Old news: Colors and confessing criminals. New news: Changing someones dreams by turning on the lights

I posted something before about getting criminals to confess by changing room color and even that seemed to have better sources than this article.

Studies show that you can bring about a dream in another person. One way is by holding an open bottle of perfume under the sleeper's nose. Another is by whistling. A third way is by blowing air across the sleeper's face with a fan. Someone else can also affect the content of a sleeper’s dream. For example, turning on a light produces happier dreams. And darkening an already bright room can induce nightmares.

We're missing some sources here aren't we? The author has them later in the article for things like anxiety's effects on dreaming and remembering dreams... just seems to be missing some here. hmmm... I wonder.