Diurnal variations in the mood and performance of highly practised young women living under strictly controlled conditions
Diurnal variations in the mood and performance of highly practised young women living under strictly controlled conditions
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DOI：
10.1348/000712600161664
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发表时间：
2000-02-01
影响因子：
4
通讯作者：
Folkard, S
中科院分区：
文献类型：
--
作者：
Owens, DS;Macdonald, I;Folkard, S
一系列研究调查了一系列心理功能和核心体温的昼夜变化，涉及 24 名训练有素的年轻女性，她们生活在受控环境中，并严格遵守 24 小时惯例，持续 6 或 7 天。 10 名参与者通过窗户暴露在自然光/黑暗循环 (L/Dc) 下，而其余 14 名参与者看不到日光，但所有人都可以使用正常的时钟时间。清醒时每 2 小时（08:00-00:00）完成一系列情绪和表现测试，每个清醒日进行九次等间隔的测量。平均一天时间 (ToD) 函数是根据过去 5 或 6 天在受控环境中度过的时间计算得出的。尽管这些影响的性质因措施而异，但在许多变量中都发现了显着的影响，在 16:00 时观察到某些变量出现“午餐后下降”。对标准化数据的分析表明，所有变量都对核心体温呈现可靠的不同 ToD 函数，而因子分析表明了变量之间可能存在的关系。结论是，那些表现出昼夜变化的变量所表现出的趋势与核心体温的趋势并不相符。
The diurnal variation in a range of psychological functions and core body temperature were investigated in a series of studies involving a total of 24 highly practised young women who lived in a controlled environment and on a strictly regimented 24-hour routine for 6 or 7 days. Ten participants were exposed to the natural light/dark cycle (L/Dc) through windows, whereas the 14 remaining participants saw no daylight, but all had access to normal clock time. A battery of mood and performance tests was completed every 2 hours whilst awake (08:00-00:00), resulting in nine equally spaced measures per waking day. Average time of day (ToD) functions were calculated from the last 5 or 6 days spent in the controlled environment. Significant Too effects were found for many of the variables taken although the nature of these effects differed across measures, with a 'post-lunch dip' being observed at 16:00 in some variables. Analysis of the standardized data established that all variables presented reliably different ToD functions to core body temperature, whilst factor analyses indicated possible relationships between the variables. It was concluded that those variables that exhibited diurnal variation showed trends that did not parallel those in core body temperature.