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  • Title: Optimal spatial resolution of epidural and subdural electrode arrays for brain-machine interface applications.
    Author: Slutzky MW, Jordan LR, Miller LE.
    Journal: Annu Int Conf IEEE Eng Med Biol Soc; 2008; 2008():3771-4. PubMed ID: 19163532.
    Abstract:
    Brain-machine interfaces (BMIs) have the potential to improve quality of life for thousands of motor-impaired individuals. Many different signal sources have been investigated for use in controlling a BMI, including scalp EEG, field potentials from inside and the surface of the cerebral cortex, and single-neuron action potentials. A relatively unexplored region for recording signals is the epidural space. This study attempts to help determine the optimal spatial resolution of epidural and subdural electrode arrays using both a mathematical model and spatial spectral analysis. For rats, optimal spacing for both epidural and subdural electrodes was approximately 0.7 mm.
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