Privação sensorial precoce durante o neuro-desenvolvimento e suas consequências cognitivas
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Resumo
O aparecimento progressivo de habilidades sensoriais, motoras e cognitivo-afetivas no humano ao longo do seu desenvolvimento é um reflexo de mudanças fisiológicas que se gestam no interior do sistema nervoso. Ditas mudanças fazem parte de processos dinâmicos e dependem, depois do nascimento, da atividade elétrica induzida pela experiência. Considerando o anterior, o sistema nervoso em desenvolvimento constitui uma espécie de “protomapa”, sobre o que a experiência molda características moleculares, neuroquímicas e de conectividade, que se refletem nas atividades emergentes do sistema. A evidência que suporta a importância que a influência experiencial tem sobre o desenvolvimento do sistema nervoso vem em aumento. Esta revisão reúne informação sobre estudos em modelos biológicos e em humanos submetidos a privação sensorial e ambiental. Se enfatiza na caracterização das características cognitivas e sociais.
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Referências
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