 ABOUT US
The works of the Group of Biosignal Analysis Fundamentals (GBAF) concentrate on application of methods of nonlinear dynamics to biosignal analysis, mainly EEG. Human brain is a highly nonlinear system that exhibits complex, often chaotic dynamics. EEG-signals represent overall electric activity of the brain. So, methods of nonlinear dynamics may be and should be used to analyze EEG-signals and their changes due to applied chemo-, photo- or magneto-therapy.
Since biomedical signals are generated by complex self-regulating systems physiological time series are extremely inhomogeneous and non-stationary and often show fractal or multifractal temporal structure. A characteristic feature of nonlinear (as opposed to linear) process is the interaction (coupling) of different modes that may lead to non-random signal phase structure. Such collective phase properties of the signal cannot be detected by linear spectral methods. That is why we continue searching for nonlinear characteristics of EEG, HRV, and other biosignals that may be calculated relatively easily in order to facilitate assessing the impact of therapy on patients and to help doctors in diagnostics. We have proposed new methods based on symbolic dynamics and on fractal dimension of biosignal to assess influence of drugs, stress, visible light, and electromagnetic fields on human organism.
GBAF is the only Polish partner in FP 6. Integrate Project SENSATION (IST 507231, Advanced Sensor Development for Attention, Stress, Vigilance & Sleep/Wakefulness Monitoring, 2004-2007).
ACTIVITIES
Research groups of biosignal analysis in the Polish Academy of Sciences
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| Group of Biosignal Analysis Fundamentals |
| Polish Academy of Sciences Medical Research Center |
| Adress: |
5 Pawinskiego Str.
02-106 Warsaw
POLAND |
| phone: |
(+48-22) 658-4572
(+48-22) 668-5250 |
| fax: |
(+48-22) 668-5532 |
| email: |
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