Monday, October 15, 2012

Get Some Sleep First



By: Helen Kim

I think many students here will be interested in the results of a new study conducted at Lancaster University. Researchers have found that sleeping on a difficult problem is actually very helpful in finding its answer. 

Details of the study and the results were published just last week in Memory and Cognition. The study was conducted on 27 men and 34 women, who were separated into three groups. First, each group was given a set of simple and difficult verbal insight problems. Then, the groups had a second attempt at the problems they could not solve. One group attempted the problems immediately after the first attempt. Another group began its second attempt after spending a period of time sleeping. The third group began its second attempt following a period of time without sleeping.

The results of the study say the group that spent some time sleeping in between the two attempts solved more difficult problems than the other two groups. However, the results also showed that sleep did not affect the number of easy problems solved.

Professor Padraic Monaghan from Lancaster’s Department of Psychology (Centre for Research in Human Development and Learning) best summarizes the significance of these results: "We've known for years that sleep has a profound effect on our ability to be creative and find new solutions to problems. Our study shows that this sleep effect is greatest when the problems facing us are difficult. Sleep appears to help us solve problems by accessing information that is remote to the initial problem that may not be initially brought to mind. Sleep has been proposed to 'spread activation' to the solution that is initially distant from our first attempts at the problem. The advice stemming from this and related research is to leave a problem aside if you're stuck, and get some sleep if it's a really difficult problem.”

So to the sleep-deprived students here at Penn, the next time you have trouble with a problem set, consider getting some sleep in, and come back when you’re refreshed and ready!

Sources Referenced:
http://www.sciencedaily.com/releases/2012/10/121012074741.htm

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