A psychologist from the University of Hertfordshire has created an iPhone app designed to manipulate dreams, and he's looking for volunteers to test it out. It's all part of a study launched by Prof. Richard Wiseman, who teamed up with software company YUZA to develop Dream:ON -- an app that monitors users' behavior during sleep and plays specific "soundscapes" as they dream. According to the researchers, each of these sound patterns has been calibrated to conjure up especially pleasant images, which, they hope, will influence a user's dreams.

If all goes to plan, these sounds will seep their way into her dreams, though their effects remain to be seen. That's why Wiseman is asking all volunteers to fill out a dream report after each test, in the hopes that their feedback will provide some insight into his app's effectiveness. After a few months, the researcher will review all submitted reports, and if Dream:ON proves successful, more soundscapes -- both free and paid -- could be in the works. For now, the app is available as a free download on the App Store, though an Android version is expected to launch later this year.