Neuromodulation: Current Practice, Limitations, and Considerations

Right now, signals from your brain are instructing the muscles around each eye to contract, panning your view left to right and adjusting focus along the way. The photoreceptors in your eyes react to the photons reflecting off each letter, ultimately transmitting information through the optic nerve, back to the primary visual cortex, where they are translated into meaning. Although it goes mostly unnoticed, your nervous system is constantly hard at work.