About 10 percent of the world's population is left-handed. Approximately 780 million people. This ratio of right-handers and left-handers exists, apparently, the entire history of mankind.
Research results
According to an analysis of 1008 articles that were published in prestigious scientific journals, 97% of study participants were right-handed, and only 3% were non-right-handed.
This analysis clearly shows that scientists prefer to choose more right-handed people for research. Moreover, this ratio is much less than in the general population.
This can be a problem, as it does not allow you to know about all the features of the human brain. In addition, people have differences in the structure and functioning of the brain.
Therefore, the inclusion of left-handers in neuroscience research is extremely important. This will allow us to appreciate the diversity of the human brain.
