Rosenlicht N, Maloney T, Feinberg I
Department of Veterans Affairs Northern California System of Clinics, Sacramento.
Brain Res Bull. 1994;34(2):99-101. doi: 10.1016/0361-9230(94)90004-3.
Twenty two young adult subjects (Ss) were monitored for 2 consecutive nights in the sleep laboratory. Each S was awakened three times per night: at sleep onset and during the second (REMP2) and fourth (REMP4) REM periods. Length of time in each REMP prior to awakening was either 5 or 10 min, counterbalanced on successive nights. Sleep mentation reports were obtained by standardized interview and scored for total word count (TWC). TWC after 5 min of prior REM sleep did not differ significantly from TWC after 10 min of prior REM sleep. However, mean TWC from REMP4 awakenings was almost twice that from REMP2 awakenings. These findings are consistent with the hypothesis that the amount of recall from experimental REM awakenings depends on central arousal level and its effects on mnemonic processes.
22名年轻成人受试者在睡眠实验室连续监测两晚。每位受试者每晚被唤醒三次：入睡时以及在快速眼动睡眠的第二个（REMP2）和第四个（REMP4）阶段。每次唤醒前每个快速眼动睡眠阶段的时长为5分钟或10分钟，在连续的夜晚进行平衡处理。通过标准化访谈获取睡眠思维报告，并对总词数（TWC）进行评分。快速眼动睡眠前5分钟后的总词数与快速眼动睡眠前10分钟后的总词数无显著差异。然而，REMP4唤醒后的平均总词数几乎是REMP2唤醒后的两倍。这些发现与以下假设一致，即实验性快速眼动唤醒后的回忆量取决于中枢唤醒水平及其对记忆过程的影响。
