In a study that was conducted recently, researchers looked into the effect in the brain of Modafinil on two kinds of memory. One kind of memory is called context-specific fear memory. It is believed to occur in the amygdala as well as in the hippocampus. Particularly, modafinil training prior to the event enhanced the memory of context-specific fear however; it did not impact the memory of tone. Contextual fear memory is easy to master, and isn’t believed to require working memory.