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Owing to cultural and social pressures, many left-handed children were forced to write and perform other activities with their right hands. This conversion can cause multiple problems in the developing left-handed child, including learning disorders, dyslexia, [12] stuttering [13] [14] [15] and other speech disorders. [16]
Handedness displays a complex inheritance pattern. For example, if both parents of a child are left-handed, there is a 26% chance of that child being left-handed. [23] A large study of twins from 25,732 families by Medland et al. (2006) indicates that the heritability of handedness is roughly 24%. [24]
While these genetic variants account for only a tiny fraction - perhaps 0.1% - of left-handedness, the researchers said the study shows that this gene, called TUBB4B, may play a role in the ...
A study done by the Department of Neurology at Keele University, North Staffordshire Royal Infirmary suggests that forced dextrality may be part of the reason that the percentage of left-handed people decreases with the higher age groups, both because the effects of pressures toward right-handedness are cumulative over time (hence increasing ...
There has been a fair amount of research that associates left-handedness with the likelihood of psychotic disorders like schizophrenia.
A Pre-K teacher in Oklahoma is in hot water after a mother says the teacher forced her son to write with his right hand, despite the child being left-handed, according to KFOR. Alisha Sands said ...
Older Women Have More Left-Handed Babies. According to one Canadian study, women in their 30s and 40s were far more likely to have left-handed children than younger women. A study of 2,228 college ...
Michael Clarke is naturally a left handed person who bowls left handed but bats right handed. Akshay Karnewar is an ambidextrous bowler. Originally, he only bowled with his right hand, but since he does everything else with his left hand, he was taught to bowl left-handed as well but needs to signal to the umpire when he switches hands when ...