Researchers hypothesize that this is partially because most of what we call multitasking doesn't actually involve doing multiple things simultaneously—it involves rapidly switching between activities, a process that saps time and energy by requiring us to constantly refocus our attention. "When a conscious decision has to be made, our brains can generally do only one thing at a time," explains Steven Yantis, PhD, professor of psychological and brain sciences at Johns Hopkins University.

That's where the trouble started. To milk the goats, we had to get them onto a long, raised platform, which was built with feeding troughs on one side so the goats could eat while being milked. The animals were usually happy to cooperate, given that food was involved. So I didn't understand why one particular morning, rather than proceeding to their usual places on the platform, the first five goats began walking in a tight circle, bleating frantically. With their udders swinging and their hooves slipping on the wooden floor, they prodded each other with their horns, becoming more and more distressed. One small black goat, known for her independent streak, thrust her head under the platform's railing, trying to escape. The others bleated angrily. The milking tubes sucked air. Panicked, I gestured toward the feeding troughs—"Remember those? Where you have eaten breakfast and dinner every day of your lives?" But the goats were in full-scale meltdown.

It was a moment that called for quick, creative thinking—exactly the type that multitasking has the power to impede. As researchers from the University of California, Los Angeles have found, when we learn something while multitasking, we use an area of the brain called the striatum, which is activated when we learn new habits or skills—as opposed to the hippocampus, which is associated with forming conscious memories and is active when we're focused. The problem with habit-based learning is that it tends to be inflexible; you're fine if everything goes the way you expect it to, but if a few unhappy goats throw off your routine, you'll have difficulty conjuring the knowledge needed to come up with an alternate plan.

Which was my problem exactly. But as I stood there racking my striatum, Peter did something unexpected: He leaped over to the pen where the other goats were impatiently waiting and started to let in more, including an angora named Princess. Ignoring the chaos around her, Princess walked calmly to the front of the line. And the other goats, immediately forgetting that they had ever not recognized a feeding trough, took their places behind her. Peter, it turned out, had been paying attention that first day on the farm and was now able to remember a crucial fact: Certain goats were leaders and others, followers. Our mistake was that we'd let in the wrong ones.

After that, my farm attitude changed. I began paying attention to the details of the milking, which made the process more enjoyable and lessened the likelihood that something else would go wrong. The goats, I'm proud to say, never rebelled again. And I settled into the satisfaction that comes from doing just one thing well. Peter and I even came up with goat-related adages to fit our new lives. One of our favorites was "Ain't no doin' while a goat's a milkin'"—inspired by the fact that when you're milking goats, you really can't do anything but milk goats.

Of course, now that I'm off the farm and back at my computer, it's tough not to revert to my old ways. With so much information and so many distractions available at all times, the challenge is not to find stimulation but to say no to it, to take control of my attention and cultivate a different kind of richness in my life—one that comes from depth instead of breadth.

I'm practicing concentrating on one thing at a time—an e-mail message, a newspaper article, my work. I'm finding that I can accomplish things faster this way; more important, I feel calm. And when I start to reach for the phone while I'm making dinner, or check my e-mail while talking with a friend, I remind myself of one of life's enduring lessons: "Stick to the goat at hand."

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    Catherine Price is a freelance journalist and author of 101 Places Not to See Before You Die (Harper Paperbacks).

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