Features of electroencephalographic signals acousto-optic processing

K. V. Zaichenko; B. S. Gurevich

doi:10.1117/12.2555476

1 April 2020 Features of electroencephalographic signals acousto-optic processing

K. V. Zaichenko, B. S. Gurevich

Proceedings Volume 11360, Neurophotonics; 1136003 (2020) https://doi.org/10.1117/12.2555476
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Earlier we proposed the method of electrocardiographic signals acousto-optic processing based on application of acousto-optic spectrum analyzers with time integration. This method can be extended also for the electroencephalographic signals processing. However, some features of such signals make some special demands to the acousto-optic device performing the processing. Some elements of electroencephalographic signal which can be the signs of the cerebrum and central nervous system pathologies, can be found and selected only in specific frequency regions which differ from each other by 4…5 orders. Hence, the acousto-optic device which provides the signal processing must operate in very wide frequency range. This range can be attained only using acousto-optic spectrum analyzers with combined space and time integration. Moreover, some specific demands must be made to 2D multielement photodetector used in the mentioned above spectrum analyzers – its accumulation time must bt about 5…20 s because frequency resolution of the device must be of the order of 0,1 Hz. It requires application of the cooler based on Peltier phenomenon. The signal features and the corresponding demands made to the spectrum analyzer, are considered in the paper.

Conference Presentation

Citation Download Citation

K. V. Zaichenko and B. S. Gurevich "Features of electroencephalographic signals acousto-optic processing", Proc. SPIE 11360, Neurophotonics, 1136003 (1 April 2020); https://doi.org/10.1117/12.2555476

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