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Brain-Computer Interfaces and Assistive Technologies

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Brain-Computer Interfaces and Assistive Technologies

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    1. Brain-Computer Interfaces and Assistive Technologies Jennie Schei

    2. ASPICE Project Develop technological aid to improve mobility and communication with surrounding environment Navigation system for a robot Use standard input devices Use BCI

    3. ASPICE Architecture

    4. ASPICE Elements Increase sense of independence Reduce caregiver workload Increase sense of privacy Increase sense of presence in environment Track patient’s system interaction

    5. Brain-Computer Interface (BCI) “direct communication pathway between the brain and an external devise” Use electrical brain activity (EEG) Use machine learning algorithms

    6. How BCI Works

    7. EEG and Evoked Responses

    8. Cortical Plasticity Neurons that fire together, wire together Reorientation of response maps, usually adjacent Plasticity in BCI

    9. Invasive vs. Noninvasive EEG

    10. Types of BCI Visual Prosthetics Retinal implants Cognitive Prosthetics Circuitry to stimulate or mimic local activity Motor Prosthetics Cortical control using EEG

    11. Evoked Potentials in the Visual Cortex Larger ERPs with stronger stimulus ERPs to electrical retinal stimulation

    12. Bionic Eye

    13. BCI Controlling Motor Movements

    14. BCI Used to Tweet

    15. BCI Used for Gaming

    16. Usability Is this practical? What are some downfalls? What are some benefits? Other applications?

    17. Other BCI Methods MEG Utilize magnetic field in brain Blood Response fMRI Optical Imaging techniques

    18. BCI and Assistive Technologies

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