Field Of Sleep Research Research Articles

Effects of sleep deprivation on performance: a meta-analysis.

To quantitatively describe the effects of sleep loss, we used meta-analysis, a technique relatively new to the sleep research field, to mathematically summarize data from 19 original research studies. Results of our analysis of 143 study coefficients and a total sample size of 1.932 suggest that overall sleep deprivation strongly impairs human functioning. Moreover, we found that mood is more affected by sleep deprivation than either cognitive or motor performance and that partial sleep deprivation has a more profound effect on functioning than either long-term or short-term sleep deprivation. In general, these results indicate that the effects of sleep deprivation may be underestimated in some narrative reviews, particularly those concerning the effects of partial sleep deprivation.

Sono, depressão e tratamentos antidepressivos (2a. parte).

Sleep research in depressive disorders has advanced considerably in the last two decades. In this review we highlight the different facets of this research, including neurophysiological descriptions of sleep disturbances in depression and data regarding the effects of antidepressant treatments on sleep. The available information is discussed taking into consideration a possible pathogenic role of certain sleep changes in depression, as assumed by several theoretical models. The scope of these models and their explanatory power are briefly analysed. Some comments are made on conceptual and methodological problems in the field of sleep research in psychiatric disorders.

Sleep, depression, and antidepressive treatments (1)

Sleep research in depressive disorders has advanced considerably in the last two decades. In this review we highlight the different facets of this research, including neurophysiological descriptions of sleep disturbances in depression and data regarding the effects of antidepressant treatments on sleep. The available information is discussed taking into consideration a possible pathogenic role of certain sleep changes in depression, as assumed by several theoretical models. The scope of these models and their explanatory power are briefly analysed. Some comments are made on conceptual and methodological problems in the field of sleep research in psychiatric disorders.

The Field of Sleep Research: Clinical Considerations

The Field of Sleep Research: Clinical Considerations

The Psychology of Sleep

The author is writing for the interested layman as well as the specialist, presenting the current status of experimental research on psychological aspects of sleep. Several recently published popular accounts of sleep research have emphasized the physiological work. It is a little disappointing that the first chapter fails to convey the great excitement generated in the whole field of sleep research by the nature of recent findings, and the formulation that there are two entirely different kinds of sleep, so different physiologically that some researchers prefer to think of one of them—REM [rapid eye movement] sleep—as a state of existence. The second and third chapters deal with mental activity, during REM sleep, and the fourth and fifth deal with mental activity during NREM sleep. The book definitely picks up in the second chapter, which is a clear and compelling review of research findings regarding the association of dreaming and