Lauren was a genetically-engineered Human. Lauren's parents took her as a child to undergo an illegal procedure called accelerated critical neural pathway formation, which dramatically increased her intelligence beyond what Humans would call genius level. This left her, however, with an overly amorous personality. She was prone to believing that many different men, including some she had never met, were in love with her. Lauren's delusions did not extend, however, to Jack. This was ironic as Jack often appeared to be the only man who held any kind of attraction towards her.
Lauren was taken into psychiatric care and lived with others like herself. In 2374, after it was revealed that Doctor Julian Bashir had undergone the same procedure, Doctor Karen Loews – the psychiatrist in charge of Lauren's case – took Lauren, along with Patrick, Jack and Sarina Douglas to Deep Space 9. Dr. Loews believed that meeting someone like them who had managed to fit in to normal society would be helpful to them.
Along with the others, Lauren studied Gul Damar's speech calling for peace talks between the Dominion and the Federation. Together, just by watching the speech, they were able to determine the entire saga of Damar's rise to power without ever having heard any of it before. Bashir was very impressed, and encouraged their thirst for knowledge about the Dominion. They asked to watch the holographic recordings of the peace talks, and determined that the Dominion was stalling for time to solve their shortages of ketracel-white. Had the Federation signed the peace treaty, they would have almost certainly lost the war.
Grateful to them, Starfleet provided Jack and the others with classified reports and war plans. They quickly determined that the Dominion was certain to win the war and that the only way to prevent the loss of billions of lives was to surrender immediately. Unsurprisingly, Captain Benjamin Sisko rejected this immediately. Jack, Patrick and Lauren attempted to take Starfleet's classified information directly to the Dominion, knocking Bashir out and leaving him in Sarina's custody, so they could win the war more quickly, thus saving lives. Jack miscalculated, however, as Sarina released Bashir who then stopped him from meeting with Weyoun. Starfleet, however, remained willing to listen to any ideas they had on how to win the war. (DS9: "Statistical Probabilities")
In 2375, Jack and the others escaped the institute upon hearing Bashir was working on a procedure that would cure Sarina of her inability to properly communicate with others. With Patrick posing as a Starfleet admiral, and Lauren posing as a science division officer, they took her to Deep Space 9 where Bashir was able to perform the procedure successfully. During this second visit to Deep Space 9, Lauren became infatuated with Ensign Nog. (DS9: "Chrysalis")