A new algorithm developed by researchers at Massachusetts General Hospital is able to identify repeat dreams in people who have a colonoscope or an anova tomography.
The algorithm, published online on Tuesday, identifies a person’s first and second dreams, as well as the first and third dreams of repeat dreamers.
“People who have an anovas can have an almost constant stream of dreams, even if they’re not in the scanner,” said Dr. Anand Kumar, the study’s lead author and a professor of clinical and biomedical sciences.
“It’s a really valuable tool.”
The study also found that people who were awake in the morning had fewer repeat dreams than those who were asleep.
The authors wrote that the more people sleep, the more likely they are to have repeat dreams.
The researchers noted that they could not find a similar method for detecting a second dream.
The study is part of a larger effort to identify the types of repeat dreams people have, Kumar said.
“I think it’s a pretty common experience for people,” he said.
“If you go to sleep and you dream about a repeat dream, you’ll have a lot of vivid images of it, and then when you wake up, you can actually recall it.”
He added that the results should not be interpreted as an indication that repeat dreams are normal.
“It’s just that there’s a lot more of these recurrent dreams that are quite different from the ones that we usually see,” Kumar said, “which is really exciting.”