The belief that there is a relationship between talent and left hand rule has a long history. Leonardo da Vinci was the best. Mark Twain, Mozart and others.
Sometimes it happens to be true, but we are talking about a small group of favorable cases... so it depends, but the overall conclusion is that they are nothing more than the others
I use left hand to write but do other things with my right hand. Personally, I would say, it is a general believe that many of the left handed people have good hand writing but not all left handed people are smart. I am yet to come across any scientific validation on this proof.
There is no clear truth to the question of writing with the left hand. But scientists have long found the family's influence on the preference of the left hand among its members, that is, it lies in human genes inherited (DNA). This increases the likelihood of writing with the child's left hand, citing his parents or a member of his family.
Note: There are writing systems that are written from right to left and writings that are written from left to right: the latter include European writings based on Latin and Ancient Greek. There are also writings that are written from top to bottom, and so on. But if the right hand is the writing hand - this is the case for most people - then right-handed people have an advantage over the speed of writing when they write a script from left to right. For left-handers things run vice versa.
Handiness in childhood is a constantly explored field. When it comes to the question of special cognitive ability ("smartness"), the possibility of cerebral disorders should not be ignored. I found the following study of Heinz Krombholz very helpful for this thread:
An English translation of the summary of the article of Dr. Krombholz is:
Summary. In a longitudinal study, the development of handiness in kindergarten children (153 boys and 170 girls) and its relation to motor and cognitive performance were analysed. The handiness was determined on the basis of the relative dexterity of both hands. No change in the proportion of right-handed (84.8%), left-handed (9.8%) and ambidextrous (5.4%) persons was found during the study period; boys are more likely to be left-handed or ambidextrous than girls. The proportion of left-handed children with a higher risk of brain damage in firstborns is not higher than in laterborns. About 16 percent of the children, mainly left-handed and ambidextrous, but also right-handed, changed their hands during the study period. Left-handedness or ambidexterity are not associated with reduced cognitive or motor performance, but children who changed their hands during the study period achieved poorer fine motor and cognitive performance than children with constant handiness.
If a researcher, especially works in natural science, then are there two possibilities in the tradition of RG-asking: A general question like, which is interested in collecting several meanings to the subject, or to ask a research question in a field which knows hundreds of studies, so that two contributions should be fulfilled before asking the question: You should try to inform you about the level of research, and to give a precise hypothesis.
1 First to gain exact knowledge of studies, also the used methods of investigation. Did you? No, you named two men of very different areas, da Vinci and Mozart, without testing the large majority of artists in arts and music which arle right-handed. It should be your obligation before asking to prove this field and to ask if the number of opposite examples is much greater.
2 Second, some researchers who answered your question in order to help you have got from you the deferred argument: "Not only writings, in the game, say in Cricket they are doing excellent!"
3 Your kind of asking is not satisfiying but quite dissapointing for those who should like to help you! It does not correspond to the ethos of a scientist whose question was taken seriously, if the given answers are not mentioned or valuated but are absolutely made valueless as you claimed subsequently: "I have something completely different in common!" Then say such things at first in your question and in the commentary to your question, please.
4 You mentioned Cricket as example. Yes, but which research is known? This have you to clear - internet informs at first - bevor asking the question, cosidering all field-sports, like for instance also tennis. I don't know kricket, but the situation in tennis I know very well. Indeed are some things other if you play against a left-hand tennis player, and there is much known discusion, also available, very simple, by internet.
5 My proposal for you would be: To make a study to check whether cleaning women who hold the broomstick differently than right-handed cleaners do a better job. You only need to test a group of left-handed and right-handed cleaners by a simple statistical test to see if they belong to the same or different populations under the same cleaning conditions. But you may prefer qualitative research: Then you have to ask a larger number of cleaning institutes whether they prefer left-handers as cleaning staff. An exact question always is helpful in research!
Dear Professor you are very senior to me as like my teacher. Always I enjoy your answer which adds values to me and my questions and answers. In the above answer I put my observation only . Its not based on any statistical data or any form of sampling. It was not a rigorous method which are applied in the highly scientific research papers applying by the software analysis. Most of we are here, just a like a hang out about the research topics, questions answers and other discussions related research about our subject matters, daily life,society , fashion, ethics, ecology, environments, our works, profession, etc. Most of we are casual here. Not formal except the published research papers in the reputed international journals(like Wiley, Elsevier, Taylor & Franchis,etc). I am very shocked and surprise reading your answer here ! May be in some case I am wrong. I agree. But what is my fault to be angry with me?? The tone of your answer is very hot and some out-tracked !!! I think , this is the place for knowledge sharing with respects, code of conduct with ethical standard. Not a place for blind arguments. I have a wide and spacious mentality to learn from you all. Regards
The instance of cricket, as with South-Paws in boxing, is simply because it is awkward for a bowler to bowl to or a batsman to strike. Its unusualness creates an advantage.
But, Hein, I changed hands as a child 'just to see if I could', and, in my instance, it had no effect on my motor skills. For many actions I now use my left hand, as a consequence of training, not my right, which is my natural preferred hand.
Dear Colleague, sorry I was indeed a little annoyed, or better said: frustated because really I am interested in research questions. And other colleagues similar (I admit, it seems that many RG members perhaps are not so much) Therefore if you find some of my sentences inappropriately, then I hope you understand the reason of my reaction (and the possibly similar reaction of other users most are not professors but students - in the same situation willing to help). If there is given to your question a long answer including the request to discuss or at least to react, than I would lik to recommend to you first to comment this by giving your opinion. You are free, then - after your comment - to say that you have another Idea of the question.
Maybe that some RG users only "hang around" and ask questions out of boredom, but I had the good will not to include you in this group!). Because your question is interesting, and a lot of research is related to the question, psychomotoric questions, which are related to the function of the Broca Center, but in the individual application areas they contain different and complex aspects.
That's why I think it's good to let others know if you're asking a question just for general entertainment or if you're really interested, for example in sports. I myself have played tournament tennis and also know the history of this sport, it is a pleasure to talk about the games with or against left-hander (yes, there are some advantages if you don't take into account the handedness-problem in preparing your strategy) and we really have experts from sports science on RG, and on the Internet you can find a lot of preliminary information.
Questions about research should be thorough considered, I want to say that in all modesty. However, I do not know whether you are interested in serious research into the problem of handedness. Then it hardly makes sense to talk about anything in general that comes to mind as an association, but to go into individual areas of research. That's quite normal, and everything I notice here has nothing to do with the question of whether a professor is or not.
After all, I haven't been in the service for almost 15 years, I've been emeritus - and yet I'm interested in research, and I'm also interested in a younger generation also having a methodically trained interest in research questions. -
So it's all okay now; anyone as they like can continue to answer this question, but it was important for me to get rid of something, you understand now. Research always means that one is not satisfied with the current state of knowledge, one wants to extend the secured knowledge, e.g. about left-handedness, through research. One has to go into the existing research results. One should not "believe" any authorities, professors, but try to contradict them with good arguments. Please, try strictly apply this as a scientific method - and you will gain astonishing experiences and results.
Sometimes it happens to be true, but we are talking about a small group of favorable cases... so it depends, but the overall conclusion is that they are nothing more than the others
Can someone give us a scientifically proven results on this question of discussion. Would like to add scientific basis for our arguments and submissions.