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Research and Design of the Sistem That Getting and Handling Mice Brain Signal

Author: DingLei
Tutor: WangMin
School: Shandong University of Science and Technology
Course: Signal and Information Processing
Keywords: EEG Wireless Transmission USB transfer LabVIEW
CLC: TH789
Type: Master's thesis
Year: 2010
Downloads: 53
Quote: 0
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Abstract


EEG electrical signal activities of the group of brain cells in the cerebral cortex reflects , is a weak biological signals , including all physiological information , but also can reflect most of the pathological state . EEG can reflect the state of health of the organism , can even reflect the complex psychological and physiological conditions . Research EEG has important implications for the treatment of clinical disease , and have a role in promoting the field of biological electrophysiology . With the popularization of computer technology , brain-computer interface system has become the most important way to study EEG . Signal acquisition , processing, display, intuitive to analyze the results . The brain-computer interface of the most important use is for those congenital brain injury or severe dyskinesia , but thinking in patients with normal provide automatic control channels , to improve their quality of life . It has become a major research focus of rehabilitation engineering , biomedical engineering and human-computer automatic control . Departure from the laboratory teaching requirements , designed in a detailed study of the basic characteristics of the electrical signals of the brain based on a set of wireless transmission mode to achieve EEG acquisition system . Extraction and analysis of the design system through two aspects of the design of the hardware and software on the EEG of the rat . The hardware part includes a voltage follower circuit module, the amplifying circuit module , a low pass filter circuit module , A / D converting circuit module , a wireless transmission with a USB transmission module . Software use powerful the LabVIEW operating software upload to PC signal processing of digital filtering, spectrum analysis , will eventually result in an intuitive form of waveform presented . Through repeated experiments and repeated failures to summarize , and ultimately to achieve in the laboratory of brain-computer interface system design , able to display a stable waveform signal to obtain a satisfactory design results have important reference value and application value .

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