Author: navin

More scientists doing interesting experiments:

In the first experiment, Li asked participants to act as “photo editors of a magazine” and choose among either appetite stimulating pictures of food or non-appetite stimulating pictures of nature. A control group was shown no pictures at all. All were then asked to participate in a lottery that would either pay them less money sooner or more money later.

Those who had been exposed to the photos of food were almost twenty percentage points more likely to choose the lottery with the chance of a smaller, more immediate payoff than those who were exposed to the photos of nature (61 percent vs. 41.5 percent) and eleven percentage points more likely to choose the short-term gain than those who had not been exposed to any stimulus (61 percent vs. 50 percent).

Similarly, another experiment used a cookie-scented candle to further gauge whether appetitive stimulus affects consumer behavior. Female study participants in a room with a hidden chocolate-chip cookie scented candle were much more likely to make an unplanned purchase of a new sweater — even when told they were on a tight budget — than those randomly assigned to a room with a hidden unscented candle (67 percent vs. 17 percent).

See full article (via boingboing).

I hate exercise. So do you. But wouldn’t it be nice if you could get all the benefits of exercise by just thinking about exercise? Thankfully, that’s exactly the kind of thing that our scientists are working on:

In this study, she decided to look at whether our perception of how much exercise we are getting has any effect on how our bodies actually look. To do this, she studied hotel maids.

As any casual observer of the hospitality industry knows, hotel maids spend the majority of their days lugging heavy equipment around endless hallways. Basically, almost every moment of their working lives is spent engaged in some kind of physical activity.

Well, turns out that the maids don’t really think of their jobs are exercise. That is not good.

Despite the fact all of the women in her study far exceeded the U.S. surgeon general’s recommendation for daily exercise, the bodies of the women did not seem to benefit from their activity.

Langer and her team measured the maids’ body fat, waist-to-hip ratio, blood pressure, weight and body mass index. They found that all of these indicators matched the maids’ perceived amount of exercise, rather than their actual amount of exercise.

If you have been paying attention, you’ll notice that this is opposite of what we really wanted at the top of this page. Let’s see if something can be done about that.

So Langer set about changing perceptions.

She divided 84 maids into two groups. With one group, researchers carefully went through each of the tasks they did each day, explaining how many calories those tasks burned. They were informed that the activity already met the surgeon general’s definition of an active lifestyle.

The other group was given no information at all.

One month later, Langer and her team returned to take physical measurements of the women and were surprised by what they found. In the group that had been educated, there was a decrease in their systolic blood pressure, weight, and waist-to-hip ratio — and a 10 percent drop in blood pressure.

One possible explanation is that the process of learning about the amount of exercise they were already getting somehow changed the maids’ behavior. But Langer says that her team surveyed both the women and their managers and found no indication that the maids had altered their routines in any way. She believes that the change can be explained only by the change in the women’s mindset.

Essentially, what Langer is talking about is a placebo effect. She says that if you believe you are exercising, your body may respond as if it is.

Yippie! Read the full article while I go off and imagine that I am running the marathon.