REM dream activity of insomnia sufferers: a systematic comparison with good sleepers

Pérusse, Alexandra D.; Koninck, Joseph De; Pedneault-Drolet, Maude; Ellis, Jason; Bastien, Célyne

doi:10.1016/j.sleep.2015.08.007

Cited by 20 publications

(11 citation statements)

References 28 publications

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“…It is also important to note that although sleep diaries in the NF group showed an overall improvement in sleep, there was no significant change in sleep diaries completed the day after the PSG recordings compared to those completed at home. This suggests a strong influence of the environment on the results, which is in accordance with sleep studies that have shown the effects of sleep laboratories on sleep parameters[ 47 , 48 ].…”

Section: Resultssupporting

confidence: 87%

Neurofeedback for insomnia: Current state of research

Lambert-Beaudet

Journault

Provençal

et al. 2021

WJP

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BACKGROUND Chronic insomnia affects about 6%-13% of the Canadian population. Although treatments already exist, they each have their own issues. Neurofeedback is a neuromodulation technique that specifically targets abnormal brain activity and is gaining attention as a possible insomnia treatment. AIM To review the latest studies pertaining to the use of neurofeedback in the treatment of insomnia. METHODS In this non-systematic review, only experimental studies assessing the effects of neurofeedback on patients with insomnia were targeted across four bibliographic databases. RESULTS A total of 12 studies were retained. All neurofeedback studies included in this study showed a clear improvement of subjective sleep. However, data concerning objective improvement are contradictory. Most studies regarding surface and z-score neurofeedback show that neurofeedback targeting the sensorimotor rhythm in the sensorimotor cortex may help improve subjective sleep. A placebo effect seems also to be present in some studies. Several limitations were present in each study. CONCLUSION While studies concerning neurofeedback as a treatment for insomnia are encouraging, many methodological barriers remain to be resolved to prove its efficacy unequivocally. More studies using robust design parameters, as well as the replication of existing studies, are necessary to support neurofeedback as an effective treatment for insomnia.

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Section: Resultssupporting

confidence: 87%

Neurofeedback for insomnia: Current state of research

Lambert-Beaudet

Journault

Provençal

et al. 2021

WJP

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“…In foreign literature, it is further considered that a decreased REM latency period is the characteristic change in insomnia. In addition, there are such abnormalities as decreased S3 and S4 sleep, increased REM density, decreased sleep efficiency, and so forth [20]. The characteristic changes of insomnia PSG are the change in sleep continuity and abnormality in structure including increased awakening times at night, decreased actual sleep time, and low sleep efficiency.…”

Section: Discussionmentioning

confidence: 99%

Clinical Trial Research on Mongolian Medical Warm Acupuncture in Treating Insomnia

Wang

et al. 2016

Evidence-Based Complementary and Alternative Medicine

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Objective. Insomnia is one of the most common sleep disorders. Hypnotics have poor long-term efficacy. Mongolian medical warm acupuncture has significant efficacy in treating insomnia. The paper evaluates the role of Mongolian medical warm acupuncture in treating insomnia by investigating the Mongolian medicine syndromes and conditions, Pittsburgh sleep quality index, and polysomnography indexes. Method. The patients were diagnosed in accordance with International Classification of Sleep Disorders (ICSD-2). The insomnia patients were divided into the acupuncture group (40 cases) and the estazolam group (40 cases). The patients underwent intervention of Mongolian medical warm acupuncture and estazolam. The indicators of the Mongolian medicine syndromes and conditions, Pittsburgh sleep quality index (PSQI), and polysomnography indexes (PSG) have been detected. Result. Based on the comparison of the Mongolian medicine syndrome scores between the warm acupuncture group and the drug treatment group, the result indicated P < 0.01. The clinical efficacy result showed that the effective rate (85%) in the warm acupuncture group was higher than that (70%) in the drug group. The total scores of PSQI of both groups were approximated. The sleep quality indexes of both groups decreased significantly (P < 0.05). The sleep quality index in the Mongolian medical warm acupuncture group decreased significantly (P < 0.01) and was better than that in the estazolam group. The sleep efficiency and daytime functions of the patients in the Mongolian medical warm acupuncture group improved significantly (P < 0.01). The sleep time was significantly extended (P < 0.01) in the Mongolian medical warm acupuncture group following PSG intervention. The sleep time during NREM in the Mongolian warm acupuncture group increased significantly (P < 0.01). The sleep time exhibited a decreasing trend during REM and it decreased significantly in the Mongolian warm acupuncture group (P < 0.01). The percentage of sleep time in the total sleep time during NREM3+4 in the Mongolian medical warm acupuncture group increased significantly. Conclusion. Mongolian medical warm acupuncture is efficient and safe in treating insomnia. It is able to better improve the patients' sleep time and daytime functions. It is better than that in the estazolam group following drug withdrawal in terms of improving the sleep time. It is more effective in helping the insomnia patients than hypnotics.

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“…In order to gain more direct insight into the characteristics of this modified REM sleep, awakening studies are needed for assessing sleep mentation and perception reports for defined sleep stages [ 16 , 17 ]. However, systematic research in this area is scarce.…”

Section: Introductionmentioning

confidence: 99%

“…Ermann [ 20 ] conducted a REM awakening study and found that dreams of insomnia patients more often contained negatives in self-description and negatives in the dream description. Perussé and colleagues [ 17 ] found that dreams of insomnia patients elicited after REM sleep awakenings were characterized by more negative elements than positive ones. Furthermore, the negative dream content was associated with lower sleep efficiencies in insomnia patients.…”

Section: Introductionmentioning

confidence: 99%

Dreaming and Insomnia: Link between Physiological REM Parameters and Mentation Characteristics

2020

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(1) Background: An unresolved phenomenon of insomnia disorder is a discrepancy between objectively measured sleep and subjective complaints. It has been shown that rapid eye movement (REM) sleep might be especially vulnerable to an altered perception. The present work aimed to investigate the link between physiological REM parameters and mentation characteristics in REM sleep. (2) Methods: 22 patients with insomnia and 23 good sleepers indicating at least one REM mentation within an awakening study were included. Multivariate analyses of variance (MANOVAs) were calculated to examine group differences and effects of mentation characteristics on number of arousals, REM density, and spectral power prior to awakenings. (3) Results: Increased perceived wakefulness was related to lower delta, theta, and alpha power in the minute prior to the REM awakenings. Nevertheless, no group differences regarding spectral power were found. With respect to number of arousals and REM density, no significant effects of mentation characteristics and no group differences were found. (4) Conclusions: Our results suggest that spectral power in REM sleep is linked with altered sleep perception. Reduced delta, theta, and alpha power might be a signature of this modified REM sleep associated with a high level of perceived wakefulness. Future awakening studies are necessary to further explore the link between physiological REM parameters and sleep perception.

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REM dream activity of insomnia sufferers: a systematic comparison with good sleepers

Cited by 20 publications

References 28 publications

Neurofeedback for insomnia: Current state of research

Neurofeedback for insomnia: Current state of research

Clinical Trial Research on Mongolian Medical Warm Acupuncture in Treating Insomnia

Dreaming and Insomnia: Link between Physiological REM Parameters and Mentation Characteristics

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