Aprendizado motor em crianças e adultos normais: semelhanças e diferenças / Motor learning in children and adults: what is similar? What is different?

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The learning process is the base of the human behavior motor. By means of its abilities are acquired and improved by the training, allowing a better interaction with the half. In brain lesion cases this even becomes important, since many functions are conceded and should be relearned inside a new context. Being this way, studies on the learning can contribute a lot for the practice practises, allowing the rehabilitation programs refinement. In spite of the great interest in this area, little still knows about that process, especially during the development, in which structural and functional differences (especially related the cognitive functions) are found. Considering the learning as the result of modifications in the connections between different cerebral structures, and for these reach the maturity just in the life Monday decade, is plausible to suppose that there are differences in this process between adults and children. Being this way, the goal of this study was to investigate there are differences in the process of motive learning between children of 9 and 10 years and adult, and this way, identify possible sensory aspects, motors and cognitive that would be contributing for these possible differences.To reach such goal was compared the performance, by speed, come in 20 children with age between 9 and 10 years (9.6+0.50) and 20 young adults (26.7+3.77) in a fingers opposition task. It was considered the capacity of accomplishing actions regardless of the order and of executing them in a specific sequence, trained by means of 4 blocks of 600 movements, performed in an unique session. Each group was divided into two training terms: With and without vision, in order to evaluate the how much visual information influence in the process. They were performed evaluations before and after the training, besides weekly revaluations up to 28 days after the training. Still compared the performance between trained sequence and a sequence control, to 8 verify there would be learning generalization. The analyzed results, by means of ANOVA for repeated measures, demonstrated that both groups they benefited of the training, with performance improvement for trained sequence that was kept up to 28 days after the training, evidencing task learning consolidation. However, it verified that the training effect on the ability to speed up of opposition of independent fingers of an order specifies is the same between adults and children, in contrast with the training effect on the ability to speed up of the fingers opposition actions inside an order pre-established, where children they present significantly prejudiced in comparison to adults, particularly the ones that trained without vision. These differences could be explained by deficiencies in the action internal models formation more than in the task execution capacity. This hypothesis could be confirmed by the differences found in the learning generalization capacity, where children presented prejudice regarding the adults. This way, the differences in the learning process between adults and children found in the current study can be explained by differences in the capacity of movement internal models construction and consolidation, process in which the cognition exercises fundamental role. In the clinical practice, especially with children, this would carry to a task cognitive aspects larger valorization, more of the purely the training motor accomplishment.

ASSUNTO(S)

childhood development children desenvolvimento infantil motor learning cognition aprendizagem motora cognição crianças

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