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Study of Stimulation Effects on Different Bands of EEG Signal

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dc.contributor.advisor Ahmad, Prof. Dr. Mohiuddin
dc.contributor.author Ghosh, Tarun Kanti
dc.date.accessioned 2018-05-15T11:06:34Z
dc.date.available 2018-05-15T11:06:34Z
dc.date.copyright 2016
dc.date.issued 2016-09
dc.identifier.other ID 1215501
dc.identifier.uri http://hdl.handle.net/20.500.12228/74
dc.description This thesis is submitted to the Department of Biomedical Engineering (BME), Khulna University of Engineering & Technology in partial fulfillment of the requirements for the degree of Masters of Science in Biomedical Engineering, September, 2016. en_US
dc.description Cataloged from PDF Version of Thesis.
dc.description Includes bibliographical references (pages 49-52).
dc.description.abstract Brain–computer interfaces (BCIs) are the communication bridge between the human brain and a computer which may be implemented on the basis of steady-state evoked potentials (SSEPs). A brain–computer interface is a direct communication pathway between the brain and an external device. BCIs are often directed at assisting, augmenting, or repairing human cognitive or sensory-motor functions. The field of BCI research and development has since focused primarily on neuroprosthetics applications that aim at restoring damaged hearing, sight and movement. The objectives of the research is to check the different stimulation effects of human brain, to improve the accuracy, higher information transfer rate (ITR), desired bandwidth (BW), and signal to noise ratio (SNR) of BCIs and to identify Power and Energy of different Stimulation Effects on Alpha and Beta bands of EEG signal. In this research the power and energy of Alpha and Beta bands of EEG signal for different stimulation were determined and signal analysis, signal processing, Fast Fourier Transform (FFT), Statistical parameter methods were used. The performance of stimulator depends on many factors such as size and shape of stimulator, frequency of stimulation, luminance, color, and subject attention. Information Transfer Rate (ITR) varies with the change of frequency and size of the visual stimuli. In this research, a circular repetitive visual stimulator (CRVS) of different diameter (2", 2.5"and 3"), color (RGB), frequency (10, 15 and 20 Hz) was used. When the size of the stimulator changes from 2" to 2.5" a greater increase of Alpha wave (58.18%) is observed than Beta wave (13.68%). But a further increase in size from 2" to 2.5" a greater decrease of Alpha wave (45%) is observed than Beta wave (36.59%). en_US
dc.description.statementofresponsibility Tarun Kanti Ghosh
dc.format.extent 53 pages
dc.language.iso en_US en_US
dc.publisher Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh. en_US
dc.rights Khulna University of Engineering & Technology (KUET) thesis/dissertation reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Electroencephalography en_US
dc.subject Stimulation
dc.title Study of Stimulation Effects on Different Bands of EEG Signal en_US
dc.type Thesis en_US
dc.description.degree Masters of Science in Biomedical Engineering.
dc.contributor.department Department of Biomedical Engineering

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