Effect of the time-of-day of training on explicit memory
Effect of the time-of-day of training on explicit memory
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DOI：
10.1590/s0100-879x2008005000023
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发表时间：
2008-06-01
影响因子：
2.3
通讯作者：
Albuquerque, F.S.
中科院分区：
文献类型：
--
作者：
Barbosa, F.F.;Albuquerque, F.S.
研究表明，训练对长期外显记忆的影响在下午比在早上表现出更大的影响。然而，这些研究并没有控制时间型变量。因此，本研究的目的是评估如果控制这个变量，除了确定可能的同步效应的发生外，是否会继续对外显记忆的时间效应。共有68名本科生被归类为上午，中间，或下午类型。在训练阶段，受试者听了10个单词的列表，并立即执行识别任务，他们重复了两次。一周后，他们接受了一次未经宣布的识别测试。目标列表和干扰词在所有系列中是相同的。根据采集时间将受试者分为两组：上午组（N = 32）和下午组（N = 36）。一周后，每组中的一些受试者在上午（N = 35）或下午（N = 33）接受测试。这两组人的生理时钟类型相似。长期外显记忆的表现不受测试时间的一天或由时钟类型。然而，有一个训练时间的一天的效果[F（1，56）= 53.667; P = 0.009]与那些谁在下午训练的表现更好。我们的数据表明，在下午的长期记忆性能的培训的优势不依赖于时钟类型，也是这种性能不受共时效应。
Studies have shown a time-of-day of training effect on long-term explicit memory with a greater effect being shown in the afternoon than in the morning. However, these studies did not control the chronotype variable. Therefore, the purpose of this study was to assess if the time-of-day effect on explicit memory would continue if this variable were controlled, in addition to identifying the occurrence of a possible synchronic effect. A total of 68 undergraduates were classified as morning, intermediate, or afternoon types. The subjects listened to a list of 10 words during the training phase and immediately performed a recognition task, a procedure which they repeated twice. One week later, they underwent an unannounced recognition test. The target list and the distractor words were the same in all series. The subjects were allocated to two groups according to acquisition time: a morning group (N = 32), and an afternoon group (N = 36). One week later, some of the subjects in each of these groups were subjected to a test in the morning (N = 35) or in the afternoon (N = 33). The groups had similar chronotypes. Long-term explicit memory performance was not affected by test time-of-day or by chronotype. However, there was a training time-of-day effect [F (1,56) = 53.667; P = 0.009] with better performance for those who trained in the afternoon. Our data indicated that the advantage of training in the afternoon for long-term memory performance does not depend on chronotype and also that this performance is not affected by the synchronic effect.