Abstract: Systems and methods for decoding intended symbols from neural activity in accordance with embodiments of the invention are illustrated. One embodiment includes a symbol decoding system for brain-computer interfacing, including a neural signal recorder implanted into a brain of a user, and a symbol decoder, the symbol decoder including a processor, and a memory, where the memory includes a symbol decoding application capable of directing the processor to obtain neural signal data from the neural signal recorder, estimate a symbol from the neural signal data using a symbol model, and perform a command associated with the symbol.

Abstract: Systems and methods for using virtual keyboards for high dimensional controllers in accordance with embodiments of the invention are illustrated. One embodiment includes a virtual keyboard system including a processor, and a memory, including a virtual keyboard application, where the virtual keyboard application directs the processor to display a plurality of 3D keys in a virtual environment, where each 3D key represents at least one symbol via a display device, display a cursor in the virtual environment, where the cursor is movable in at least three dimensions via the display device, obtain a user input data from an input device, move the cursor to a 3D key in the plurality of 3D keys based on the user input data, and record the at least one symbol represented by the 3D key.

Abstract: Systems and methods for using virtual keyboards for high dimensional controllers in accordance with embodiments of the invention are illustrated. One embodiment includes a virtual keyboard system including a processor, and a memory, including a virtual keyboard application, where the virtual keyboard application directs the processor to display a plurality of 3D keys in a virtual environment, where each 3D key represents at least one symbol via a display device, display a cursor in the virtual environment, where the cursor is movable in at least three dimensions via the display device, obtain a user input data from an input device, move the cursor to a 3D key in the plurality of 3D keys based on the user input data, and record the at least one symbol represented by the 3D key.