In studies of the human brain, scientists ignored left-handed because their brains work differently

It so happened that for centuries the history of Western civilization, people using the left hand as the main, thought someone out of the ordinary, and even considered left-handedness tricks of the devil: for example, teachers are often forced children to be retrained and write with his right hand, "like everybody else". Now society has become loyal attitude to the left-handers, but the problems are still there.

As the «Wall Street Journal» professor of psychology at Northwestern University (Illinois) Robin Naslok, many studies and experiments related to the work of the brain, deliberately not allowed to participate left-handed people, because their brain functions differently than right-handers .

The researchers believe that the presence of left-handers among the volunteers may affect the accuracy of the results, and believes that the Group, consisting only of right-handers, give an objective view of the majority of people. But this means that the data obtained in the course of these experiments can not be applied to a significant portion of the world's population.

Stories known such a precedent: American scientists prefer not to use in studies of female volunteers, while the president of the United States Bill Clinton, did not sign a special act, which requires mandatory participation of women in the experiments and clinical trials.

Perhaps in the near future will be amendments to the legislation to ensure the presence of volunteers in groups of people for whom the left hand - the basic, and there, according to statistics, there are about 10%.

via factroom.ru