Showing posts with label benefits of sleep. Show all posts
Showing posts with label benefits of sleep. Show all posts

Saturday, July 10, 2010

If you want to check off more items on that to-do list, your best bet may be to think it over and then get some rest.

A new Washington University study found people are more likely follow through with their plans if they memorize them before bedtime. Study participants who tried to carry out their intentions before sleep had less success.

The memory boost is a sort of “trigger effect.” A situation, place or thing the next day will suddenly remind you of your plans. Sleep strengthens the association between context and intention. Researchers say it doesn’t help the direct connection between the person and the message itself.

A process called prospective memory happens during slow wave, or deep sleep. Researchers believe it involves communication between the hippocampus and cortical regions. The hippocampus reactivates recently learned memories and places them in long-term storage.

The study involved four groups of 24 university students. One of the groups learned a test routine in the evening and returned for the test in the morning.
The group who tested in the morning performed the prospective memory task best in the part of the test that emphasized context.

The memory-boost may be helpful for everyday texts. For people who follow sleep hygiene the planning process seems to be an appealing wind-down activity compared to watching television or using a computer.

Wednesday, June 9, 2010

Sleep on it and you’ll be better equipped to tackle more complicated motor tasks, like the endless wailing, shredding guitars solos of “Through the Fire and Flames,” one of the most difficult songs on Guitar Hero.

Researchers used the popular video game, and the fake plastic guitars that come with it, to learn about sleep and complex motor learning. They found overall performance dramatically improved after a full nights sleep.

The findings will be dissected in an abstract presentation scheduled for later this morning.

Screenshot from one of the latest "Guitar Hero" games

A group of college students practiced one of two songs on the video game “Guitar Hero III: Legends of Rock” until they became moderately proficient. Then they had to take a 12 hour break.

Half the students started in the evening, slept, and returned the next morning. The other half practiced in the morning and came back later in the day.

The average initial note accuracy was 61 percent. When they returned, players in the wake condition improved to 63 percent. Those in the sleep condition fared better, with an average accuracy of 68 percent, a sizable improvement by “Guitar Hero” standards.

The study’s principal investigator says the results indicate a significant link between sleep and motor learning. He says he plans to use the popular video game in future research.

Images Courtesy Activision
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