Determining whether a child is left or right handed can be a challenge. Children will experiment with both sides before they settle on being left, right or mixed dominant. In fact, even though you may see signs of hand dominance in a child at a very young age, most experts…
Tag: left-handedness
Discoveries about the world's 708 million left-handers.While the reasons for left-handedness still largely remain a scientific mystery, neuroscientists work hard to understand this fascinating phenomenon.Here are some recent scientific findings about left-handedness you might not have heard of, yet. 1. There are approximately 708 million left-handers in the world.In a…
Scientists have identified the genes linked to left-handedness By Emily Dixon, CNN (CNN) For the first time, scientists have identified the genetic differences associated with left-handedness, a trait found in 10% of the human population. What's more, those genetic variants result in differences in brain structure, which might mean that…
By Fritz Lenneman Eleven percent of the population is born left-handed, and if they seem different, it's because they are! Learn six tips for raising a left-handed child. Step 1: Is she a lefty? Congratulate—or blame—yourself.The question of whether left-handedness could be inherited was answered in 2007 when scientist Clyde…
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…
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…