Galina Ivanova

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We compared the performance of 22 algorithms for independent component analysis with the aim to find suitable algorithms for applications in the field of surface electrical brain activity analysis. The quality of the separation is assessed with four performance measures: a correlation coefficient based index, a signal-to-interference ratio, a(More)
Due to the high diversity of cases and the variety of treatment modalities, the information to be managed and processed in therapy evaluation is excessive in many neurological diseases. Additionally, in order to gain more insight into, not only the disorders, but also the applied therapies, more objectivity is requested in clinical practice. Therefore, in(More)
Electrophysiological signals such as the EEG, MEG, or LFPs have been extensively studied over the last decades, and elaborate signal processing algorithms have been developed for their analysis. Many of these methods are based on time-frequency decomposition to account for the signals' spectral properties while maintaining their temporal dynamics. However,(More)
Biofeedback and a variety of brain-computer-interface methods imply as very first stages the obtainment of control of selected signals e.g. the related generating psycho-physiological processes. The basic mechanism in the learning phase is the operant conditioning, which represent a complex behavioral method consisting of several components. One of the most(More)
Electrical brain responses during performance of cognitive tasks contain not only evoked, but also induced activity reflecting different processes. These activities are often partially overlapped in time and frequency, so that they are even more difficult to be separated in single-trial. Therefore, online applications based on induced brain activity require(More)
The study reports the results of toxicity tests for several insecticides which are allowed to be used on greenhouse plants (Admiral, Mospilan, Spintor, and BT), as applied to different developmental stages of the predatory bugs Nesidiocoris tenuis Reuter and Macrolophus pygmaeus H.-S. (family Miridae), which feed on whiteflies, aphids, thrips, and spider(More)
Study aim. The efficacy of Russian-produced recombinant interleukin-2 (IL-2) in the complex treatment of encephalitis was studied in children. Materials and methods. A total of 40 patients aged from six months to 17 years were treated. Drug was given at a dose of 0.5 mg/day by i.v. infusion for three days in acute cases and for five days in chronic cases.(More)
AIM To evaluate motor pathways involvement in children with multiple sclerosis. PATIENTS AND METHODS We used transcranial magnetic stimulation method. 9 children with relapsing-remitting multiple sclerosis (mean duration 1,68 years) and 20 controls were enrolled. RESULTS In most of the cases findings in multiple sclerosis group were abnormal. More often(More)
A large number of topics in biology, medicine, neuroscience, psychology and sociology can be generally described via complex networks in order to investigate fundamental questions of structure, connectivity, information exchange and causality. Especially, research on biological networks like functional spatiotemporal brain activations and changes, caused by(More)
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