informational systems, such as brain, is considered. Analysis follows some ideas of Winograd and Kowan's theory of reliable computations in the presence of noise. In the beginning of paper the "material analogy" for intuitive understanding of Shannon's results is proposed. Afterwards there is given the formulation of coding theorem for the case of "informational collective"--a large group of informational sources and receivers. In conclusion it is shown that such properties of neuronal structures as "stochastic" neural connections are reasonable from the point of information theory.

Information Theory↗

PubMedDate not supplied

[Moments in human leg joints during walking].

An automated method is developed to obtain the moments of internal forces in the leg joints during walking. A considerable variability of joints moments is observed, which sufficiently exceeds that of the kinematic parameters of walking. For normal walking three different types of joints moments can be distinguished. The formal foundation for the variability of the moments is given, and a hypothesis is proposed, according to which the variability is associated with the keeping of equilibrium.

Ankle Joint↗

PubMedDate not supplied

[Adaptation in a detector system and differential sensitivity].

It is shown, that if during adaptation the sensitivity of single detectors of the models (1) is constantly decreasing proportionally to the level of their excitation, then the differential sensitivity of the whole system to the stimulus near the adapting stimulus increase. The condition is deduced under which the perceived value of stimulus parameter is invarable during adaptation. Calculated from these conditions invariable values of line inclination, hue of the patch, are in agreement with experimentally obtained data.

Adaptation, Ocular↗