The invention generally relates to systems and methods for stimulating cellular function in biological tissue. In certain embodiments, the invention provides a method for stimulating cellular function within tissue that involves providing a first type of energy to a region of tissue, in which the first type is provided in an amount that inhibits cellular function within the region of tissue, and providing a second type of energy to the region of tissue, in which the second type is provided in an amount that facilitates cellular function within the region of tissue, wherein the combined effect stimulates cellular function within the tissue.