Systems and methods for a brain-computer interface (BCI) to increase a number of degrees of freedom (DOF) of one or more neural signals that are used to interact with the BCI.

An apparatus, system, and method of a brain computer interface in a headset including an augmented reality display, one or more sensors, a processing module, at least one biofeedback device, and a battery. The interface may include a printed circuit board that has the sensors to read bio-signals, provides biofeedback, and performs the processing, analyzing, and mapping of bio-signals into output. The output provides feedback via stimulation of multiple sensory brain systems of a user, including audio and visual on the augmented reality display, or audio and haptic in terms of vibration patterns that a human user may feel. All together this forms a closed-loop system, by detecting the bio-signal, then providing sensory-feedback, which in turn enhances the bio-signal.

For example, in an embodiment, an implant device may comprise a plurality of fibers adapted to receive electrical signals, optical signals, or both electrical and optical signals from neural signals of the brain tissue and to transmit signals, to provide stimulation of the brain tissue, and a controller to receive signals, determine direct neural connections by analyzing waveforms and propagation delays of the received signals, recognize at least one dead or non-functional neuron and determine direct neural connections affected by the at least one dead or non-functional neuron, and forward neural signals around the at least one dead or non-functional neuron by recording the received signals from one side of the at least one dead or non-functional neuron and transmitting the recorded signals to stimulate an other side of the at least one dead or non-functional neuron.