Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Brain-machine interfaces"”.
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Strategies for control of neuroprostheses through Brain-Machine Interfaces
The concept of brain controlled machines sparks our imagination with many exciting possibilities. One potential application is in neuroprostheses for paralyzed patients or amputees. The quality of life of those who have extremely limited motor abilities can potentially be improved if we have a …
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Signal Modeling and Data Reduction for Wireless Brain-Machine Interfaces
Brain-machine interfaces (BMIs) provide a uni- or bidirectional communication link between the central nervous system and the outside world. This link facilitates the studying of neuronal mechanisms underlying behavior as well as the treatment of neurological disease. Wired BMIs are limited in the …
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An ultra low power implantable neural recording system for brain-machine interfaces
… direct recordings from different areas of the brain have enabled scientists to gradually understand and unlock the secrets of neural coding. This scientific advancement has shown great promise for successful development of practical brain-machine interfaces (BMIs) to restore lost body functions …
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Using the piezoelectric backscatter signal for remote sensing of neural signals
… record neural activity and serve as the basis of brain-machine interfaces (BMI). Therefore, this research is conducted to design a remote neural sensing system that is based on modulation of the backscatter signal from a piezoelectric element by the neural signals. The hypothesis is that if the …
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Strategies for developing ultrathin, high-density, actively multiplexed neural mapping device
… rise in the interest of diagnosing and treating brain diseases it is critical that electrodes involving brain/machine interfaces have minimal effect on the brain while ensuring conformal coverage and good signal quality. A two-stage attempt is described in this thesis, where technological …
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Conducting polymer wires for intravascular neural recording
Brain-machine interfaces are a technology with the potential to fundamentally change the way people interact with their environment, but their adoption has been hampered by the invasiveness of conventional implanted cortical microelectrode arrays. Llinás et al. have proposed a novel design for …
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Design of High-Resolution SAR ADC for Detection of Sub-Cortical Neuron Action Potentials for BMI Applications
The advancement of brain-machine interfaces (BMIs) requires neural signal acquisition systems that are capable of resolving both fast, low-amplitude action potentials (APs) and slow, higher-amplitude local field potentials (LFPs) under stringent power and area constraints. This thesis presents the …
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A comparative analysis of haptic and EEG devices for evaluation and training of post-stroke patients within a virtual environment
Virtual Rehabilitation benefits from the usage of interfaces other than the mouse and keyboard, but also possess disadvantages: haptic peripherals can utilize the subject's hand to provide position information or joint angles, and allow direct training for specific movements; but can also place …
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Design and development of a fluid actuated neural probe for chronic sensing
… implants have found a niche in circumventing brain dysfunction for brain-machine interfaces and in neuroscience studies for interrogation of neural tissue. The performance of implantable neural probes for chronic applications has been hampered, owing to an inflammatory immune response in the …
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A brain-machine interface for investigating neural representations of navigation in a virtual environment
… the function of different regions of the brain, and the neurons therein. Novel methods are required for probing further beyond standard correlational and knockout analysis. The activity of one brain region might correlate with task relevant variables, and silencing this region can show its …
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Reconfigurable System-on-Chip Architecture for Neural Signal Processing
Analyzing the brain's behavior in terms of its neuronal activity is the fundamental purpose of Brain-Machine Interfaces (BMIs). Neuronal activity is often assumed to be encoded in the rate of neuronal action potential spikes. Successful performance of a BMI system is tied to the efficiency of its …
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Real-time brain-machine interface architectures : neural decoding from plan to movement
Brain-machine interfaces (BMI) aim to enable motor function in individuals with neurological injury or disease, by recording the neural activity, mapping or 'decoding' it into a motor command, and then controlling a device such as a computer interface or robotic arm. BMI research has largely …
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Brain-Machine Interface for Reaching: Accounting for Target Size, Multiple Motor Plans, and Bimanual Coordination
<p>Brain-machine interfaces (BMIs) offer the potential to assist millions of people worldwide suffering from immobility due to loss of limbs, paralysis, and neurodegenerative diseases. BMIs function by decoding neural activity from intact cortical brain regions in order to control external devices …
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Neural Sympathy: Towards Interfaces Compatible with Neural Plasticity
Brain-machine interfaces (BMIs) enable a direct mapping from neural activity to interactions with the world. They have clinically validated applications for patients with severe loss of motor function, but also offer valuable scientific tools for probing the neural mechanisms of how actions are …
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The interplay between information and control theory within interactive decision-making problems
… and the nonlinear filter, decentralized control, brain-machine interfaces, and queuing theory.
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A tailored biocompatible neural interface for long term monitoring in neural networks
… electrodes that can record from neurons in the brain for long periods of time will be of great importance to unravel how the brain accomplishes its functions. However, current electrodes usually cause significant glia reactions and loss of neurons within the adjacent brain parenchyma. To address …
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Representation of Whole-body Navigation in the Primary Sensorimotor and Premotor Cortex
<p>Traditionally, brain-machine interfaces (BMI) recorded from neurons in cerebral</p><p>cortical regions associated with voluntary motor control including primary motor</p><p>(M1), primary somatosensory (S1), and dorsal premotor (PMd) cortices. Wheelchair</p><p>BMI where users’ desired velocity …
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Stimulus Integration and Parsing in the Primate Auditory Midbrain
… multiple sources is a crucial function of the brain. Examples of such integration include multiple stimuli of different modalties, such as visual and auditory, multiple stimuli of the same modality, such as auditory and auditory, and integrating stimuli from the sensory organs (i.e. ears) with …
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NANOSTRUCTURED COMPOSITE FILMS FOR BRAIN-MACHINE INTERFACE APPLICATIONS
… for developing energy-efficient, compact interfaces that integrate bioelectrical activity for personalized medicine. In this frame, advances in thin-film sensors and non-invasive signal processing enable wearable systems to monitor brain and peripheral neural activity [2] in view of the …