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首页> 外文期刊>Brain and cognition >Time reproduction during high and low attentional tasks in Alzheimer's Disease 'A watched kettle never boils'
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Time reproduction during high and low attentional tasks in Alzheimer's Disease 'A watched kettle never boils'

机译：阿尔茨海默氏病高低注意力任务中的时间重现“守望的水壶永不沸腾”

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摘要

A wealth of empirical evidence suggests that directing attention to temporal processing increases perceived duration, whereas drawing attention away from it has the opposite effect. Our work investigates this phenomenon by comparing perceived duration during a high attentional and a low attentional task in Alzheimer's Disease (AD) patients since these participants tend to show attentional deficits. In the high attentional task, AD patients and older adults were asked to perform the interference condition of the Stroop test for 15 s while in the low attentional task, they had to fixate on a cross for the same length of time. In both conditions, participants were not aware they would be questioned about timing until the end of the task when they had to reproduce the duration of the previously-viewed stimulus. AD patients under-reproduced the duration of previously-exposed stimulus in the high attentional relative to the low attentional task, and the same pattern was observed in older adults. Due to their attentional deficits, AD patients might be overwhelmed by the demand of the high attentional task, leaving very few, if any, attentional resources for temporal processing.
机译：大量的经验证据表明，将注意力转移到时间过程上会增加感知的持续时间，而将注意力从时间过程中移开会产生相反的效果。我们的工作通过比较阿尔茨海默氏病（AD）患者在高注意力和低注意力任务中的感知持续时间来调查这种现象，因为这些参与者倾向于表现出注意力缺陷。在高注意力任务中，AD患者和老年人被要求执行Stroop测试的干扰条件15 s，而在低注意力任务中，他们必须固定在十字架上相同的时间。在这两种情况下，参与者都不知道要询问直到任务结束时的时机，因为他们必须重现以前查看的刺激的持续时间。相对于低注意力任务，AD患者在高注意力状态下重现了先前暴露的刺激持续时间，并且在老年人中观察到相同的模式。由于注意力不集中，AD患者可能对高注意力任务的需求不知所措，几乎没有（如果有的话）注意力资源用于时间处理。

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  • 来源
    《Brain and cognition》 |2014年第7期|1-5|共5页
  • 作者

    Mohamad El Haj; Diana Omigie; Christine Moroni;

  • 作者单位

    Laboratoire Epsylon, EA 4556, Universite Paul-Valery, Montpellier 111, France;

    Neuropsychology and Auditory Cognition, Department of Psychology, University of Lille 3, France,Centre de Neuroimagerie de Recherche (CENIR), Paris, France,Centre de Recherche de llnstitut du Cerveau et de la Moeelle tpiniere (ICM), UPMC - UMR 7225 CNRS - UMRS 975 INSERM, Paris, France;

    Neuropsychology and Auditory Cognition, Department of Psychology, University of Lille 3, France;

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  • 正文语种 eng
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  • 关键词

    Alzheimer's Disease; Attention; Perceived duration; Time perception; Time reproduction;

    机译：阿尔茨海默氏病;注意;感知持续时间;时间感知;时间再现;

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