Slow-wave sleep and waking cognitive performance among older adults with and without insomnia complaints
Slow-wave sleep and waking cognitive performance among older adults with and without insomnia complaints
复制标题
DOI：
10.1016/s0031-9384(98)00316-3
复制
发表时间：
1999-05-01
影响因子：
2.9
通讯作者：
Edinger, JD
中科院分区：
文献类型：
--
作者：
Crenshaw, MC;Edinger, JD
先前的研究表明，在白天测试中反应时间相对较快的健康年轻人比在这种测试中反应时间相对较慢的年龄匹配的受试者有更多的夜间慢波睡眠。目前的研究是为了研究有和没有失眠症状的老年人的慢波睡眠和认知表现之间的关系。32名不抱怨的老年人（年龄大于或等于60岁）正常睡眠的样本和32名类似年龄的失眠症患者样本被招募参加一项更大的研究，作为研究对象。所有受试者在接受一系列日间测试之前立即进行夜间睡眠监测，这些测试测量了简单反应时间、警惕性/信号检测和复杂反应时间。正常睡眠者的结果显示，白天的认知表现测量和各种计算机计算的夜间慢波睡眠测量之间没有关系。相比之下，反应时间相对较慢的失眠症受试者在2至4赫兹带宽的慢波功率光谱分析中表现出相对缺陷。这些结果表明，一些老年失眠症患者的相对表现缺陷可能与特定的慢波睡眠缺陷有关。然而，在年龄较大的正常睡眠者中，受试者之间的表现差异似乎与慢波睡眠测量无关。需要进一步的研究来进一步探索慢波睡眠可能对认知功能的恢复作用，而不是本文所研究的。(C) 1999 Elsevier Science Inc.；
Previous research has shown that healthy young adults with relatively fast reaction times on daytime testing have significantly more nocturnal slow-wave sleep than do age-matched subjects with relatively slow reaction times on such testing. The current study was conducted to examine the relationship between slow-wave sleep and cognitive performance among older adults with and without insomnia complaints. A sample of 32 noncomplaining older (age greater than or equal to 60 years) normal sleepers and a like aged sample of 32 insomniacs, recruited to participate in a larger study, served as subjects. All subjects underwent nocturnal sleep monitoring immediately prior to undergoing a battery of daytime tests that measured simple reaction time, vigilance/signal detection, and complex reaction time. Results from the normal sleepers showed no relationship between daytime cognitive performance measures and a variety of computer-derived nocturnal slow-wave sleep measures. In contrast, insomniac subjects with relatively slow reaction times showed relative deficits in a spectral analytically derived measure of slow-wave power in the 2 to 4 Hz bandwidth. These results suggest that relative performance deficits among some older insomniacs may be related to specific slow-wave sleep deficiencies. However, among older normal sleepers, intersubject differences in performance appear unrelated to slow-wave sleep measures. Additional research is needed to further explore the possible restorative role slow-wave sleep may serve for cognitive functions other than those examined herein. (C) 1999 Elsevier Science Inc.