Continuous Re-Exposure to Environmental Sound Cues During Sleep Does Not Improve Memory for Semantically Unrelated Word Pairs.
Continuous Re-Exposure to Environmental Sound Cues During Sleep Does Not Improve Memory for Semantically Unrelated Word Pairs.
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DOI：
10.1891/1945-8959.10.2.167
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发表时间：
2011-06-01
期刊：
影响因子：
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通讯作者：
Spencer RM
中科院分区：
文献类型：
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作者：
Donohue KC;Spencer RM
最近的两项研究表明，在编码过程中出现的线索如果在睡眠中重新出现，可以增强回忆。这是一种学术策略。这种效应仅在空间学习中得到证实，提示呈现仅限于慢波睡眠（SWS）。本研究的目的是探讨是否声音增强睡眠依赖巩固的语义任务，如果声音在睡眠中不断重新提出。参与者在晚上编码一系列单词对，并在夜间睡眠间隔后进行回忆。参与者用声音机器发出的“海洋”的声音对这些对进行编码。第一组在这种声音下睡觉;第二组在不同的声音（“雨”）下睡觉;第三组在没有声音的情况下睡觉。在声音中睡觉对随后的回忆没有影响。虽然是一个空的结果，这项工作提供了一个重要的测试上下文的影响，对睡眠依赖的记忆巩固。
Two recent studies illustrated that cues present during encoding can enhance recall if re-presented during sleep. This suggests an academic strategy. Such effects have only been demonstrated with spatial learning and cue presentation was isolated to slow wave sleep (SWS). The goal of this study was to examine whether sounds enhance sleep-dependent consolidation of a semantic task if the sounds are re-presented continuously during sleep. Participants encoded a list of word pairs in the evening and recall was probed following an interval with overnight sleep. Participants encoded the pairs with the sound of “the ocean” from a sound machine. The first group slept with this sound; the second group slept with a different sound (“rain”); and the third group slept with no sound. Sleeping with sound had no impact on subsequent recall. Although a null result, this work provides an important test of the implications of context effects on sleep-dependent memory consolidation.