Seamless tracing of human behavior using complementary wearable and house-embedded sensors.

This paper presents a multimodal system for seamless surveillance of elderly people in their living environment. The system uses simultaneously a wearable sensor network for each individual and premise-embedded sensors specific for each environment. The paper demonstrates the benefits of using complementary information from two types of mobility sensors: visual flow-based image analysis and an accelerometer-based wearable network.

Complete scanpaths analysis toolbox.

This paper presents a complete open software environment for control, data processing and assessment of visual experiments. Visual experiments are widely used in research on human perception physiology and the results are applicable to various visual information-based man-machine interfacing, human-emulated automatic visual systems or scanpath-based learning of perceptual habits. The toolbox is designed for Matlab platform and supports infra-red reflection-based eyetracker in calibration and scanpath analysis modes.

[Changes in synaptic potentials and axonal delays as factors causing epileptic instability of neuronal networks].

Synaptic weights, axonal delays and excitability thresholds are three basic parameters influencing the function of neuronal network as a dynamic system. Changes of the general level of the signal flow, without changes in relation between excitatory and inhibitory connections can cause pathologic oscillations in the network. The conductivity in neuronal nets depends on electrochemical processes and may be influenced by the pH-status, ion concentrations, among other parameters.

[Study of the mechanisms of the development of epileptic activity in neuronal networks using a simulation model].

The occurrence of synchronous, self-sustaining seizure activity is one of the basic mechanisms underlying epileptic attacks. Using a mathematical model of neuronal network in various simulation experiments carried out in digital computer the conditions were studied of the development of pathological epileptic activity and the conditions of the parameters of this network affecting its stable function. After exceeding of a threshold value in the relation between the weights of the stimulating and inhibiting synapses an unstable epileptic response appears.

A trial of cybernetic explanation of the development and regression of benign child epilepsy.

Using as an example the verification of a hypothetic mechanism of the course of benign child epilepsy the authors demonstrate a method of simulation investigations of neuron-like networks. The structure and possibilities of a digital system for network modelling are discussed, including the properties of the neuron-like element used presently for the experiments. The results of the simulation investigations described in the second part of the paper confirm the hypothesis that an attack of benign child epilepsy is a result of transgressing of the stability border by a fragment of the neuronal network with development in it of a self-exciting activity of a neuronal group.