One of the most amusing aspects of watching marshmallow test videos is the things kids do to occupy themselves instead of eating. "Once you're focusing on that - rather than the long-term issues of cholesterol and obesity - it's incredibly hard to stop." Distract yourself " This is the reason why, even if you have resolutions about how many potato chips you're going to eat, once you open the bag, it's so hard to not empty it. If you're trying to quit smoking, surrounding yourself with smokers will inevitably drain your willpower and make you more likely to have a cigarette. There are all sorts of lessons for adults here, Mischel writes. And various experiments have shown that exposure to the sight, smell, or taste of a temptation activate the sort of short-term "hot" thinking that make us most likely to give in to it. These categories may oversimplify - in terms of the underlying brain structures - but they're still a helpful way of understanding our response to different sorts of stimuli. In the book, Mischel likens the impulse-driven limbic system to "hot" thinking, and the slower, more rationally-driven executive function to "cool" thinking. " Then other parts of the brain, concentrated in the prefrontal cortex, allow us to do things like control our attention, and think about the future, and delay gratification." Neuroscientists often call this the brain's executive function. " There's the limbic system - the lower, more primitive brain, which responds immediately and emotionally, and allowed us as a species to survive a predator-filled environment in ancient times," Mischel says. The reason, Mischel and other psychologists argue, is that the battle between instant gratification (one marshmallow now) and long-term prudence (two marshmallows later) is really a battle between two different systems of the brain. And o ther experiments found that if the marshmallow was covered by by a screen and the kids couldn't see it, they waited ten times longer, on average, before ringing the bell. Kids who turned away from the marshmallow or pushed it farther away, on the other hand, were more successful. In other words, picking up and sniffing the marshmallow, or pretending to eat it, is not a strategy for staving off the temptation - it's a recipe for giving in imminently. Watch a video of children taking the marshmallow test today and one thing becomes obvious: the more exposure to the marshmallow they let themselves have, the more likely they are to eat it. Mischel recently spoke with me about these strategies. He argues that the same strategies a five-year-old uses to avoid eating the marshmallow can help you quit smoking, or stick to a diet, or save for retirement. What's more, he says, these experiments provide concrete lessons about self-control we can use as adults. "The most important thing we learned is that self-control - and the ability to regulate one's own emotions - involves a set of skills that can be taught, and learned," Mischel says. But Mischel, out with a new book - The Marshmallow Test: Mastering Self-Control - says the real lesson of these experiments is the exact opposite. Many people have interpreted this to mean that our fate in life is predetermined. Waiting for two marshmallows turned out to be really, really important. These experiments generated all sorts of interesting findings, but they became famous because of something remarkable that happened years later: on average, the kids who could wait longer for another marshmallow were found to have higher SAT scores and got along better with others, used drugs at lower rates as young adults, and even had lower body mass indexes 30 years later at the outset of middle age. Alternately, if they couldn't resist, they could ring a bell and an adult would return, allowing them to have just one (some, of course, just ate the marshmallow instead of ringing the bell). If they could refrain from eating any until an adult returned, they were told, they could have two. One at a time, each child was seated in front of a plate with one marshmallow (or another treat of their choice). Mischel and his colleagues, conducting research at a nursery school on Stanford's campus, wanted to explore the nature of self-control. Nearly 50 years ago, psychologist Walter Mischel sat five-year-old children down at a table and gave them a simple choice: they could eat one marshmallow now, or two marshmallows later.
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