Apparently the Xbox Kinect is a retail success despite the fact that I haven’t personally bought one. Enough people seem to enjoy flailing their extremities about and barking simple commands that Microsoft has sold 1.5 hoojillion of the devices and the holiday shopping season has only just begun. I’ve written before about how motion controls can create more immersion in players by engaging our sense of body location, but there might also be another vector in play. Over on his blog, author Jonah Lehrer has some interesting thoughts about how buttons free controllers like the Kinect affect our emotional reaction to games given that physiological and mental states present psychologists with a bit of a “chicken or the egg” problem:
Let’s say we are playing a shooter on the Kinect. Unlike other game consoles, which leave us stranded on the couch, this console (like the Wii before it) actually makes us move. If we want to kill off the bad guys, we need to run around and break a sweat. We are no longer just twiddling our thumbs.
In order to prepare for all this combat, the brain automatically triggers a wave of changes in our “physical viscera,” such as quickening the pulse, flooding the bloodstream with adrenaline, and contracting our intestines. While even stationary entertainment can lead to corporeal changes – that’s why the heart rate quickens when watching a Hitchcock movie – the physical activity of the Kinect exaggerates these effects. Although we might look a little foolish flailing around the living room, the game has managed to excite our flesh, and that means our emotions aren’t far behind. As a result, we are more scared by the possibility of virtual death (and more thrilled by the virtual victory) because our body is fully engaged with the game.
Lehrer argues that high definition graphics and surround sound offer diminishing returns, so kinetic movement is the next big win for game designers wishing to engage us in their game. This is hardly an unprecedented idea. In his book, The Science of Happiness Stefan Klein 1 notes that “As [neuroscientist Antonio Damasio] reminds us, our mind is, in the true sense of the word, embodied, not ’embrained.’ A disembodied being would feel neither happiness nor sadness.” 2
In 1993, researchers Paul Ekman and Richard Davidson even studied this question scientifically by testing to see if simply smiling can make you happy. 3 All of us can fake a smile of one sort or another even when we’re pissed or bored, but it turns out that “true” smiles –those that erupt whenever we’re genuinely happy– involve a specific muscle: the obicularis oculi. This is the muscle around the eyes that causes us to make that particular, gleeful face during moments of unmitigated merriment. Some people can fake using the obicularis oculi to make apparently genuine smiles 4 and Ekman and Richardson screened potential subjects for their study based on this criteria and then trained them further on how to do it at will. After taking some baseline measures, the researchers found out that faking a “real” smile led not only to higher self-reports of good moods, but brain activity as measured by EEG 5 during fake smiles was practically identical to activity measured during genuine amusement.
But it’s important to note that the subjects had to smile the “right” way. Those who didn’t manipulate the obicularis oculi and related muscles didn’t become happier; they just looked a little bit like it. If the Kinect and other motion control game devices are going to trick our bodies into making us feel more engaged or emotional, they’ve got to do it convincingly and really mimic those genuine physiological reactions. They also need to either put out some games that will entice us to play, or offer us $5 and 10 extra credit points for our Psychology 101 class.
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