Ampakines capable of improving cognition by enhancing brain activity under normal circumstances may also have the potential to reduce the harmful or unwanted effects of sleep deprivation. (CX717 by Cortex Pharmaceuticals)
Even the lowest dose of modafinil, an ampakine, improved the wakefulness and cognitive performance of sleep-deprived people; they work in part by boosting glutamate, a key neurotransmitter that facilitates learning & learn and encodes memory.