Abstract
Intermanual Transfer of Learning (IMTL) is the ability to learn a certain skill in an easier way with one hand after that skill has been learnt by the opposite hand(1). This research aimed to investigate IMTL in a Fine Manual Dexterity (FMD) task in subjects presenting different Hand Preference (HP). The sample comprised 882 right and left-handers, both genders, aged 6 to 95 years old. The Dutch Handedness Questionnaire(2) was used to assess HP and the Purdue Pegboard Test(3) evaluated FMD. Direction and intensity of HP, Direction of Transfer (DT), gender, age and nationality were analyzed. IMTL changed according to DT and age, tending to be asymmetric, holding high values in the direction of Non-Preferred Hand (NPH) to Preferred Hand (PH). Children had got a higher IMTL rather than youngsters, adults and old adults with significant differences in adults.
Highlights
Intermanual Transfer of Learning (IMTL) is conceptualized as the ability that enables after practice of a hand in a certain task the easiness of learning of the same task by the untrained hand[4].Currently, this topic focuses on the quantity of transference between limbs, as learning is considered dependent on the performing hand, due to the learning process which takes place through a set of muscles, which does not happen, necessarily, with the contralateral limb muscle set[5]
We suggest that the experiences in the several daily tasks, which can differ in their specificity between subjects, overlap the intensity of their Hand Preference (HP)
Responding to the initial question, we may conclude that in this investigation IMTL was asymmetric in direction Non-Preferred Hand (NPH)-Preferred Hand (PH), that is, training with PH has benefited the acquisition with NPH
Summary
Intermanual Transfer of Learning (IMTL) is conceptualized as the ability that enables after practice of a hand in a certain task the easiness of learning of the same task by the untrained hand[4]. This topic focuses on the quantity of transference between limbs, as learning is considered dependent on the performing hand, due to the learning process which takes place through a set of muscles, which does not happen, necessarily, with the contralateral limb muscle set[5]. To be aware whether IMTL is symmetric or asymmetric upon a theoretical point of view, is to know the role played by the two brain hemispheres in the movement control in a certain task; a practical point of view provides guidelines that might help the design of practice improving performance in the acquisition or training of a certain motor skill[10]
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