16-channel micro-electrocorticography (micro-ECoG) grid of nonpenetrating microwires, used to record millimeter scale local field potentials from the cortical surface.
Decoding spoken words using local field potentials recorded from the cortical surface
Communication in patients with “locked-in syndrome” is often an arduous task. Intuitive and rapid communication may be restored by directly interfacing with language areas of the cerebral cortex. We used a grid of closely spaced, nonpenetrating micro-electrodes to record local field potentials (LFPs) from the surface of face motor cortex and Wernicke’s area. From these LFPs we successfully classified a small set of words on a trial-by-trial basis at levels well above chance, demonstrating that this approach can be used to potentially restore communication to locked-in patients. Go to PubMed
Detection and classification of multiple finger movements using a chronically implanted Utah Electrode Array
This work demonstrates a decoding method that can detect and classify finger movements without any a priori knowledge of the data, task, or behavior, and lend further support that a chronically implanted Utah Electrode Array is suitable for both acquiring and decoding neuronal data. Go to PubMed
A new University of Utah study shows that arrays of tiny electrodes placed between the skull and the brain can accurately detect brain signals that command arm movements. Read the full release at www.unews.utah.edu/p/?r=062409-1