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Premium member Presentation Transcript Brain Computer Interface: Brain Computer Interface 指導老師：李柏磊 副教授 報告者：電機三 B 葉姿妤 電機二 A 蕭有容 電機二 B 陳迺惠Outlines: Outlines What is BCI? How does it work? Brain Wave Control Simple introduction of the brain Data Acquisition Apps Drawbacks & Future Q&APowerPoint Presentation: You can make it with BCI ！PowerPoint Presentation: What is BCI?PowerPoint Presentation: Brain -Computer Interface - Direct Neural Interface or Brain-Machine Interface Direct communication pathway between a brain and an external device. Research on BCIs began in the 1970s at the University of California Los AngelesHow does it work?: How does it work? Signal Acquisition Signal Processing DevicesBrain Wave Control: Brain Wave ControlBrain Wave Control: Brain Wave Control Active α (8 – 12 Hz): relaxed/reflecting β (12 – 30 Hz): alert/working - Training - MisjudgmentBrain Wave Control: Brain Wave Control Passive Evoked potentialsBrain Wave Control: Brain Wave Control Passive Evoked potentialsBrain Wave Control: Brain Wave Control Passive Evoked potentialsSimple introduction of the brain: Simple introduction of the brain Focus on cortexPowerPoint Presentation: Cerebral cortex 大腦皮質 Cerebellum 小腦 Midbrain 中腦Structure of the cortex: Structure of the cortexCortex(皮質): Cortex( 皮質 )PowerPoint Presentation: Primary Somatosensory Cortex 主要身體感覺區 Primary Motor Cortex 主要運動區 Motor Association Cortex 運動聯合區PowerPoint Presentation: Sensory Association Area 感覺聯合區 Visual Association Area 視覺聯合區 Visual Cortex 視覺皮質區 Wernicke's Area 威氏區PowerPoint Presentation: Prefrontal Cortex 前額葉皮質區 Speech Center (Broca‘s Area) 布洛卡氏區 Auditory Cortex 聽覺皮質區 Auditory Association Area 聽覺聯合區Data Acquisition: Data AcquisitionData Acquisition: Data Acquisition Invasive BCIs Non-Invasive BCIs Partially-Invasive BCIs Wireless BCIsInvasive BCIs: Invasive BCIs Implanted: grey matter Signals: highest quality Scar-tissue build-up Target: repairing damaged sight providing new functionality to persons with paralysis Artificial Vision SystemElectrode Arrays: Electrode ArraysApp.- Artificial Vision: App.- Artificial Vision 4X4 16 pixels 8X8 64 pixels 12X12 144 pixels 16X16 256 pixels 32X32 1024 pixels 128X128 16384 pixelsNon-Invasive BCIs: Non-Invasive BCIs poor signal resolution power muscle implants and restore partial movement Interfaces EEG MEG MRIMEG: MEG Magnetoencephalography Magnetic Field: 10 -15 T ~10 -13 T (Weak!!) S.Q.U.I.D. Sensors Shielded RoomMagnetic Field: Magnetic FieldPartially-Invasive BCIs: Partially-Invasive BCIs Implanted: skull lower risk of forming scar-tissue in the brain Signal quality between invasive BCIs & non-invasive BCIsWireless BCIs: Wireless BCIs More practical Embedding multiple chips More complicated thoughts Transmission with RF key requirement: keep the heat downWireless BCIs: Wireless BCIs Size: 2cm in diameter 、 8cm thick Low cost Receive Distance: 10m ~ 50mExamples of BCI: Examples of BCIRats implanted with BCIs in Theodore Berger’s experiments: Rats implanted with BCIs in Theodore Berger ’ s experimentsMonkey operating a robotic arm with BCIs: Monkey operating a robotic arm with BCIsControlling a robotic dog with BCI: Controlling a robotic dog with BCIA man operates the computer with his EEG: A man operates the computer with his EEGA man operates the computer with his EEG: A man operates the computer with his EEGPowerPoint Presentation: P300->300ms 頂葉Disadvantages: Disadvantages Headache Exhausting Laziness DegenerateFuture: Future Integrate with different territory From lab to factory Nursing and medical treatmentReferences: References http://spectrum.ieee.org/biomedical/devices/the-brainmachine-interface-unplugged/0 http://www.seeingwithsound.com/etumble.htm http://www.yct.com.tw/life/98drum/98drum17.pdf http://www.libertytimes.com.tw/2007/new/may/24/today-life3.htm http://hi.ctust.edu.tw/mediawiki/index.php/%E8%85%A6%E6%A9%9F%E4%BB%8B%E9%9D%A2%28BCI%29Q&A: Q&A ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 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