Mawdsley Matthew, Grasby Katrina, Talk Andrew
Discipline of Psychology, University of New England, Armidale, NSW, Australia.
J Sleep Res. 2014 Oct;23(5):538-44. doi: 10.1111/jsr.12149. Epub 2014 Mar 28.
We studied the effect of sleep versus wakefulness on item recognition and source memory recollection in a sample of shift-workers and permanent day-workers. Recognition of words that were previously viewed arrayed in quadrants of a page, and recollection of the original source location of the words on the page were assessed after a 12-h retention interval that was filled with wakefulness incorporating the subjects' work-shift, or an equal period that included sleep. Both shift-workers and permanent day-workers had poorer item recognition and source memory recollection when the retention interval was spent awake rather than including sleep. Shift-workers expressed larger deficits in performance than day-workers after wakefulness. This effect was not mediated by whether the shift-workers were on a day- or night-shift at the time of the study. These results indicate that sleep is an important contributor to successful item recognition and source recollection, and that mnemonic processing in shift-workers may be especially sensitive across their work-shift.
我们在一组轮班工作者和长期日班工作者样本中，研究了睡眠与清醒对项目识别和源记忆回忆的影响。在经过12小时的保持间隔后，评估对先前在页面象限中排列呈现的单词的识别，以及对页面上单词原始源位置的回忆。该保持间隔期间要么是包含受试者工作班次的清醒状态，要么是包含睡眠的相等时长。当保持间隔期间处于清醒而非包含睡眠时，轮班工作者和长期日班工作者的项目识别和源记忆回忆都较差。在清醒后，轮班工作者表现出比日班工作者更大的缺陷。这种效应不受研究时轮班工作者是上日班还是夜班的影响。这些结果表明，睡眠是成功进行项目识别和源记忆回忆的重要因素，并且轮班工作者的记忆加工在其整个工作班次期间可能特别敏感。
