Laterality
Laterality
Laterality (/lætəˈrælɪti/) refers to the preference most humans and animals show for one side of their body over the other. It is a broad term, encompassing several concepts related to the asymmetry observed in the bodies and behaviors of organisms.
Etymology
The term "laterality" is derived from the Latin word "latus" which means "side".
Related Terms
Description
Laterality is not limited to the preference for one hand or foot over the other, but also includes a preference for using one eye or ear over the other, and even a preference for actions of the brain, as in lateralization of brain function.
The most obvious manifestation of laterality is handedness, which is the tendency to use one hand over the other for tasks such as writing and throwing. Footedness is the preference of one foot over the other for tasks such as kicking or stepping on a pedal. Eye dominance refers to the tendency to prefer visual input from one eye over the other. Ear dominance is the preference for auditory input from one ear over the other.
Factors Influencing Laterality
Laterality is believed to be influenced by a combination of genetic, environmental, and cultural factors. The exact mechanisms through which these factors interact to determine an individual's laterality are still a subject of ongoing research.
See Also
References
External links
- Medical encyclopedia article on Laterality
- Wikipedia's article - Laterality
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