Study of the Day: Soon Enough, You May Be Able to DVR Your Dreams

New research reconstructs people's memories of Hollywood movie trailers and paves the way for recording our unconscious thoughts

Flickr WarmSleepy.jpg

PROBLEM: Though everyone dreams, very few remember in detail the world they drifted to while they were unconscious. Similarly, what goes on in the minds of people who cannot communicate, such as stroke victims, coma patients, and people with neurodegenerative diseases, is a mystery.

METHODOLOGY: Three members of the University of California, Berkeley research team served as the subjects of the experiment. They remained still inside a Magnetic Resonance Imaging (MRI) scanner for hours at a time while watching two separate sets of Hollywood movie trailers. Functional MRI was used to measure blood flow through the visual cortex, the part of the brain that processes visual information.

While participants viewed the first set of videos, a computer program learned, second by second, to associate visual patterns in the movie with the corresponding brain activity. The second set of clips evoked brain activity that was used as references to test the movie reconstruction algorithm. Finally, the 100 clips that the computer program noted were most similar to the clip that the subject had probably seen were merged to produce a blurry yet continuous reconstruction of the original movie.

RESULTS & CONCLUSION: The researchers succeeded in decoding and recreating dynamic visual experiences or, in this case, the Hollywood movie trailers the participants first watched.

IMPLICATION: This is a major leap toward reproducing internal or unconscious imagery, the researchers say in a news release. As neuroscientist and co-author Jack Gallant puts it, "We are opening a window into the movies in our minds."

SOURCE: The full study, "Reconstructing Visual Experiences From Brain Activity Evoked By Natural Movies," is published in the journal Current Biology.

Image: WarmSleepy/Flickr.

Presented by

Hans Villarica writes for and produces The Atlantic's Health channel. His work has appeared in TIME, People Asia, and Fast Company.

How to Cook Spaghetti Squash (and Why)

Cooking for yourself is one of the surest ways to eat well. Bestselling author Mark Bittman teaches James Hamblin the recipe that everyone is Googling.

Join the Discussion

After you comment, click Post. If you’re not already logged in you will be asked to log in or register.

blog comments powered by Disqus

Video

How to Cook Spaghetti Squash (and Why)

Cooking for yourself is one of the surest ways to eat well.

Video

Before Tinder, a Tree

Looking for your soulmate? Write a letter to the "Bridegroom's Oak" in Germany.

Video

The Health Benefits of Going Outside

People spend too much time indoors. One solution: ecotherapy.

Video

Where High Tech Meets the 1950s

Why did Green Bank, West Virginia, ban wireless signals? For science.

Video

Yes, Quidditch Is Real

How J.K. Rowling's magical sport spread from Hogwarts to college campuses

Video

Would You Live in a Treehouse?

A treehouse can be an ideal office space, vacation rental, and way of reconnecting with your youth.

More in Health

Just In