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The other hand, comparatively often the weaker, less dextrous or simply less subjectively preferred, is called the non-dominant hand. [ 2 ] [ 3 ] [ 4 ] In a study from 1975 on 7,688 children in US grades 1–6, left handers comprised 9.6% of the sample, with 10.5% of male children and 8.7% of female children being left-handed.
Left-handers who were forced during childhood to use their right hand showed a larger surface area of the central sulcus in their left hemisphere, which is associated with right-handedness. Also, structures in the basal ganglia such as the putamen also mirrored developmental right-hand dominant individuals in the forced group. [8]
Cross-dominance, also known as mixed-handedness, hand confusion, or mixed dominance, is a motor skill manifestation in which a person favors one hand for some tasks and the other hand for others, or a hand and the contralateral leg. For example, a cross-dominant person might write with the left hand and do everything else with the right one, or ...
Left-hand people have to grab drinks with their right hand. Felix Kästle/picture alliance via Getty Images Grabbing a piping hot coffee with your non-dominant hand can be a recipe for spillage.
Articles relating to handedness, an individual's preferential use of one hand, known as the dominant hand, due to it being stronger, faster or more dextrous.The other hand, comparatively often the weaker, less dextrous or simply less subjectively preferred, is called the non-dominant hand.
The Edinburgh Handedness Inventory is a measurement scale used to assess the dominance of a person's right or left hand in everyday activities, sometimes referred to as laterality. The inventory can be used by an observer assessing the person, or by a person self-reporting hand use.
While human beings are more right-handed as animals, it is supposed that left-handedness could be latent. Experiments support Luria's proposition that a left-top preference in Arm Folding points to "latent" left-handedness, but only if associated with a right-top preference in hand clasping. [13]
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