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Help left-handers get it right

Help left-handers get it right

Around 10 per cent of the population is left-handed. Left-handedness is not considered to be a special educational need in itself, but it is widely accepted that left-handed children may need extra support You can help them to adapt to a right-handed environment by familiarising yourself with some of the potential pitfalls for left-handers. There is also a wealth of resources and equipment available to help left-handed children, their teachers and their parents. If you don’t know what it feels…

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Handedness develops in the womb

Handedness develops in the womb

Handedness develops in the womb 10:58 22 July 2004 Exclusive from New Scientist Print Edition Laura Spinney, Lisbon The hand you favour as a 10-week-old fetus is the hand you will favour for the rest of your life, suggests a new study. The finding comes as a surprise because it had been thought that lifelong hand preferences did not develop until a child was three or four years old. A team led by Peter Hepper of the Fetal Behaviour Research…

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Gene for left-handedness is found

Gene for left-handedness is found

Scientists have discovered the first gene which appears to increase the odds of being left-handed.   The Oxford University-led team believe carrying the gene may also slightly raise the risk of developing psychotic mental illness such as schizophrenia.   The gene, LRRTM1, appears to play a key role in controlling which parts of the brain take control of specific functions, such as speech and emotion. The study appears in the journal Molecular Psychiatry. The brain is set up in an…

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Creation of the Sinister: Biological Contributions to Left-handedness

Creation of the Sinister: Biological Contributions to Left-handedness

by Monica Watkins We live in a right-handed world. Left-handedness has been, and in some cases still is, considered an inconvenience, a bad habit, or a symbol of the “sinister”. Studies still attempt to link left-handers with socially undesirable behaviors, such as psychosis or criminal activity. The social implications of these stigmas are immense. “Left-handers may be one of the last unorganized minorities in our society, with no collective power and no real sense of common identity,” says Stanley Coren…

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Breast cancer more likely in left-handers

Breast cancer more likely in left-handers

By Duncan Gardham (Filed: 26/09/2005) Women who are left-handed are more than twice as likely to contract breast cancer before the menopause as right-handed women, research has found. Scientists believe the cause may lie in the exposure to high levels of sex hormones before birth which can induce left-handedness as well as changes in breast tissue. Epidemiologists in the Netherlands looked at more than 12,000 healthy middle-aged women as part of their research, published in the British Medical Journal today….

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Biology determines handedness in chimps, study finds

Biology determines handedness in chimps, study finds

What makes a chimpanzee left-handed–nature or environmental influences? Mostly nature, according to a recent study of chimp mothers and infants. That result refutes past animal research, which suggested that behavioral reinforcement and other external factors largely determine animals’ hand–or paw–preferences. In contrast, this study from Emory University’s Yerkes Regional Primate Research Center found that a chimp’s preference for right or left stems mainly from birth order and genes. To reach that conclusion, researchers Bill Hopkins, PhD, and Jeremy Dahl, PhD,…

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A guide to left-handed computing

A guide to left-handed computing

Lefties can feel disadvantaged in the world of computing, but we’ve got some tips and tweaks to help them get ahead Leo Waldock, Computeractive 12 Apr 2005 There are eight chances in nine that you are right-handed, and if you are, you will probably never have considered the problems faced by the one in nine of computer users who are left-handed. So imagine that the vast majority of products you use with your computer, from the mouse and keyboard to…

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