You slept great last night!

I didn’t.  I woke up feeling really tired.  Perhaps if Sarah had not insisted we snuggle in the middle of the night.  Anyway, some really interesting research about the power of believing you slept well.  From the Atlantic’s Julie Beck:

Maybe if you were sweetly, blithely ignorant of your somnial failings, you’d feel more chipper and work more efficiently. In a recent study published in the Journal of Experimental Psychology, researchers from Colorado College tested the effects of being told you’re getting enough sleep—“placebo sleep,” as they call it…

Then one of the experimenters pretended to calculate that each participant got either 16.2 percent REM sleep or 28.7 percent REM sleep the previous evening. After getting their reading, participants took a test that measures “auditory attention and speed of processing, skills most affected by sleep deprivation,” according to the study.

A second experiment repeated these conditions, while controlling for experiment bias.

Results: Participants who were told they had above-average REM sleep performed better on the test, and those who were told their REM sleep was below average performed worse, even when researchers controlled for the subjects’ self-reported sleep quality.

Implications: A great victory was won here for lies, over truth. This study shows that if you’re in the mindset that you’re well-rested, your brain will perform better, regardless of the actual quality of your sleep. Conversely, constantly talking about how tired you are, as so often happens in our culture, might be detrimental to your performance.

Alright then, you did sleep great last night.  Now back to doing some productive work!

About Steve Greene
Professor of Political Science at NC State http://faculty.chass.ncsu.edu/shgreene

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