Navigation Links
Dreams Could Give Learning a Boost
Date:4/22/2010

Subjects who dreamed about video game did better playing it a second time

THURSDAY, April 22 (HealthDay News) -- Humans have long tried to figure out why we dream. In recent years, controversial research has suggested that we process our memories by dreaming. Now, a new study suggests that dreams also play a role in learning by processing what we've just experienced.

Researchers found that people who dreamed about a maze video game they'd just played did better the next time they tackled it, compared to those who didn't dream about it.

"There are parts of their brain which are actually replaying the memory of walking through the maze, and that will improve that memory and lead to a better performance," said study co-author Robert Stickgold, director of Harvard Medical School's Center for Sleep and Cognition.

Dreams have fascinated people for ages. "We started out a few thousand years ago thinking they were messages from God," Stickgold said. "Then Freud came along and said they're messages from our pernicious, immoral subconscious."

Scientists later thought dreams were "random firings of nerves in the brain stem," Stickgold said. Now, he said, "we're starting to say that at one level, as we've all sort of known all along, it's doing something with our memories."

In the new study, published online April 22 in the journal Current Biology, researchers asked 99 subjects to play a video game in which they had to find their way through a maze with the help of a three-dimensional depiction of it.

Then the participants either stayed awake for two hours or took a nap. They played the maze game again five hours later.

Four participants reported dreaming about the maze while they napped. They were among those who improved the most when they played the maze game for the second time, improving 10 times as much as others who napped.

So did the dreamers learn as they dreamed? It's not entirely clear how the dreams are connected to the experience of playing the maze game, but Stickgold thinks "the dream process reflects a type of underlying brain activity" that determines "what the learning experience means, not learning how to do it better."

There's another mystery: Why did so few people dream about the maze? Fewer than 10 percent of those who took naps did. By contrast, Stickgold said, about 86 percent of those who played an Alpine racer skiing game dreamed about it, he said.

Maybe the game "is not rich enough, not compelling enough," he said. Future research, he said, will try to figure out why that is.

For now, though, at least one brain researcher who is familiar with the study is unimpressed with the findings.

"There is no convincing evidence that sleep has any effects on consolidating memory," said Irwin Feinberg, a professor in residence who studies sleep at the University of California at Davis. Sleep clearly isn't necessary for people to remember things, he said.

But Stickgold said that's a misunderstanding of his research. "No one in the field suggests that you need to sleep to learn things or retain memories," he said.

More information

The National Sleep Foundation has details on sleep.



SOURCES: Robert Stickgold, associate professor, psychiatry, and director, Center for Sleep and Cognition, Harvard Medical School, Boston; Irwin Feinberg, M.D., professor in residence, University of California at Davis; April 22, 2010, Current Biology, online


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Luth Researchs IndicatorEDG(TM) Study Finds Americans Hopes of Achieving Their Dreams Are Fading
2. Road mapping could be key to curing TB
3. What if You Could Help to Influence the NYC Taxi of Tomorrow?
4. Stronger Ozone Standard Could Dramatically Reduce Asthma, Premature Deaths
5. Mechanical forces could affect gene expression
6. Anger Could Ruin Your Relationship
7. New research on type 2 diabetes could benefit young adults with the condition
8. Biomarker could help doctors tailor treatment for rheumatoid arthritis
9. Stress Hormone Could Be Key to Alcoholism
10. Rotavirus Vaccine Could Save Millions of Children Worldwide
11. Vitamin D supplements could fight Crohns disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... Long Beach, CA (PRWEB) , ... June 25, 2016 , ... ... from UCLA with Magna Cum Laude and his M.D from the David Geffen School ... San Diego and returned to Los Angeles to complete his fellowship in hematology/oncology at ...
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits ... terms of the latter, setting the bar too high can result in disappointment, perhaps ... slow progress toward their goal. , Research from PsychTests.com reveals that ...
(Date:6/24/2016)... ... June 24, 2016 , ... June 19, 2016 is World Sickle Cell ... pain and the benefits of holistic treatments, Serenity Recovery Center of Marne, ... Cell Disease. , Sickle Cell Disease (SCD) is a disorder of the red blood ...
(Date:6/24/2016)... ... 2016 , ... Global law firm Greenberg Traurig, P.A. announced that 20 Florida ... their peers for this recognition are considered among the top 2 percent of lawyers ... as members of this year’s Legal Elite Hall of Fame: Miami Shareholders Mark ...
(Date:6/24/2016)... ... June 24, 2016 , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway Pain Relief ... a minimum wage raise to $12 an hour by 2020 and then adjusting it yearly ... lost value of the minimum wage, assure the wage floor does not erode again, and ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 23, 2016 Revolutionary technology includes ... Oticon , industry leaders in advanced audiology and hearing ... Oticon Opn ™, the world,s first internet connected hearing ... IoT devices.      (Photo: http://photos.prnewswire.com/prnh/20160622/382240 ... number of ,world firsts,: , TwinLink™ - ...
(Date:6/23/2016)... June 23, 2016 The vast majority of ... dialysis facility.  Treatments are usually 3 times a week, ... visit, including travel time, equipment preparation and wait time. ... especially grueling for patients who are elderly and frail.  ... nursing and rehabilitation centers for some duration of time. ...
(Date:6/23/2016)... Tenn. , June 23, 2016 /PRNewswire/ ... automating, integrating and transforming the patient payment ... of several innovative new products and services ... of its revenue cycle offerings. These award-winning ... more efficient workflows, remain compliant in an ...
Breaking Medicine Technology: