3 Answers

  1. As far as I know, there was a rule in Soviet schools that you can't write left-handed, and all students were retrained to write right-handed. Our brain consists of two hemispheres: the right hemisphere controls the left side of the body, and the left hemisphere controls the right side. These hemispheres are unequal, one of them is the main one. If the left hemisphere is more active, the person becomes right – handed, if the dominant right hemisphere is left-handed.

    The left hemisphere is responsible for speech, reading, writing, logical and analytical thinking. In right-handed people, it is dominant. The left hemisphere in right-handed people controls the right arm and leg. Right – with the left hand and foot. For left-handers, the opposite is true. While in right-handed people, when writing, as well as most other conscious volitional actions, nerve impulses come to the leading hand directly from the left hemisphere, in left – handed people these signals must pass through the bridge between the hemispheres-the so-called corpus callosum. Hence speech delays and difficulties with writing, which are more often diagnosed in left-handers. To compensate for this deficiency, left-handers develop speech centers in the right hemisphere. And this ultimately turns out to be an advantage: left-handers get direct verbal access to figurative information, which is used specifically by the right hemisphere. Maybe that's why they get the jokes better. You can develop the second hand, but you can't completely retrain from right-handed to left-handed. Your working hand (right) will always remain dominant. And the problems and difficulties for the brain will be completely retrained.

  2. I was re-taught at school to write from my left hand to my right. I write with my right hand, I also used to write with my left, but now I've forgotten how to do it, I don't even try to try it

  3. A person who has lost the” leading ” hand willy-nilly learns not only to act with the other, but also to perform with one hand actions that other people perform only with two. For example, chop onions.

    So anyone can retrain if they really need to. Armless people learn to write or draw with their feet when they really need it. What can we say about the hands…

    The movement of the right hand is controlled by the left hemisphere of the brain, the left – by the right. The result of retraining will be an increase in the number of connections between neurons in the corresponding areas of the “responsible” hemisphere. Not using (or underutilizing) the other hand can lead to a complete or partial loss of relevant skills and a reduction in the number of connections in “her” hemisphere.

Leave a Reply