This article can be filed into the "people aren't as rational as we thought" folder. I found out that it has been known for a while that right-handers associate "good" with the right half of their vision and "bad" with the left half and left-handers have the opposite association. When shown two options side by side, right-handers will more often choose the one on the right. The crazy part is that people will make up reasons why the one on the right is better to justify their decision. When the images are switched without the participant knowing, they will justify why the one now on the right is better.
The new research out of University of Pennsylvania contradicts the common belief that this favoring of the right side was hard-wired in the brain since birth. They showed that when the right hand of a right-handed person was temporarily handicapped with burdensome ski mittens, the participants fairly quickly developed a left-side bias. This shows that the brain is much more elastic than we thought. It also raises the question "if what was once thought to be a deep held belief can be reversed in a matter of minutes with a simple glove, what does that say about the rest of our supposedly deep held beliefs?"
http://www.sciencedaily.com/releases/2011/03/110310131006.htm
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