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Metaphysics & Psychology

Your Thoughts Can Release Abilities beyond Normal Limits

Your Thoughts Can Release Abilities beyond Normal Limits 1

There seems to be a simple way to instantly increase a person’s level of general knowledge. Psychologists Ulrich Weger and Stephen Loughnan recently asked two groups of people to answer questions. People in one group were told that before each question, the answer would be briefly flashed on their screens — too quickly to consciously perceive, but slow enough for their unconscious to take it in. The other group was told that the flashes simply signaled the next question. In fact, for both groups, a random string of letters, not the answers, was flashed. But, remarkably, the people who thought the answers were flashed did better on the test. Expecting to know the answers made people more likely to get the answers right.

Our cognitive and physical abilities are in general limited, but our conceptions of the nature and extent of those limits may need revising. In many cases, thinking that we are limited is itself a limiting factor. There is accumulating evidence that suggests that our thoughts are often capable of extending our cognitive and physical limits.

Can our thoughts improve our vision? We tend to believe that an essentially mechanical process determines how well we see. Recent research by Ellen Langer and colleagues suggests otherwise. It is a common belief that fighter pilots have very good vision. The researchers put people in the mindset of an Air Force pilot by bringing them into a flight simulator. The simulator consisted of an actual cockpit including flight instruments. The cockpit was mounted on hydraulic lifts that mimic aircraft movement and performance. People were given green army fatigues; they sat in the pilot’s seat, and performed simple flight maneuvers. They took a vision test while “flying” the simulator. A control group took the same vision test in the cockpit while the simulator was inactive. People’s vision improved only if they were in the working simulator.

To rule out the possible effect of motivation, the researchers brought another group of people into the cockpit and asked them to read a brief essay on motivation. After people finished reading, they were strongly urged to be as motivated as possible and try hard to perform well in the vision test. The test was conducted while the simulator was inactive. They did not show a significant improvement.

In an eye exam, we are used to start experiencing problems at the bottom third of the eye chart, where letters start to get small. In another experiment, Ellen Langer and colleagues showed people a shifted chart. At the top, it included letters equivalent to the medium-size letters on the normal eye chart and the chart progressed to letters of very small size at the bottom. Because people were expecting to read the top two thirds of the shifted chart as well, they were able to read much smaller letters.

We also tend to think that our bodies respond to physical exercise in a mechanical way. We count our calorie intake, the calories we lose on a treadmill, etc. However, merely changing our thoughts about our physical activity seems capable of changing our bodies. Hotel room attendants clean on average 15 rooms per day, each room taking between 20 and 30 minutes to complete. (The physical activity involved meets the Surgeon General’s recommendation of at least 30 minutes of physical exercise per day for a healthy lifestyle.) However, most hotel room attendants believe that they do not get regular exercise; and a lot of them believe that they do not get any exercise at all. Alia Crum and Ellen Langer told hotel room attendants that their work provided the recommended exercise for a healthy lifestyle. This treatment group was monitored for 4 weeks. A control group of hotel room attendants, who were not told that their work provided the recommended exercise, was similarly monitored. People in the treatment group lost weight; their body fat percentages, waist-to-hip ratios, and systolic blood pressures dropped. People in the control group showed no such improvement. These changes occurred despite the fact that the hotel room attendants’ amount of work, amount of exercise outside of work, and diets stayed the same.

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