Sunday, July 06, 2014

Hand foot eye co-ordination

Most people are right-handed, the side of the body controlled by the left side of the cerebral hemisphere. The same side of the brain usually contains the language centre. Preference for one hand or foot over the other, known as laterality, has been studied in humans chiefly as it relates to language development. Researchers have found a fairly strong link between hand preference and foot preference. Hand and foot preference is usually fairly easy to observe. Eye preference is more ambiguous. To determine eye preference, a simple measure called the Miles test is used. Subjects are asked to focus with both eyes on an object framed by the fingers of both hands, held at arm’s length. If the left eye is then closed and the object remains visible, the subject is right-eyed. A recent study , reported in The International Journal of Pharmaceutical and Biomedical Research, found no significant relationship between dominant eye and dominant hand. An 1983 study published in The International Journal of Neuroscience, involving 7,364 children, found that only about 40 percent showed consistent lateral preferences of hand, eye and foot; about 37 percent favored the right side and about 3 percent the left. As for the other 60 percent, they showed 10 different preference patterns.

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