The effects of aging and Alzheimers disease on the attencional modulation of time perception. / Modulação atencional da percepção de tempo e suas relações com o envelhecimento e a doença de Alzheimer.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

Our work focused on the attentional modulation of the perception of time. Additionally, other objective was to study the effect of aging and Alzheimers disease (DA) on temporal perception. We have performed four experiments. The first and the second experiments evaluated time perception in young volunteers, by means of the reproduction and discrimination of time intervals, respectively. The results showed an effect of attention on short durations, confirmed by d. The third and fourth experiments had the objective to compare time perception among young volunteers, elderly and DA patients, utilizing reproduction and discrimination of time intervals, respectively. Our findings showed a worse performance in both elderly volunteers and patients with DA in comparison with the group of young volunteers. Our conclusion is that time perception deficits in elderly and patients with DA are associated either to lesser attentional resources or to an increased difficulty in focusing attention on the target, which is more evident in patients suffering of DA.

ASSUNTO(S)

reprodução de tempo attention alzheimers disease aging doença de alzheimer reproduction of time atenção envelhecimento discriminação de tempo percepção de tempo time perception discrimination of time

ACESSO AO ARTIGO

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