Study Objectives: To replicate and expand upon past research by evaluating sleep and wake electroencephalographic spectral activity in samples of frequent nightmare (NM) recallers and healthy controls.
Methods: Computation of spectral activity for sleep (non-REM and REM) and wake electroencephalogram recordings from 18 frequent NM recallers and 15 control participants.
Results: There was higher "slow-theta" (2-5 Hz) for NM recallers than for controls during wake, non-REM sleep and REM sleep. Differences were clearest for frontal and central derivations and for REM sleep cycles 2-4. There was also higher beta activity during NREM sleep for NM recallers. Findings partially replicate past research by demonstrating higher relative "slow-theta" (3-4Hz) for NM recallers than for controls.
Conclusions: Findings are consistent with a neurocognitive model of nightmares that stipulates cross-state anomalies in emotion processing in NM-prone individuals.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5806577 | PMC |
| http://dx.doi.org/10.1093/sleep/zsx110 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Simultaneous activation of different subtypes of dopamine receptors may lead to activation of homeostatic sleep regulatory mechanisms.
Pharmacol Biochem Behav
January 2025
In vivo Electrophysiology Research Group, Department of Physiology and Neurobiology, Eötvös Loránd University, Hungary. Electronic address:
Dopaminergic system gains importance in homeostatic sleep regulation, but the role of different dopamine receptors is not well-defined. 72 h rat electrocorticogram and sleep recordings were made after single application of dopaminergic drugs in clinical use or at least underwent clinical trials. The non-selective agonist apomorphine evoked short pharmacological sleep deprivation with intense wakefulness followed by pronounced sleep rebound.
View Article and Find Full Text PDFREM obstructive sleep apnea: prevalence and clinical associations in a high-altitude population.
J Clin Sleep Med
January 2025
Fundación Neumológica Colombiana, Bogotá, Colombia.
Study Objectives: REM-associated OSA (REM OSA) has a prevalence of 17-74% of all OSA cases. At high altitude and in Latin America, there are no data on REM OSA and its relationship to daytime sleepiness and comorbidities. This study aimed to determine the prevalence of REM OSA and the differences in clinical and polysomnographic characteristics between OSA and REM OSA in a population living at 2640 m.
View Article and Find Full Text PDFPhasic dopamine release in the nucleus accumbens influences REM sleep timing.
J Neurosci
January 2025
Michigan Neuroscience Institute, University of Michigan, Ann Arbor, MI USA
Based on the activity of dopamine (DA) neurons during behavioral states, the DA system has long been thought to be foundational in regulating sleep-wake behavior; over the past decade advances in circuit manipulation and recording techniques have strengthened this perspective. Recently, several studies have demonstrated that DA release in regions of the limbic system is important in the promotion of REM sleep. Yet how DA dynamics change within bouts of sleep, how these changes are regulated, and whether they influence future state changes remains unclear.
View Article and Find Full Text PDFIs rapid eye movement sleep behavior disorder a marker of Parkinson's disease severity?
Parkinsonism Relat Disord
December 2024
Movement Disorders Unit, Neurology Service, Department of Clinical Medicine, Federal University of Minas Gerais, Av Pasteur 89/1107, 30150-290, Belo Horizonte, MG, Brazil. Electronic address:
Background: Parkinson's disease (PD) is characterized by motor and non-motor features. There are several proposed clinical markers to define disease severity. However, if rapid eye movement sleep behavior disorder (RBD) is associated with worse prognosis of both motor and non-motor findings in PD is unknown.
View Article and Find Full Text PDFSmoking History and Nicotine Dependence Alter Sleep Features in Patients with Obstructive Sleep Apnea-Hypopnea Syndrome.
Healthcare (Basel)
December 2024
Respiratory Failure Clinic and Sleep Laboratory, General Hospital of Thessaloniki "G. Papanikolaou", Aristotle's University of Thessaloniki, 541 24 Thessaloniki, Greece.
There are many aspects in the relationship between smoking and sleep that have not been investigated thoroughly yet, especially in regards to obstructive sleep apnea-hypopnea syndrome (OSAHS). In this cross-sectional study, 2359 participants, who have visited the sleep clinic of our hospital during a 13-year period and were former or current smokers, were included. Their smoking history, measured in packyears of smoking, and their nicotine dependence, measured with the Fagerström scale, were correlated with various epidemiological and sleep-related variables.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!