UPDATE: THIS ENTRY HAS BEEN CROSS POSTED AT THE NEW BRANDSTORY BLOG WHERE I NOW WRITE. I'D BE HONORED IF YOU WOULD CLICK THROUGH AND ADD IT TO YOUR BOOKMARKS.
While I firmly believe that a logo can trigger an emotional response attached to a brand, this goes a little farther than I would have expected: According to this post in the Wall Street Journal Business Technology blog, researchers at Duke have found that exposure to a particular logo (in this case, Apple or IBM) can result in behavioral changes. People who were flashed the Apple logo for 30 milliseconds (too fast to be consciously seen) performed more creatively than those who saw the IBM logo.
You can read the study here.
This begs the question--will thinking about the Nike logo make you run faster? Will thinking of the Harvard University logo make you smarter? Will pondering the Weight Watchers logo help you lose weight? Sign me up as a test subject for all of the above.